Proceedings of the United States National Museum

EEPOET ON A ^COLLECTION OF DIPTEROUS INSECTS

FROM PUERTO RICO.

By

D.

W. COQUILLETT,

Custodian of ^Ihe Dipterain the TJ. S. NationalMuseum.

During

the

months

of

January and

February, 1899, Mr.

August

Busck, of the U. S.

Department

of Agriculture, through the courtesy of theU. S. Fish Commission, visited various portions of Puerto Rico,

and among

other things collected quite a large series of dipterous insects, which were later deposited in the U. S. National

Museum.

Thisseries comprises 864 specimens, representing 117 species, distrib-

utedin 79 genera

and

31families. Threeof the genera

and

sixteenof the speciesappearto be

new

to science,

and

aredulycharacterizedin the following pages. Fifty-one of the species, nearly one-halfof the whole number,also occurin the United States proper, severalof

them

ranging as far northwardas the State of

New

Hampshire.

Twenty

of the others

have

not as yetbeenreported as occurring outside ofPuerto Rico, while the remainingforty-sixspecies

have

also been obtainedin

some

other island of the

West

Indies or in Central or South America.

Only

averyfew species ofDiptera were describedfrom Puerto Rico

by

the older authors,

and

it

was

notuntil the year 1885 that

any

con- siderable

number

ofspecies were reported from that island. Inthat year

Herr

VictorvonRoeder, of

Hoym, Germany,

published a^list,with descriptions of

new

forms, of a seriesof theseinsects collected

by

Con- sul Krug.^ This list

numbers

111 species, of

which

76 are different from those obtained

by

Mr. Busck; adding these to the 117 species obtained

by

thelatter gives a totalof 193 species

now known

tooccur inPuerto Rico.

The

reportin detailis asfollows

:

Family CECIDOMYIID^.

DIPLOSIS COCCIDARUM

CockereU.

Twenty

specimens bredfromlarvae associatedwith Dactylopius citri,

and

ninespecimens bred from

Leeanium

hemisphaericum; also a single specimen captured at

Mayaguez

in January. This species

was

^origi-

^Entomologische Zeitung zuStettin, 1885, pp. 337-349. Republished,withnotes,

bySeuorJuan GundlachintheAnales delaSociedad EspanoladeHistoria Natural, 1887,pp. 177-199.

Proceedings U.S. National Museum,Vol.XXII—No. 1198.

' 249

250 PROCEEDINGS OF THE NATIONAL MUSEUM.

^vol.xxii.

nallydescribedfrom specimens bred from larvseassociatedwitlivarious Coccids

and

AleiirodesatKingston,Jamacia.

The

PuertoRicanspeci-

mens

do not differappreciably froma series of six specimens from the formerlocalityreceivedfrom Professor Cockerell

and by him

bred from larvseassociated with Pulvinaria urbicola.

Family

CULICID^.

CULEX PERTURBANS

^Walker.

Two

specimens captured ^at

Bayamon

in January. This species also occurs in thiscountry, extendingfrom

Maryland

southward toFlorida

and

Texas.

Family

OHIROXOMID^.

CHIRONOMUS REDUENS

^Walker.

A

^singlespecimen capturedat Aguadilla in January. This species isalso

known

to occurin Mississippi.

CERATOPOGON SEQUAX

Williston.

Seventeen specimens captured ⁱⁿ

January

at Utuado, Aguadilla,

Bayamon, and

Mayaguez. It

was

originally described from St.Vin- cent,

West

^Indies.

CERATOPOGON PUNCTIPENNIS

^Williston.

A

^single specimen from AguadillainJanuary. Thisspecies

was

^also

originallydescribed from St.Vincent.

Family

BIBIONID^.

SCATOPSE PYGMiEA

^Loew.

Two

specimens captured ^at

Mayaguez

in January.

The

species

was

originally described from the Districtof Columbia, but has ^also been reportedfrom St. Vincent,

West

Indies.

Family TIPULID^.

GERANOMYIA RUFESCENS

Loew.

A

^{single specimen collected at Aguadilla in January. Originally}

describedfrom PuertoEico.

ATARBA PLEURALIS

W^illiston.

A

^single specimen captured at Aguadilla in January.

The

type locality of this speciesis St.Vincent,

West

Indies.

Family

STRATIOMYIID^.

HERMETIA ILLUCENS

Linnaeus.

Two

specimenscollected at

Utuado and

^{Aguadillain January.}

The

species has a wide distribution, extending from the southern portion of theUnited States, throughMexico, CentralAmerica,

and

the

West

Indies, into South

America

at leastas far as Brazil.

NO.^1198.

BIPTEBA FBOM PUERTO BICO—COQUILLETT. 251 ODONTOMYIA ^DORSALIS

^Fabricius.

.

A

^single specimen from Fajardo in February. It has previously beenreportedfrom Santo

Domingo, West

Indies,

and

South America.

Family

ASILID^.

PROCTACANTHUS RUFIVENTRIS

Macquart.

A

^femalespecimen cai^tured at

Arroyo

in February.

The

species

was

originally described from Santo

Domingo, and

has alreadybeen reported from Puerto Rico

by

Mr. V.

von

Boeder.

Family BOMBYLIID^.

HYPERALONIA SERVILLEI

Macquart.

Elevenspecimens,

Mayaguez and

AguadillainJanuary,

and

Fajardo, Arroyo,

and

ViequesIsland in February. Specimens are also in the U.S.National

Museum

from Nassau,

Bahama

Islands, collected

by

Dr.

H.G.Dyar.

ANTHRAX GORGON

^Fabricius.

Seven specimens, captured at

Mayaguez and

Aguadillain January, and ViequesIsland

and

Fajardoin February.

The

species

was

origi- nally described from the

West

Indies,

and

has been reported from PuertoRico

by

Mr. von Boeder.

Family EMPID^.

EUHYBUS SUBJECTUS

^Walker.

A

single specimen, collected at

Utuado

in January. This speciesis alsofound in the eastern portion of theUnited States, ranging from the

White

Mountains,

New

Hampshire,tothesouthern part ofFlorida.

TACHYDROMIA FLAVIDA

Williston.

Three specimens,captured at Aguadillain January,

and

Fajardo in February.

The

species

was

originally described from St. Vincent,

West

Indies,

and was

placed

by

Dr. Williston in the genus Drapetis.

It is, however, a true Tachydromia, having the front femora consid- erably thickened, as statedin theoriginal description.^

Family DOLICHOPODID^.

PARACLIUS FILIFERUS

^Aldrich.

Threespecimens,capturedon Vieques Islandin February.

The

spe- cies

was

originallydescribed from St. Vincent,

West

Indies.

PELASTONEURUS ^FASCIATUS

^Roeder.

Five specimens, from Arroyo, Vieques Island,

and

Fajardoin Feb- ruary.

The

typelocality ofthis speciesis PuertoRico.

