BIOLOGICAL SOCIETY WASHINGTON WITH DE

Vol. XIX, ^pp. 159-172

November

_12, 1906

PROCEEDINGS

OF THE

BIOLOGICAL SOCIETY OF WASHINGTON

NOTES ON SOME AMERICAN _MOSQUITOES WITH DE- SCRIPTIONS OF NEW SPECIES.

BY HARRISON

G.

DYAR AND FREDERICK KNAB.

The

_following

_paper

is

a continuation

ofthe subject

presented

in this

Journal

(Proc. Biol.

Soc, Wash.,

xix,

133-142). Con- tinued

studies

and

the receipt ^of

new material have made a number

of

matters worthy

^{of record.}

As

in

our previous paper, the

first locality

mentioned

in the description ^of

new

_species

may be considered

the

type

locality.

Genus ANOPHELES

Mkigen.

Anopheles quadrimaculatus

Say.

Anopheles quadrimaculatus Saj% Keating's^narr.St. Peters River,ii,356, 1824.

Anopheles guttulalusHarris,^{Cat. Ins.}Mass.,^1833.

Anopheles annulimanus vander

Wulp,

Tijd. voor_{Ent., x, 127, 1867.}

Anopheles ^iralkeriTheobald,

Mon.

_{Culic,i, 199, 1901.}

This species^isclearlynotintroducedfrom Europe,

and we

thinkshould notbeconsidered the

same

asthe

European

maculipennis

Meigen

^without

rigidproof.

We

^areunableto

make

the comparison,havingneither adults norlarvaeofthe

European

species. Theobald's comparison^{of adults}(Mon.

Culic,i,194, 1901),^is inconclusive,especially without exact examination oflarvae.

We

therefore provisionally eliminate the

European names

^from the

synonymy. Our

_{speciesrangesthroughout}the eastern United_States, from

New Hampshire and

^{OntariotoFlorida}

and

Texas.

We

haveitalso from Cuba. Westernlocalitiesshould be discredited. Occasional_speci-

mens

have the black wing-spots ^{indistinct or} absent.

We

believe that suchspecimens werethebasisof the recordsofthe

European

^A.bifurcaius Linn, inAmerica andofTheobald's A.vxdkeri.

Anopheles

occidentalis sp.nov.

Tiioraxwith a broaddorsal pale lilaceous band,^cut

by

^threenarrow

brown

_stripes; abroadlateral

brown band

; pleurapale,withthree

brown

stripes;

abdomen,

legs

and

_palpidark brown.

Wings

^{with thescalesof} the veins forming ^four black spots as in A. qnadrimaoilalus, hut rather

more

rounded

and

contrasted.

32—Proc.Biol. Soc. Wash., Vol. XIX, ^1906. (159)

160 Dyar ^and Knab — Some American

Mosquitoes.

118 specimens, Stanford University, California ^(IsabelMcCracken); San Diego, Sissons

and

_Thrall,California(Dyar

&

Caudell)^; Portland,Oregon (R. P. Carrie) ; Revelstoke, B.^C. (H. G.Dyar)^; Boise, Idaho (J.

M.

Aid- rich)^; Lehi,

Utah

(\V. A.Hooker).

Ti/pe.—^Cat.No. _10,028, U.S.Nat.Mus.

Anopheles

atropos sp. nov.

Deep

^black;thoraxobscurely linedwithviolaceous, especially posteiiorly.

Head,

abdomen and

_{legs black,}

no

_markings

on

the_pleurae. AVing^scales outstanding, uniform, notformingspots,though^{alittlethickeratthe usual} points, indicating thespottings.

Allied toA. qiiadrimacalatus Say,butrather smaller,

and

_deepblack, not brown,^the

abdomen

withouttracesofthe_lighterbandings.

Sevenspecimens, Florida

Keys

(Dr.

Hiram

_Byrd).

Type.—VM.

^No.10,029, U. ^S.Nat. Mus.

Anopheles

^bellator sp.nov.

Palpi black^; head _black,atuftof pale^scalesbetweenthe_eyes. Thorax- gray,with four black longitudinal lines,thetwonearest themiddlenar- rower

and

stopping short of thebase, the two lateral ones attaining the scutellum; before scutellum a short

median

blackline; pleurae dark,with

two

whitestripes.