'In Williston's table of the species of Drapetis collectedin St.Vincenttwoserious errors occur. For xantJiopoda readflavidus, and for flavipesreadxoMthopodus. The tableispublishedinTrans. Ent.Soc.Londonfor 1896, p. 441.

252 PROCEEDINGS OF THE NATIONAL MUSEUM.'

^vol.xxii.

PSILOPUS LONGICORNIS

Fabricius,

A

^{single specimen,} collected at Fajardo in February.

The

sijecies

was

originallydescribed from the

West

Indies.

PSILOPUS PORTORICENSIS?

Macquart.

Five specimens, from

Mayaguez and

Aguadilla in January,

and Arroyo and

Vieques Island in February.

They

agree verywellwith the short description,

which was

based on a specimen from Puerto Eico, except that the antennalaristais whollybare.

SYNTORMON BARBATUS

Loew.

Utuado, in January.

A

single specimen of this species, originally describedfrom theMiddleStates.

CHRYSOTUS PALLIPES

Loew.

Thirty-two specimens, fromTJtuado, Aguadilla,

Bayamon, and May-

aguez in January,

and

Arroyo, Fajardo, Vieques Island,

and

Culebra Island in February. Originally describedfrom the

Middle

States, Dr.

Schiner has recorded it from South America,

and

it is

among

the species reported

by von

Boeder from PuertoRico.

Family SYEPHIDJE.

BACCHA CLAVATA

Fabricius.

Four

specimens,collected atAguadilla

and Mayaguez

inJanuary,

and

Fajardo

and

ArroyoinFebruary. OriginallydescribedfromSouth America, thisspeciesis at present

known

to

have

a very wide range, extending from

Nebraska

on the north to

Buenos

Ayres,Argentina,

on

the south,

and

including the

West

Indian

and

neighboring islands.

Von

Eoeder hasalready reported itfrom PuertoEico.

BACCHA

species.

Two

specimenswere bred from larvsefeeding

upon

Dactylopius citri

on Culebra Island in February; they represent a species distinct from the above, but are too

immature

to admit of a positive identi- fication.

OCYPTAMUS LATIUSCULA

Loew.

A

^single specimen, collected at Fajardo in February. This species

was

^originallydescribed from Cuba,

and

has also been reported from Jamaica

and

Santo

Domingo. Von Eoeder

has already recorded it

fromPuerto Eico.

ERISTALIS VINETORUM

Fabricius.

Seven specimens, collected at

Mayaguez and

AguadillainJanuary,

and Arroyo

in February. This species

was

originally describedfrom Brazil,

and

is

now

reported as occurring over nearly theentire eastern

NO.1198.

DIPTEBA FROM PUERTO BTCO—COQUILLETT. 253

half of the United States, the whole ofMexico, Central

and

South America,

and

the

West

Indies. It

was

previouslyrei^ortedfrom Puerto Eico

by

von Boeder.

ERISTALIS ALBIFRONS

Wiedemann.

A

^{single specimen,collected at}

^Arroyo

^{in February. This species}

was

also originallydescribedfromBrazil,

and

haspractically the

same

distribution as thepreceding species.

MESOGRAMMA LACINIOSA

Loew.

A

^singlespecimen from

Utuado

in January.

The

type locality of this species is Cuba, but it is also reported from St. Vincent,

West

Indies,

and von

Boeder hasrecorded its occurrenceinPuerto Eico.

MESOGRAMMA ARCIFERA

Loew.

Twelve

specimenscollected at

Mayaguez and

AguadillainJanuary,

and

ViequesIsland,CulebraIsland, Arroyo,

and

Fajardoin February.

This species

was

also originally described from Cuba,

and

has been reported

by

Mr. C.

W. Johnson

as occurringin Jamaica.

MESOGRAMMA SUBANNULATA

Loew.

Eighteen specimens from

Utuado and

Aguadilla in January,

and

ViequesIsland, Fajardo,

and Arroyo

inFebruary. Originally described fromCuba,

and

Mr.

Johnson

hasreporteditfrom Jamaica. Mesograptaf cuprina Bigot, alsodescribedfrom Cuba, is a synonym.

Family PHOEID^.

PHORA AUREA

^Aldrich,

Fivespecimens,taken at

Mayaguez and Bayamon

inJanuary,

and Arroyo

in February. This species

was

originally reported from St.

Vincent,

West

Indies.

Family TACHIMD^.

ARCHYTAS BASIFULVA

Walker.

A

single specimen captured on Vieques Island inFebruary.

The

typelocalityof this speciesisJamaica,

West

Indies.

EUPHOROCERA CLARIPENNIS

Macquart.

Threespecimens,bredFebruary10,fromcocoons ofMegalopygehrugii Dewitz, collected at

San

Juan. This Tachinid isfound in allparts of theUnited States, but has not heretofore been reported as occurring outside of thiscountry.

BELVOSIA LUTEOLA,

new species.

Female:

Head

yellow, the occiput, except the lower portion

and

a semicircular spotin themiddleoftheupperedge, black,graypruinose;

254 PROCEEDINGS OF THE NATIONAL MUSEUM.

^vol.xxii.

frontal vittaopaque, orangeyellow; aides offront polished,except the lower outerangles, whichare golden yellow pruiuose; frontal bristles descending slightly below the arista; face

and

cheeks silvery white pruinose; sidesoffacebearinga triangularpatchofshortwhite bristly hairs,extending nearly one-third of distancefrom the lowest frontal bristle totheoral margin; antennae reaching six-sevenths of distance totheoral margin, black, thefirst

two

joints reddishyellow, thethird about fivetimes as long as the second, arista thickened almosttoits apex, the penultimate joint slightlylonger thanbroad; palpiyellow, proboscisbrownish black.

Thorax

black, graypruinose,

marked

with fourblackvittse,bearing fourpairsof postsutural dorso-centralmacro-

chaitfe

and

foursternopleural; scutellumbrown,the margin yellowish.

Abdomen

^yellow, the baseof thefirst segment, a dorsalvitta,

and

the posteriormargin of the third segment black; the fourth segment

and

bases of the

two

preceding yellowish pruinose, the macrochsetse only marginal.

Legs

black.

Wings

blackish,the anterior basal portion subhyaline, tingedin placeswith yellowish, the third veinbearing two or threebristlesnear the base; calypteres white. Length, 11

mm. A

single specimen taken onViequesIslandin February.

Type.—

Gat. No. 4373, U.S.K.M.

HYPOSTENA VANDERWULPII

Townsend.

A

^single specimen captured on Vieques Island in February.

The

species

was

originallyreportedfromFlorida,butalsooccursinsouthern California.

Family

DEXIDJE.

MYOCERA RUFIANALIS

vanderWulp.

•

A

^{single specimen,}from Oulebra Island in February.

The

species

was

originally describedfrom Mexico, butalsooccursinJamaica,

West

Indies.

Family SAROOPHAGID^.

SARCOPHAGA OCCIDUA

^Fabricius.

Fifty-five specimens, collected atMayaguez,

Bayamon,

Utuado,

and

Aguadilla in January;

and

Vieques Island, Arroyo,

and

Fajardo in February.

The

species

was

originallydescribed from the

West

Indies.

SARCOPHAGA PLINTHOPYGA

W^iedemann.

Twenty-eight specimens,from Aguadilla, Utuado,

and Mayaguez

in January,

and

ViequesIsland,CulebraIsland,

and

FajardoinFebruary.

This species

was

originally described from St.

Thomas, West

Indies,

and

hasbeenreported fromJamaica

by

Mr.

Johnson and

from Puerto Rico

by von

Eoeder.

SARCOPHAGA LAMBENS

Wiedemann.

Five specimens, from Vieques Island

and

Culebra Island in Feb- ruary. OriginallydescribedfromSt.Paul,Brazil,

and

the

West

Indies, ithasalready beenreportedfrom PuertoKico

by

Mr.von Boeder.

NO.1198.

DIPTEBA FROM PUERTO BICO—COQUILLETT. 255 SARCOPHAGA DIVERSIPES,

new species.

Female

: Black, thefirst

two

antennaljoints,palpi,trochanters,broad apices ofthe femora,

and

thegenitaliayellow;frontal vittadark brown, sides of front golden yellow pruinose,changingto grayat thevertex, one pair of orbital bristles, uo ocellar bristles, frontals descending almostto apexofthefirstantennal joint,middleof facegraypruinose, the sides

and

upperi)artofthecheeks goldenyellow,remainingportion of the cheeks brownish, sides of face each bearing a

row

of short, scarcely perceptible, bristly hairs, antennae nearly reaching the oral margin, thethird joint slightly over twice aslong as the second, arista long-plumoseon the basalthree-fourths; thoraxgraypruinose,

marked

with threebroad black vitta,a black streak infront of the insertionof each

wing and

asecond near the center of the pleura; three pairs of large postsutural dorso-central macrochsetse, one pair ofacresticbals,

and two

sterno-pleurals; scutellum gray pruinose,the middle third black;

abdomen

opaque,graypruinose,threevittiB

and

thehindmargin ofeachofthefirstfour segments black, the

two

outermostvittsebeing

composed

of triangular black spots; wings hyaline, the third vein bristlyaboutone- thirdofdistancefrom itsbase tothe small crossvein;

calypteres white. Length,

mm.

Fajardo,in February.

Two

speci-

mens.

Type.—Qskt. No.4374,U.S.N.M.

HELICOBIA HELICIS

Townsend.

Seven specimens, collected at

Bayamon

in January,

and

Fajardo, Arroyo,

and

ViequesIsland in February. This species isdistributed over nearly thewholeof the United States.

HELICOBIA

species.

A

^{single specimen,} from CulebraIslandin February.

Family

OALLIPHOKID^.

CHRYSOMYIA MACELLARIA

Fabricius.

Two

specimens, taken at

Mayaguez

in January,

and

CulebraIsland in February.

The known

range of this species is from Ohio south-

ward

through Mexico, CentralAmerica,the

West

Indies,

and

over the greater portion ofSouth America.

LUCILIA CiESAR

Linnaeus.

One

specimen,collected at Fajardo in February.

A European

spe- cies, which is

now

distributed over the greater portion of the

warmer

part of thisglobe.

256 PROCEEDINGS OF THE NATIONAL MUSEUM.

^vol.xxii.

Family MUSOID^.

MUSCA DOMESTICA

Linnaeus.

A

^{single specimen of this} cosmopolitan species

was

captured on Culebra Islandin February.

STOMOXYS CALCITRANS

Linnaeus.

A

^{single specimen, captured onVieques Island in February. This}

specieshasnearlythe

same

distribution as L. cwsar.

PYRELLIA OCJIRICORNIS

Wiedemann.

Mne

specimens, takenon CulebraIsland in February.

The

species

was

originallydescribed from Brazil, but has also been reported from

Cuba and

PuertoEico.

MUSCINA TRIPUNCTATA

vanderWulp.

A

^single specimen from Culebra Island inFebruary.

The

species

was

^{originally describedfrom Mexico.}

LIMNOPHORA ARCUATA

Stein.

Threespecimens,capturedat

May

aguezinJanuary,

and

CulebraIsland

and

Arroyoin February.

The

typelocality of this speciesis Georgia,

and

Ihaveseen specimenscollected in theDistrict ofColumbia.

LISPA RUFITIBIALIS

Macquart.

Three specimens, taken at Fajardo

and

Viequesisland inFebruary.

The

species

was

^{originallydescribed} from South America.

CCENOSIA VARICORNIS,

new species.

Male and

female^: Black, the third antennaljointofthe male,except

its base, the extreme apices of the femora, whole of tibiee, base of tarsi

and

^{halteres, yellow; an}elongate triangular spot belowtheocelli,

dark-gray pruinose, sides of front gray pruiuose, the face, cheeks, third jointofantennae, excei)t^itsbase,

and

the upper edgeof the sec-

ond

joint, whitish pruinose; antennae two-thirds as long as theface, thethird jointone

and

one-third times aslong asthe second, its lower front corner produced in theform of a sharp tooth; arista short plu- mose, the longest hairs onlyslightlylonger than its greatestdiameter;

thorax gray pruinose,

marked

with five blackish-brown ^vittae, the medio-dorsal

and

lateral ones broad, the former almost crossing the scutellum, theremainingpairnarrow

and

interrupted, rarely wanting;

two

pairs of postsutural dorsocentral macrochaette, the bristly hairs between

them

arranged in

two

rows;

abdomen

graypruinose, apair of suborbicular blackish spots ontheposteriorpart of the firstthreeseg- ments, thoseon thesecond

and

third the

most

distinct

and

each bear- ing amacrochsetaonits anteriorpart; a blackish-brown interrupted

NO.1198. iriPTEBA

FROM PUERTO BICO—COQUILLETT. 257

medio-dorsalvitta, reduced in tbe femaleto a dotonthe second

and

third segments; fourth segment bearing adiscal

and

amarginal

row

ofmacrochsetse^; fronttibisB eachbearing asinglemacrochseta, situated near the middleof the posterior side, middle tibiae each with a pair near the middle; hindtibiaBeach with acircle of fournearthe middle, besides those at the apices; wings hyaline,

unmarked;

calypteres white. Length,4to 5

mm. Bayamon,

Aguadilla,

and

TJtuado inJanu- ary,

and

Vieqvies Island, Fajardo,

and Arroyo

in February.

Ten

males

and two

females.

Tyi^e.—Oat. No.4375, U.S.N.M.

Family SGATOPHAGID^.

SCATOPHAGA EXOTICA

Wiedemann.

Four

specimens, collected on Culebra Island in February. This species

was

originally describedfrom

New

Orleans, Louisiana.