Abdomen

entirelydark. Costa of

wing

^{with sixwhite}

spots,one_basal,the last atextreme apex^; third vein white, with a black spot^at

apex and

^{nearbase; fifthvein white nearbase}

and

atbase of the fork,

and

a smallwhitespoton upper branch^; fringewith two white_spots, at lower fork of fourth vein

and

_upper fork of fifth vein respectively.

Front_legs with thefemora witha black spotat base,ablack dashatmid- dle third

and

twoblack_{spots at}

apex

^{; tibiaedark}above,with twoblack, nearlyencircling, spots atapex; firsttarsal jointwithablack ring near the V)ase,second

and

third _joints black at the _base, fourth

and

fifth entirely black.

Mid

_legswith thefemora mostlyblack; tibiae black,white_{at tip};

firsttarsal jointblack,whiteat_"tip^: secondblackat base, apicalhalf white;

third

and

fourth _joints black,white_{at tip;} fifth black.

Hind

_legswith femorawhite, blackabove,with a black ring ^at the outer third; tibiae black above witli two black _rings toward

apex

^{; first} tarsal jointblack, with a white _apical ring

and

white at extreme base; second, third

and

fourth_jointsblack,with white_apicalring; fifthjointblack.

Threespecimens, Trinidad, ^B.

W.

I.(F.

W.

Urich; A. Busck).

Tupe.—Qai. No. 10,027,U.S.Nat. Mus.

Near

A.lutz'd Cruz,but differs in the coloration of the palpi

and

_legs.

According^{toDr. Lutz,}A. lutz'dwasfirstdescribed

by

^Dr.

Oswald

Cruzin theBrazilMedico. Theobald redescribesitasa

new

_species;butitshould

be

creditedtoCruz.

Anopheles

tarsimaculata Goeldi.

Anophelestarsi-maculalaGoeldi,^Os.Mosq.

no

Para,133, 1905.

Goeldiproposed^this

name

asasubstitute for_alhipc.^ Theobald, because

he

did notlikethename.

The

_specimensbefore him, from Para,Brazil, are, however,not properlyreferable to_alblpex,

which

^is

synonymous

^with

Dyar ^and Knob — Some American

Mosquitoes.

161

albimdniis

Wiedemann.

Neitherarethey referable toarjrJ/ntarsisRobineau- Desvoidy,^of

which

theyare treated as a variety

by

Goeldi,nortoalbitar- .tus Lynch-Arribfilzaoa,

which

is anotherdistinct species, as Arribulzaga's figureshows.

The

_form,

which

^isclose toalbiinniius, differs inthecolora- tionof the _palpi,which have

much more

ofwhite. Goeldi's

name may

thereforebe used for this form.

Our

_specimens arefrom Sao Paulo

and

Manaos,Brazil,

and

_Trinidad,B.

W.

I.

Genus JANTHINOSOMA

Lynch-Arrib.4lzaga.

Janthinosoma

vanhalli

Dyar & Knab.

Cnlex albitarsis Neveu-Lemaire _(not Theobald), Archiv. de _Parasit.,vi,

10,1902.

Janthinosomavanhalli

Dyar & _Knab,

Proc. Biol. Soc.Wash.,xix, 134, 1906.

We

quote^theabove

synonymy.

^{C.albitarsisTheob.is}

an

African_species.

Janthinosoma

_posticatus

Wiedemann.

Culex_posticalus

Wiedemann,

Dipt.Exot.1,43, 1821.

Jaidhinosomaechinata

Grabham,

^Can.Ent.,xxxviii,311, 1900.

The

formof Janthinosoma _occurring inMexico,^CentralAmerica,^Tiini- dad, Santo

Domingo,

^{Jamaica to} Brazil,with the hind _legs with raised scales,thoraxallgoldenyellow scaled

and

theabdominal segments below

banded

with blue-black_{at base,}seemstobe uniform throughout^itsrange.

Itisthe Culex_posticatusof

Wiedemann and

isadifferent speciesfromJan- thinosoma _sayi

Dyar & Knab

{Culex musicus Say) of the United States.