Family

MIOROPEZID^.

CALOBATA FASCIATA

Fabricius.

Eight specimens,capturedwith the preceding. IthasbeenreiDorted from Jamaica, PuertoEico,

and

Florida.

CALOBATA LASCIVA

Fabricius.

Six specimens, from

Mayaguez

in January,

and

Fajardo

and

Vieques Island in February. This species

was

originally described from Cayenne, French Guiana,

and

has been reported from Puerto Eico, Cuba, Jamaica, Florida,

New

York,

and

Mexico, while the U. S.

National

Museum

contains specimens from Georgia, South Carolina, Louisiana,California,

and

Brazil.

Macquart

has also recordeditfrom Philadelphia, Pennsylvania, Java,

and

Australia, but itisvery doubt- ful that this speciesoccurs ineitherof the

two

last-named localities.

Calobata lunulata of

van

der

Wulp

^{^} is asynonym, as that author sus- pected itmightbe.

MICROPEZA LIMBATA

Roeder.

A

^single specimen collected at

Mayaguez

in eTanuary.

The

species

was

^originally describedfromPuertoEico.

Family

OETALID^.

EUXESTA THOM^

Loew.

Fifteen specimens, collected at

Bayamon, Mayaguez, and

Aguadilla in January,

and Arroyo and

Vieques Island in February.

The

type localityis St.

Thomas, West

Indies.

'Biol.Ceut.-Am.,II,p.372.

Proc. N.

M.

vol. xxii 17

258 PROCEEDINGS OF TRE NATIONAL MUSEUM.

EUXESTA STIGMATIAS

Loew.

Three specimens, from

Mayaguez and

Aguadilla in January,

and

Vieques ^{Island in} February. This species

was

originally described from specimens collected in

Cuba and

Brazil,

and

has been reported from Puerto Eico

and

St. Vincent ^Island.

EUXESTA SPOLIATA

Loe^

Two

specimens, from Aguadilla ⁱⁿ January,

and

Fajardo in Febru- ary. It

was

originally described from Cuba,

and

von Boeder has already reported^its occurrencein PuertoEico.

EUXESTA APICALIS

Williston.

A

single specimen, captured at

Utuado

in January.

The

type ^local-

ityisSt. Vincent,

West

Indies.

Family

TEYPETID^.

ACIURA INSECTA

Loew.

Twenty-one specimens, from Aguadilla, Mayaguez,

and Utuado

in January,

and

Fajardoⁱⁿ February. Originally described from Cuba, thisspecieshasbeenreportedfrom PuertoEico,Haiti,Jamaica,Florida, Colombia,

and

Brazil.

TEPHRITIS PEREGRINA

Loew.

Thirteen specimens, collected at Aguadilla

and Mayaguez

in Jan- uary,

and

ViequesIslandinFebruary. OriginallydescribedfromBrazil, ithasalsobeenreported from St.Vincent,

West

Indies.

Family

SAPEOMYZIDiE.

PHYSEGENUA OBSCURIPENNIS

Bigot.

Thirteen specimens, fromUtuado, Mayaguez,

and

Aguadillain Jan- uary. Originally described from Cuba, it has been reported from Puerto Eico, Jamaica,

and

South America.

Von

Eoeder has already published the fact that

Lauxania

variegata Loew, also described from Cuba,isa

synonym

ofthepresentspecies.

SAPROMYZA SORDIDA

Wiedemann.

A

^single specimen, collected at Aguadillain January. This species

was

originally describedfrom the

West

Indies,

and

the U. S.National

Museum

contains specimens which were collected in Florida

and

Georgia.

LONCH.^A LONGICORNIS

^Williston.

A

^{single specimen,} captured at

Utuado

in January. Originally described from St. Vincent,

West

Indies.

NO.1198.

DIFTERA FROM FUEETO BICO—COQUILLETT. 259

Family

SEPSID^.

SEPSIS INSULARIS

Williston.

Twenty-eightspecimens,collected atAguadilla,

Mayaguez, Bayamon, and Utuado

in

January and

Fajardo

and

Vieques Islandin February.

The

species

was

originally describedfrom St.Vincent,

West

Indies.

Family EPHYDRID^.

NOTIPHILA VIRGATA,

newspecies.

Male

: Black,the greater part of theantennae, palpi, ajjex of probos-

cis,halteres,

and

middle

and

hind tibiae

and

theirtarsi,yellow,thefront tibite

and

tarsi,brown, theirbases sometimes yellowish,the other tibiae

changing into brownish toward their apices; front opaque, yellowish graypruinose, a black spot between the ocelli, extending

downward

about halfwaytoloweredgeofthefront,

and

a short distanceon either sideof thisspotisa black vitta

which

extendsacross the front

and

is

greatlydilated at its lower end; face yellow pruinose, bearingoneor

two

lateralpairsofmacrochaeta?onthelowerpart; thoraxoiDaque,gray pruinose,

mesonotum marked

with fiveblackvittae, all,with the excep- tion of the outer pair, extending entirely across it, the

median

one

l)osteriorlyforked, each fork uniting with the adjacentvitta, the outer pair ofvittaeconsiderablyabbreviated anteriorly; a

brown

vitta on the upper part of thepleura

and two

converging ones almost crossing the scutellum;

abdomen

opaque, graypruinose, a pair of large black spots onthefrontpart ofsegments2, 3,

and

5,eachspotatitsinner side cross- ing the segment, the pair on segment 5 slightly polished; the gray portionsare

marked

with several black dots; fourth segment

marked

with a transverse

row

of four black, triangular spots besides several black dots; wingsgrayish hyaline. Length, 3.5

mm.

Sixmale speci- mens, taken at

Utuado and Bayamon

in January,

and

Arroyo

and

ViequesIsland inFebruary.

Type.—

Cat.Ko. 4376, U.S.l^.M.

PARALIMNA DECIPIENS

Loew.

Three specimens, collected at

Utuado and Mayaguez

in January.

Thisspecies

was

originallydescribed fromTexas,

and

it alsooccursin Georgia

and

Florida.

PARALIMNA OBSCURA

^Williston.

Two

Specimens, takenat

Bayamon

iu

January and

Fajardo in Feb- ruary. Originally described from St. Vincent,

West

Indies, ithas also beenreportedfrom Brazil.

260 PROCEEDINGS OF THE NATIONAL MUSEUM.

^vol.xxii.

ILYTHEA OSCITANS

Walker.

A

^{single specimen, captured at}

^Utuado

^{in January. This species}

was

originally describedfromtheUnited States, without

any

mention ofthe exactlocality. I have

examined

a specimen capturedin Massa- chusetts,forming a part of Dr.

Garry

de K. Hough's collection.

ILYTHEA FLAVIPES

Williston.

Four

specimens, captured at

Utuado and Bayamon

inJanuary. It

was

^{originallydescribed from St. Vincent,}

West

Indies,

and

has also beenreportedfrom RioJaneiro, Brazil.