AVe

have compared

^{larvae ofechinata received from Dr.}

Grabham

with onesfrom

Mexico

collected

by

the juniorauthor

and

find

them

identical.

The

larvaediffersfrom _{sayi in}the

much

stouter

and more

heavilj'-spined antennae,

which

are about _{equally long.}

We

liave received apparently the

same

larvae(posticatus)from_Estero,Florida(J.B.

Van

Duzee), butthey areunbred.

Janthinosoma indoctum

_sp.nov. .

We

_propose this

name

forthe larvae called "

Janthinosomascholadicus Theob." _(Journ.N.Y._{Ent. Soc,}xiv. 182, 1906.)

The

adultsresemble_closely those of/,_infine

Dyar & Knab,

^{butdiffer inthe}ornamentationof the thorax.

In_infine thethorax is dark reddish

brown

with two white _spots onthe disk,twoat thefrontmargin,faint,

and

whitishscales onthe scutellum;

In indoctum the thorax is dull

brown

with _yellowish

and

white scales forming diff"use patches. Scholasticus Theobald ^isa true Culex. All the indoctum are from Trinidad; all theinfinefrom Santo

Domingo. The

lo- cality

"

Trinidad^"shouldbeerasedinourdescription ofinfine.

22 specimens,Trinidad_(F.

W.

_{Urich; A. Busck.)} Type.—^C&i.No._10,026,U:S.Nat.Mus.

Janthinosoma

insularius

Dyar & Knab.

Janthinosoma insularius

Dyar & _Knab,

Proc. Biol. Soc. Wash., xix, 135 1906.

The

larvae ofthis speciesare thosedescribed

and

_figured

by

^{us as"Jan-} thinosoma

pygmaea

Theob." _{(Journ. N.}Y. _{Ent. Soc,xiv, 182,1906.)}

162 Dyar ^and Knob — Some American

Mosquitoes.

Janthinosoma pygmaea

^Theobald.

Gnthhamia py<imxa Theobald,

Mon.

Culic,iii,245, 1903.

CalexnanusCoquillett,Can._Ent., xxxv, 256, 1908.

AVeare

much

indebted to Dr.

Grabham

^{for cast}skins of the larvae of this speciesfromJamaica. Itfallsinourtable (Journ. N.Y._{Ent. Soc,xiv,} 181,190(i)with^"pygmsea^" (iyisulariusD.

&

_K.),butdiffers in detail. In the true

pygmxa

there are four pecten teethonthetube,

which

reach nearly^to themiddle; the teeth are variable inshape, but

none

have_{the long}sec- ondaryspine

shown

inour_figureofinsularius.

The comb

scales

have

the central spine longer and curved at_tip. Boththe head hairs are _single.

We

haveplaced the types ofnanus_CoquillettfromFlorida

and

alarge series taken

by

^{Dr. Cotiininthe}

Bahamas

with pygvuca Theobald from Jamaica.

The

larvae,however,^{of these}mosquitoes^arestill

unknown.

Gknus AEDES

Meigen.

Aedes euplocamus Dyar & Knab.

Mr.Urich hassent us from_Trinidad,two bredspecimens, the larvae of

which

_agreewith our euplocamus(Journ.N.Y._{Ent. Soc,}xiv, 199, 1906),de- scribedfromCostaRica.

The

identificationofthe adult of the CostaRican larvaeastriviltalusCoquillettwas dueto

some

confusioninthelistreturned tous;

most

ofthe adultsare,

we

find,placedunderconjirmaiusⁱⁿthecol- lection.

The name

^"covfinnatus^"hasbeen used fora

number

ofdifferent mosquitoes

which

are similar inhaving ^alarge silverypatchonthe ante- riorpart of the thorax.

We have

_given

new names

totheformsidentified as ^''confirmotus" from theUnitedStates {Aedesⁱⁿfirmains

Dyar & _Knab,

Journ. N. Y. _{Ent. Soc, xiv, 197, 1906)}

and

Jamaica [Aedes hemisurns

Dyar & _Knab,

Journ.N.Y. _{Ent. Soc,}xiv.,199, 1906),

and we now

_identify

theTrinidad_species,

named

"conjirmaius"

by

Mr. Theobald.