ATHYROGLOSSA NITIDA

^Williston.

Threespecimens, takenatFajardo

and

Vieques Islandin February.

This species

was

also originallydescribed fromSt. Vincent.

PSILOPA ACICULATA

Loew.

Forty-seven specimens, collected at Utuado, Mayaguez,

Bayamon, and

Aguadilla in January,

and

Arroyo, Fajardo, and Vieques Island inFebruary. Originally describedfrom Cuba,ithasalsobeenreported fromSt. Vincent

and Grenada

islands,

and

from Eio Janeiro, Brazil.

Ihave studiedspecimens collected inGeorgia

and

Louisiana, forming part^of thecollection of Dr.

Hough.

PSILOPA NIGRIMANA

Williston.

Four

specimens,collectedat

Utuado and Bayamon

^inJanuary. Orig- inallydescribedfrom St.Vincent,West^Indies,ithasalso beenreported from Brazil.

PSILOPA MELLIPES,

newspecies.

Male and

female:

Body and head

polished,black orbronzegreen; in thelattercase usually with a strong violaceous tinge; antenniebrown, elongated, the third ^joint from

two

to almost three times as long as wide; asinglemacrochietanear eachlower corner of theface; probos- cisbrown,theapexyellow, palpibrown; thorax bearing asingle pairof dorso-central macrochaetae; fourth

segment

of

abdomen

the longest

—

abouttwiceaslong as thefifth inthe male,but onlyone

and

one-fourth times in the female; halteres

and

legs, including the coxae, yellow;

wingshyaline; apexofsecondvein

midway

between apices ofthefirst

and

third veins. Length, 1 to 1.5

mm. Four

specimens, collected at

Utuado

in January

and Arroyo

in February.

Type.—

Gut. No. 4377, U.S.N.M.

ALLOTRICHOMA ABDOMINALIS

^Williston.

A

^{single specimen, taken at}

^Utuado

^{in January. It}

^was

^originally

describedfrom St. Vincent,

West

Indies,

and

has also been reported from Brazil.

N0.1198.

DIPTEBA FROM PUERTO RICO—

COQUILLETT.

261 DISCOCERINA PARVA

Loew.

Six specimens, taken atAgaadilla in

January and Arroyo and

Vie- ques Island in February. This species

was

^originallydescribedfrom the District of Columbia,

and

the U. S. National

Museum

contains a specimen captured at

Lake Worth,

Florida,

by

Mrs. A. T. Slosson.

DISCOCERINA LEUCOPROCTA

Loew.

Eleven specimens, from Utuado,

Mayaguez, and

Aguadillain Janu- ary

and

Arroyo, Fajardo,

and

Vieques Island in February. It

was

originallydescribed from Maryland.

HYDRELLIA GILVIPES,

newspecies.

Male: Black, the greater part of the antennae,

median

vittaon the face,the cheeks, palpi,

and

legs,including thefronttarsi, yellow,

knob

of the halteres whitish; front opaque, dark gray pruinose,the lower corners

brown;

face

and

cheeks yellowish-gray iDruinose; a

row

of about seven shortbristlesextending fromthe lowerpart of the faceto the occiput, crossing thecheek near the eye; third joint of antennae oval, onlyslightly longer than broad; thorax

and

scutellum opaque, grayish-brown pruinose, thaton the pleura light gray;

two

pairs of dorso-central macrochsetse,

no

bristly hairs between them;

abdomen

polished, the center of thesecond

segment and

posterior

margin

ofthe third yellowishgraypruinose; fourth

segment

longer than

any

of the others, aboutone

and

^one-third times as long as thefifth; wings yel- lowish hyaline, the apex of the secondvein nearly

midway

between the apices of the first

and

third veins. Length, 1.2

mm. A

^single

specimen, collectedat

Bayamon

ⁱⁿJanuary.

Type.—G3it.No. 4378, TJ.S.N.M.

PTILOMYIA,

nevvT

genus.

Second joint of antennnebearing ashort,forwardly directedmacro- chsetaatits anteriorupper angle,the third joint shorter than broad, roundedatthe apex,aristabearing aboutsixlongbristles ontheupper side

and

with aboutthree shorteronesonthelower side; front slightly contracted at the lower end,

two

pairs of vertical bristles

and two

fronto-orbitals,theupperpair of thelatterdirectedbackward,thelower oneforward,ocellar bristleslocated higher than thelowestocellus; no postverticalbristles, frontdestituteofbristles otherthan those above mentioned;

head

in profileformingnearly

an

equilateral, acute-angled triangle, face convex, not retreating at the oral margin, bearing a transverse

row

of about six macrochaitse a short distance above the oral

margin and

with

two on

each side of the face near the middle;

cheeks aboutone-tenth aswideas the eyeheight, each bearing a stout macrocheeta nearitscenter,clypeus hidden,

mouth

opening very^large, proboscis excessively large, enlarging outwardly, palpi slender

and

nearly linear; eyesbare; auxiliaryvein obsoleteapically,secondbasal

262 PBOCEEDINGS OF THE NATIONAL MUSEUM.

^vol.xxii.

cell united with the discal, anal cell wanting^costal vein extending

beyond

theapexof the fourth vein; legs destitute of stoutmacrochsetse.

Type, the following species:

PTILOMYIA ENIGMA,

new species.

Female

^: Black, the lowersideofthethirdantenna! joint

and

bases of tarsi yellow, halteres yellowish white; head, thorax,

and

scutellum opaque, dark-gray pruinose,

abdomen

slightly polished, very thinly brownish pruinose,ovate,

composed

ofsixsegments,the first

and

sixth very short,the others subequal in length, each about three times as long as the sixth; wings whitishhyaline, firstvein extending slightly

beyond

the smallcrossveiu,apexofsecondveinslightlynearer toapex of first than to tipof third vein, first posterior cell slightlywidening towarditsapex, lastsection ofthe fourth vein nearlyone

and

one-half timesaslongasthepenultimate section,hind crossveinslightlyshorter than the last section of the fifth vein. Length, 0.9

mm. A

single specimen, collected at

Bayamon

in January.

Type.—Gd^t. No.4379, U.S.IST.M.

Family DEOSOPHILID^.

STENOMICRA, new genus.

Wings

narrow, oblanceolate, the aluhe wanting, the posterior

margin

of the

wing

convex from base to apex, firstveinreaching onlyto the branching of the second

and

third veins, small crossvein

midway between

thisbranching

and

the hind crossvein,the latter abouteight timesits

own

lengthfromtheapexofthefifthvein,penultimate section of the fourth vein about one-eighth as long as the last section,first posterior cell narrowed at its apex, second basal cell unitedwith the discal, anal cell present, tip of second vein nearly

midway

between the apices of the first

and

third veins,costal vein prolonged

beyond

theapexofthe fourth vein; ocelli situatednear the center of thefront,

two

pairsof vertical bristles

and

onefronto-orbital,thelattersituated belowthe middle of the orbits, no ocellar nor postvertical bristles;

second^jointofantennse bearing ashort,forwardly directedmacrochtfta near theupper outercorner,thethird jointbroader thanlong,rounded atthe apex, aristabearing several long bristles on theupper side

and

with afewshorteronesonthe lowerside; faceinprofileslightlyconcave, projectingforward at the oral margin, vibrisste distinct;

mesonotum

destitute of short bristly hairs,bearing two pairs of dorsocentral

niacrochiiettTe, scutellum with a single pair; tibiai destitute of a pre- ax)ical bristle. Type, the following species:

STENOMICRA ANGUSTATA,

newspecies.

Head and

its

members

yellow, the front

and

occiput opaque, thinly whitish ])ruinose, an ocellar dot black;

mesonotum and

scutellum

NO.1198.

DIPTEUA FROM PUERTO RICO—COQUILLETT. 263

browD, opaque, densely whitish pruinose; pleura, halteres, legs,

and abdomen

yellow,the latterin thefemale brownish ateach end, in the male

brown

onthethird

and

fourth segments; wingshyaline. Length, 1

mm. Two

specimens, collected at

Bayamon and

TJtuadoin January.

Type.—

Gat. No. 4380, U.S.N.M.

CLADOCH^ETA, new genus.

Antenntie projecting obliquelyforwardand

downward,

nearly perpen- dicular, almost as long as theface,the second joint bearing a nearly erect macrochtctaatthe middleof the upper side

and

with a smaller, forwardly directed oneatthe anterior upperangle; third joint scarcely longerthan the second, as wideas long, the arista insertednear its base, bare, nearthe base of theupper side bearing a single bristle

which

is almost half as long as the arista proper; front bearing

two

pairs of vertical bristles, one pair of postvertical

and

oneof ocellar,

two

pairs of orbital bristles, placed one behind the other, the lower pair only slightlybelow themiddleofthefront

and

directed forward, the other pair directed

outward and

backward, a very small back- wardlydirected one betweenthe lowerone

and

theeye;on eachsideof themiddleofthelowerhalf of the front are four orfivepairs of short bristles directed inward; head atlower part longerthan atinsertionof antennae; face in profile strongly concave, vibrissas well developed;

eyes nearly bare, slightly higherthan long; cheeks about one-ninth aswideas height of eye, proboscis short, very robust, palpi clavate;

legsrather short

and

slender,nearlybare, each tibia bearing an erect preapicalbristleonthe outerside,frontfemorabearing a

row

ofbristles on theupper

and

undersides; auxiliaryveinbecomingobsolete

bejond

its middle, first vein scarcely reaching

beyond

thefirst fifth of the length of thewing, apexofsecond veinover twice asfarfrom theapex ofthefirstvein asfromthetipof thethird, the latter at the extreme wing-tip,fourth vein outwardly diverging from the third, hind cross- vein slightly

more

thanits

own

length fromthe apex of the fifth vein, small crossveinslightly before the middle of the discal cell

and

far

beyond

theapexofthefirstvein,penultimatesectionofthe fourth vein only slightly

more

thanhalf as long as the last section, second basal cell united with the discal, analcellpresent, the sixth vein not pro- longed

beyond

theapex ofthelatter. Type, the following si^ecies

:

CLADOCHAETA NEBULOSA,

newspecies.

Male and

female:

Head

opaque, yellow, thefront, except theorbits,

brownish yellow, ocellar dotbrown,eyesbrownishred,

antenn*

brown, the first

two

joints yellow, palpi

and

proboscis yellow; thorax dark yellow, subopaque, thinly gray pruinose,

two

pairs of dorsocentral macrochsetfe, the bristlybairs between

them numerous and

not dis- tinctly arrangedinrows; threepairsof supra-alarbristles, one pr.esu- tural,two posthumeral, one humeral,

and two

sternoplural; scutellum dark yellow, the

margin

lighter, bare except for the four marginal

264 PROCEEDINGS OF THE NATIONAL MUSEUM.

^vol.xxii,

macroolisetse;

abdomen

reddishbrown,

somewhat

i^olished; wingsgray- ish, the costal margin to alittle

beyond

thethird vein

smoky

brown, darkest in apex of the marginal cell, both crossveins clouded with brown; thecostalveinextendsto theapexofthe fourth vein; legs

and

halterespaleyellow. Length,!to1.2

mm. One

male

and

fourfemales collected at

Bayamon, Mayaguez, and

AguadillainJanuary,

and Arroyo and

ViequesIsland inFebruary. Also,a ^single specimen collected at Motzorongo, Mexico, in January, ^1892,

by

Prof. Herbert Osborn.

Ttjpe.—Gat. No.4381, U.S.N.M.

DROSOPHILA FUNEBRIS

Fallen.

Eleven specimens, captured at

Bayamon,

Mayaguez,

and

TJtuado in January.

A ^European

^species, which also occurs over the greater portion ofthe United States.

DROSOPHILA VITTATA

Coquillett.

A

^{single specimen,} captured at

Arroyo

in February.

The

type localityofthis speciesis CharlotteHarbor, Florida.

DROSOPHILA FUSCA,

new species.

Brown,

the halteres

and

legs, including the coxse, yellow; front slightly ijolished, destitute of short hairs, not pruinose,

two

pairs of orbital bristles, one placed in front of the other;

body

noticeably polished, notpruinose,

two

i)airsofdorsocentralmacrochsetae,the short bristlyhairsbetween theuinot disposedin rows; wings hyaline, apex of second vein nearly twice asfar from the apex of the first as from that ofthe third vein; last sectionof the fourth vein almost twice as long as the preceding section; last section of fifth vein two-thirds as long_as thepenultimatesectionofthefourth; costalvein prolongedto the apex of the fourthvein. Length, 1

mm. A

^{single specimen, col-}

lected at

Utuado

inJanuary.

Type.—Gskt.No. 4382, U.S.N.M.

Family GEOMYZID^.

ANTHOMYZA NIGRIMANA,

new species.

Frontal triangle ])olished black, reaching almost to thelowerend of thefront

and

tillingthe spacebetween thefrontalorbits,thelatter, on theupperportionto the single pair of fronto-orbitalbristles, polished black,remainder offrontopaque,brown,thelower corners yellow; face lessthanone-fourth asbroad as the front at its middle, yellow; first

two

jointsofantennasbrownishyellow,the third yellowish white,arista brown,greatlythickened atthebase,rather densely

and

longplumose;

proboscis yellow,palpibrown, occiput

and body

ijolishedblack; legs, including the coxa?,yellow,thefront tibi;y

and

firstthreejointsoftheir

NO.1198.

DIPTERA FEOM PUERTO RICO—

COQUILLETT.

265

tarsiblack; wings hyaline,haltereswhitish,theknobslongerthanthe stems. Length, 1.2

mm.