It_is,of_course,possible thateuplocamus^isthe

same

asconfirmatus

Lynch-

Arribitlzaga,described from the Argentine,ⁱⁿwhich case Mr. Theobald's identification should be restored. But

we have

asyet

no

_{proof of}this.

Our

euplocamus ranges fromCostaRicatoTrinidad,^as

we now

_know%

and

itwilldoubtlessbe foundtoextendintothe_tropicsofBrazil; butwhether theArgentine form ^isthe

same

ornot can_onlybetold from

more

_perfect

collectionsthan

we

_possessat present.

Aedes

serratus Theobald.

CidexserratusTheoliald,

Mon.

Culic, ii,75,1901.

(?)Aedesmerkliovalis

Dyar& Knab,

^Journ.N.Y.Ent. Soc,xiv, 195, ^189(i.

Mr.F.

W.

Urich has sent us aspecimen bred from a small pool ⁱⁿthe forest,Trinidad,which

we

think istheCvf/ea-6-e9TohtsofTheobald,^described from Brazil

and

^Trinidad. This_specieshasbeenidentified asoccurringⁱⁿ theUnited_States,but

we have

found theretobe twospecies, differing in thelarvae.

We

have

renamed

these, callingthe Atlantic Coastone Aedes atkmtlcus,theGulf CoastoneAedesiorinenlor(Dyar^<kKnab,^Journ.N.Y.

Ent.Soc,xiv, 191, 198, 1906).

We assumed

that neither

was

conspecific with the Tropical

American

form,

and

this assum])tion ^is proven ^to be

Dyar ^and Knah — Some American

Mosquitoes.

163

correct

by

^{tlie larva before us. It falls in the table with} meridionalis, having ^{12scales inthe}

comb

fbut differs in that the pecten of thetube does not reach half the _length.

The

difference is not verymarked,

and

the larvae are otherwise

much

_{alike, so}thatitseemsnot unlikely thatour meridionalis willfallasa

synonym

^{ofserralusTheobald.}

Working

^withthe larvae alone

and

handicapped

by

^the identification of ^"Janthi^iosoma musicaSay^"

which we had

receivedforthe adults (See Journ. N.Y. Ent.

Soc,xiv, 195),the larva of the trueserralus being

unknown, we had no way

^of

knowing

^that

we had

a larva before us the

same

asornearserraius Theob.

A

bredadult(cj*) of

A

edesmeridionalis

shows

the

median

_silvery thoracic

band

of_serraius, but the specimen ^{is not} perfect

and we

await furthermaterial beforepronouncingpositively

on

the

synonymy.

Aedes

pertinax

Grabham.

Aedes pertinax

Grabham,

^Can.Ent., xxxviii.316, 1900.

Dr.

Grabham

_{has kindly}

communicated

touslarvalskins ofthis species fromJamaica. Itfallsinourtable(Journ. N.Y._{Ent. Soc,xiv, 189,1906)} withtormentor

Dyar & _Knab,

fromtheGulfcoastoftheUnited_States,but differs inthe pecten of thetube,

which

does notrunoutso_far,

and

hasthe tuft just atthelasttooth instead of well within.

Aedes

auratus

Grabham.

Aedes auratus

Grabham,

^Can. Ent.,xxxviii,313, 1906.

Dr.

Grabham

hassent usalso larvalskinsofthis

Jamaican

_species. It fallsinourtable(Journ. N.Y._{Ent. Soc,xiv, 189,1906)}under dichotomy5,

with_janitor

and

lactator. Thesespecies are _Culices,

and

_only included under Aedes from the _similarity of their modification. Auratus differs from

them

inhaving only^thesinglepair of hair^tuftsonthetube. These

tuftsareonlyjustwithin the pecten, opposite the ^lasttooth. Except^for the difference in the lateral comb,^{the larva is} very

much

like that of Aedes pertinax

Grabham.

Aedes

capricornii Lutz,

Haemagogus

capricorniiLutzin Bourroul,Mosq. doBrazil,p.4 ofkey^to speciesof Euculicidae, 1904.

StegoconopscapricorniLutz,Imprensa Medica,(sp.no. x).

Mr. Urich hassentus three males,which

we

attribute to Dr. Lutz's species capricornii.

The

descriptionappliesexcellently,except only^{as to}the_posi- tionofthelowercross-veinofthewings; ^butas

we have

_{only males}

and

Dr.