Three specimens, collected at

Utuado and Mayaguez

ⁱⁿ January.

Type.—

Gd.t. No.4383, U.S.N.M.

Family OSCmiD^.

GAURAX LANCIFER,

new species.

Yellow,the antennal arista, an ocellar dot, a

somewhat

lanceolate spotonthe posterior half of the

mesonotum,

an oval spot onthe pos- teriorlower corner of the mesopleura, usually one onthe lower part of the pteropleura,

and

the

dorsum

of the

abdomen

except atits base, black;

mesonotum

polished,

marked

with three reddish-yellow vittse,

scutellum inoutlinenearly triangular; wingshyaline. Length, 1.5to2

mm.

Eight specimens were bred in February fromlarvaeinfestingthe egg-sacs of a spider at

San

Juan. Also, five specimens, bred

by

Mr.

H. G.

Hubbard, March

16, 1894,from larvae infesting the egg-sacs of a spider atMontserrat,

West

Indies.

Type.—

Cat. No.4384,U.S.N.M.

HIPPELATES CONVEXUS

Loew.

Thirty-four specimens,collectedat

Mayaguez, Bayamon,

TJtuado,

and

Aguadilla in January,

and

Fajardo, Arroyo,

and

Vieques Island in February.

The

species

was

originally described from Cuba, butalso occurs in the southern portion of the United States

and

in Mexico.

Three specimens from the last-named country werecollected April 10, 1898,

by

Dr. L. O.

Howard,

at

San

Jose de

Guaymas.

HIPPELATES PUSIO

Loew.

Eighteen specimens, from

Mayaguez, Bayamon, and

Aguadilla in January,

and

Fajardo

and Arroyo

in February. It

was

^originally described from Texas, but ranges as far northward as

New

Bedford, Massachusetts.

HIPPELATES FLAVIPES

Loew.

Five specimens,from Fajardo

and

Vieques Island inFebruary.

The

species

was

originallydescribedfrom Cuba, but occursin this country as farnorthward as Franconia,

New Hampshire

; this appearsto bethe mostnorthernlimitof

any

species belongingtothepresent genus.

The

specimens from St. Vincent,

West

Indies, which Dr. Willistou refers to H. Jiavipes, evidently belong to

some

other species, since flavipes belongs to his

own

subgenus Siphomyia, whereas hereferred his speci-

mens

to Hippelates as restricted.

HIPPELATES TENER,

newspecies.

Head

reddishyellow,thesidesof thevertexbrown,theocciput,except thelower portion,black; frontal triangle polished dark brown, widely

266 PROCEEDINGS OF THE NATIONAL MUSEVM.

^voL.xxn.

separatedfromthe eyes and'reaching abouttothe middle ofthefront,

rounded below, front outside of the triangle sparsely covered with bristly hairs; antennee yellow,upper edge and apex of thethird joint black, arista darkbrown; palpi

and

proboscisyellow, apical portion of thelatter black, labella slender,folded back;

meson

otura dark brown,

somewhat

polished,but sparsely covered with an appressed yellowish tomeutum, onepair ofsmall dorsocentralmacrochsetse,thebristly hairs notarrangedinrows_; pleura reddishyellow,a

brown

spotonthesterno- pleura

and

another abovethehindcoxse; scutellumyellow,

metanotum and abdomen

polished

brown

^; legsyellow

and

brownish, bases oftarsi yellow; wingshyaline; halteres yellowish white. Length,1.5

mm.

Six specimens,collected at

Utuado

in January,

and

Fajardoin February.

Type.—

Cat.No.4385, U.S.K.M.

OSCINIS ANONYMA

^Williston.

Forty-nine specimens,collected at

Mayaguez, Bayamon,

Utuado,

and

Aguadilla in January,

and

Fajardo, Arroyo,

and

Vieques Island in February. Originally describedfrom St. Vincent,

West

Indies.

OSCINIS VIRGATA

Coquillett.

Seven specimens,from

Bayamon,

Utuado,

and

Aguadilla inJanuary,

and

ViequesIslandin February.

The

species

was

originallydescribed from Colorado.

OSCINIS QUADRILINEATA

Williston.

Three specimens,taken at

Bayamon and Mayaguez

in January,

and

Fajardo in February. Originally described from St. Vincent,

West

Indies.

OSCINIS OBSCURA,

new species.

Black, the labella, halteres, under side of the abdomen, apices of femora,front

and

middle tibiae, both ends of the hind ones,

and

the tarsiexcept at their apices,yellow; baseof

abdomen

sometimesyellow- ish_; frontal triangle polished, almost touching the eyes at the vertex, reaching the lowestthird of thefront; labella slender, pointed, folded back;

mesonotum and

scutellum

somewhat

opaque, thinly brownish pruinose, nodorsocentral macrochsetae, pleura

and abdomen

polished;

wings hyaline,apex^ofthesecond vein

midway

between the apices of the first

and

third. Length, 1 to 1.5

mm.

Seventeen specimens, col- lected at Mayaguez,

Bayamon, and Utuado

in January,

and

Vieques Islandin February.

Type.~Gat. No. 4386, U.S.N.M.

OSCINIS COXENDIX

^Fitch.

Ten

specimens, from Mayaguez,

Bayamon, and Utuado

in January,

and

Fajardoin February. This species also occurs from

New Hamp-

shire to Florida,

and

westward toColorado.

NO.1198.

DIPTEEA FEOM PVERTO EICO—COQUILLETT. 267 OSCINIS NANA

Williston.

Mne

^{specimens, collected at}

^Mayaguez,

^Utuado,

^and

Aguadilla in January,

and Arroyo and

Vieques Island iu February. Originally describedfrom St.Vincent,

West

Indies.

OSCINIS UMBROSA

Loew.

Ninespecimens, taken at

Mayaguez, Bayamon,

Utuado,

and

i^gua- dillain January. This species

was

^originally describedfrom Pennsyl- vania,

and

the IT. S. National

Museum

contains specimens collected in theDistrict of Columbia

and

Indiana.

CHLOROPS TRIVITTATA

Williston.

A

^{single specimen, captured at}

^Arroyo

ⁱⁿ February.

The

species

was

originallyreportedfrom St. Vincent,

West

Indies.

SIGALOESSA BICOLOR

Loew.

One

specimen, taken at Fajardo in February.

The

type localityof this speciesis Cuba.

Family AGROMYZID.F.

DESMOMETOPA HALTERALIS,

new species.

Black, thebases of thetarsiyellow,a yellow spotbetween the anten-

n* and

a denselygraypruinoseone onthelower edgeoftheface^; front whollypolished,proboscis slender,horny, thelabellanearly as long as the proboscis proper

and

foldedback; thorax

and

scutellum polished,

two

pairsof dorsocentralmacrochretfie;

abdomen

subopaque, the sides

and

thefifth

and

following segmentspolished; wingswhite,costal

and

first veins yellow, the others white, first posterior cell narrowed at itsapex. Length,2to 2.5

mm. A

^singlespecimencaxjtured at

Utuado

inJanuary; also seven specimens, collected at

New

Bedford, Massa- chusetts (Dr.

Garry

de N. Hough),

Lake

Worth, Florida (Mrs.A. T.

Slosson),

New

Mexico (Prof. T. D. A. Cockerell),

and

Colorado (Mr.

Carl F. Baker).

Tj/2)e.—Cat. No. 4387, U.S.N.M.

AGROMYZA ^NEIVENTRIS

Fallen.

Nine

specimens, collected at Utuado,

Bayamou,

Aguadilla,

and Mayaguez

in January,

and

Fajardo in February. Thisis a

European

species

which

also occursover the greater portion of theUnited States.

AGROMYZA NEPTIS

Loew.

Two

specimens, from Aguadilla

and Mayaguez

in January. This si)ecies

was

originally described from Nebraska; the U. S. National

Museum

containsspecimensfromseveralother localities,ranging from Massachusetts toFlorida

and

Texas.

268 PROCEEDINGS OF THE NATIONAL MUSEUM.

^voL.xxn.

AGROMYZA SETOSA

Loew.

A

^{single specimen, captured at}

^Utuado

^{in January. This species}

was

originallyreportedfrom the Districtof Columbia, butoccurs over the greater portion of theUnitedStates.

AGROMYZA JUCUNDA

van derWulp.

Two

specimens, collected at

Utuado and Mayaguez

in January.

Originallyreportedfrom Wisconsin, but

now

foundinnearlyeveryState in thiscountry,

and

Williston reportsitfrom St.Yincent,

West

Indies, describingit asa supposed

new

species under the

name

of

Agromyza

lateralis^

new

species.

The

latter

name was

used

by Macquart

for a

European

^speciesas long ago as the year^1835.i

AGROMYZA DIMINUTA

Walker.

A

^{single specimen, captured at Fajardo in February. This species}

was

^{originallyreported fromthe United States}without mention of

any more

definite locality. It is found over the greater portion of our country.

LOBIOPTERA INDECORA

Loew.

A

single sj)ecimen, collected on ViequesIsland inFebruary. Origi- nallyreportedfromlli^Iebraska, italso occursinthe eastern part of this country,ranging from

New Hampshire

to Georgia.

OPHTHALMOMYIA LACTEIPENNIS

Loew.

One

specimen, collected at

Bayamon

ⁱⁿ January.

The

typelocality ofthisspeciesisCuba, but specimensarein

theU.

S.National

Museum which

werecollected at different points in thiscountry,ranging from theDistrictof

Columbia

to Florida,

and westward

to

New

Mexico; it

hasalsobeen reportedfrom St. Yincent,

West

Indies.

OPHTHALMOMYIA CINEREA,

new species.

Head

black, opaque, gray pruinose, autennse black, the lower por- tion of the base of the thirdjoint yellowish, palpi yellow, proboscis black, thelabellayellowish,ratherrobust,

and

only slightly prolonged;

thorax

and

scutellumblack,opaque,graypruinose,

mesonotum marked

with five black vittte,of which the

median

one is prolonged almost across the scutellum,bristly hairsof

mesonotum

arising from minute blackdots, front

end and

lowerportion of thej)leura almost destitute of the gray pruinosity;

abdomen

subopaque, brownish black; legs brownishblack,haltereslight yellow,wingswhitish,thecostal

and

first

veins yellowish,the otherswhite. Length,1.5

mm. A

singlespecimen, collected at

Bayamon

^{in January.}

^Although

^{aberrantinits}markings, this speciespossesses all of theimi)ortaut structural characters of the preceding.

Ti/i^e.—Cat. No.4388, U.S.N.M.

'Hist.Nat. desIns.,Dipt.,II,p.609.

NO.1198.

DIPTERA FROM PUERTO EICO—COQUILLETT. 269 CERATOMYZA DORSALIS

Loew.

Two

specimens,collected at

Arroyo and

YiequesIslandinFebruary.

This species

was

^originally reported from the District of Columbia, butoccurs over the greater portion of this country, extending as far

westward

as Colorado.

LEUCOPIS BELLA

Loew.

Three specimens, bred February2, fromlarvsepreying

upon

Dactyl- opius eitri on Culebra Island. Originally described from Cuba, but havingawidedistribution, extending from IsTova Scotia to California

and

Mexico.

Family

BORBORID^.

LIMOSINA FONTINALIS

Fallen.

Mneteen

specimens, from

Bayamon,

Utuado,

and Mayaguez

inJan- uary,

and Arroyo and

FajardoⁱⁿFebruary.

A European

species,which also occurs in the District of

Columbia and

has been reported from Florida

by

Mr.C.

W.

Johnson.

LIMOSINA VENALICIUS

Osten Sacken.

Two

specimens, collected at

Utuado

in January. This species

was

originally describedfrom Cuba, butalso occursatBiscayne Bay, Flor- ida,

and

has beenreportedfrom St.Vincent,

West

Indies, Brazil,

and

Africa. Osten

Sacken

referred it to the genus Borhoriis, in which genusitisretained

by

Williston,butit is atypicalLimosina, asisalso theBorhorus illotusofWilliston.

LIMOSINA LUGUBRIS

^Williston.

Two

specimens, taken atAguadilla

and Utuado

in January. This species

was

originallyreportedfrom St. Vincent,

West

^Indies.

LIMOSINA PERPARVA

^Williston.

Threespecimens,collected at

Mayaguez and Utuado

in

January and

CulebraIslandin February. This species

was

alsooriginallyreported from St. Vincent.

Family

HIPPOBOSCID^E.

ORNITHOMYIA ERYTHROCEPHALA

^Leach.

Eightspecimens, captured on a sparrow

hawk

at Adjunctosin Jan- uary; also asingle specimen,collected at CulebraIsland inFebruary.

This species

was

originallydescribed from Brazil, but occurs over a large portionofthe

Western

Continent,having beenreported

by

Osten Sacken as occurring as farnorthwardas Quebec, Canada.

270 PROCEEDINGS OF THE NATIONAL MUSEUM.

^vol.xxii.

Family

NYCTERIBID^.

TRICHOBIUS DUGESII

Townsend.

Sixty-

two

si^ecimens, collected on bats iu acave near

Bayamon

in January.

The

species

was

^originallydescribed from Mexico,

and

the

TJ.S. National

Museum

contains specimens collected

by

Mr. H. F.

Wickham

at Tucson, Arizona,

and by

Mr. H. G.

Hubbard

near Kingston, Jamaica.

ASPIDOPTERA BUSCKII

Coquillett.

A

^{singlespecimen} representing this genus

and

species

was

collected withthepreceding specimens.

PTERELLIPSIS ARANEA

Coquillett.

Twenty-three specimens, collectedwith the preceding. This species

was

originallyreportedfrom

Jamaica and

Montserrat,

West

Indies.