Lutz describes from _females,this

may

easilybea sexual differenceifnot simply^varietal.

We

are

much

indebtedtoDr. Lutzforcopies of thepub- licationsabovereferred _to,butareunabletoquote the^latteroneaccurately, asthe separate sent us contains neither paginationnordate.

The

"Imprensa

Medica"

isnot availablein Washington. Capricorniiwasdescribedfrom the ^"zoneofthe Tropic of Capricorn,"

which we

infer tobethe_vicinity ofRio de_Janeiro,Brazil.

The known

habitatis

now

extendedtoinclude

164

_Di/ar

and Knob — Some American

Mosquitoes.

tlieislandofTrinidad. Mr.Urichsecured the_larvae,

which

are_peculiar, Avithadensecoat of finelongpile.

They

^{fall inourtablewith} p)iilo!<op]t-

iciii<(Journ. N. Y. Ent.Sue,xiv,11)0,1906j,butdiffertherefrominthe

body

l>ileand tiie

comb

ofthe eighth segment, the^scalesof whicli are joined on abasal plate.

They

^{occurred inahollowtreeatSt.}Anns,Trinidad.

Specimens from Trinidad ^identified

by

^]\Ir.Coquillett as "

Ilaniiafiogns all.on,acii!aiusTheobald^"are apparentlythis species.

Aedes

philosophicus

Dyar & Knab.

This

name

(Journ. N. Y. Ent. Soc,xiv, 195,1906) ^isbasedonlarvaefrom IMexico

and

Salvador,which were identified as adults as "

Ilannagogus equhnisTheobald."

We

refused toaccept^this

name

as

we

couldnotfind the description. It exists, nevertheless (Entomologist, xxxvi,282, 1903);

but the circumstance proves fortunate, for the specimens were wrongly

named.

A.jiliiloaopliicus has toothed claws inthe femaleadult

and

ob- viously belongs ^to Dr. Lutz's genus S(egoco7Wj)s,

which we

are unableto recognizeas distinctfrom Aedes.

The

_specieshasfaint silverywhitebands

on

all the abdominal segments above

and

thus superficially resembles

Haemagogus

equinns Theobald, described from Jamaica; but that has simple clawsⁱⁿ the female,^asTheobald_expressly^states.

Aedes

affirmatus _sp. nov.

Shiningblue, like

Haemagogus

sphndens^Willistonbutthefemalewith the fore

and

middletarsalclaws toothed.

Head and

thoraxclothedwithmetallic bluescales,pleuraesilvery

w

hite;

abdomen

darkblue above, the^firstseg-

ment

with awhite baron each _side,below with _silverywhite segmental bands. Legsblue-black, middle

and

hind femorawith a_silverywhite_spot at_tip,themiddle femora narrowly white^lined below, the posteriorones verybroadly^{so forthebasal} three-fourths. Base offirst

submedian

cell nearer _ai)exofwing than^baseofsecond _posteriorcell.

Four

_specimens,Santa _Lucrecia, State of

Vera

_Cruz,

and

Salina Cruz, State ofOaxaca, Mexico^; Las_Loras, nearPuntarenas,

and

Rio_Aranjuez, Puntarenas, Costa Rica (F.Knab).

Tnjie.—^Cat.No. _10,023,U. S.Nat.Mus.

The

larva is

unknown.

Aedes

mediovittata Cu(jiuillett.

Stegomi/iu iiicdioriilata Coquillett,Can. _Ent., xxxviii,(50, 1900.

Gymnomeiopa

mediuvillata Coquillett, Proc. Ent.Soc.Wash.,vii,183, 1900.

Aedes medloviltula

Dyar

^i*c

Knab,

^{Journ. N.Y.} Ent. Soc,xiv, 196, 1906.

Gymnomeiopa

mediuvitluia. Coquillett, Tecli. ^ser. 11, Dept. Agr., Bureau Ent., 25, 1906.

Mr._Coquillettspecified this species as the type ^ofhis genus

Gymnome-

l(>p<(,butlaterhedefinesthegenus ^as having simple clawsⁱⁿthe female,

and

includes with mediovilktta, sexl'meala Theobald, ^albonotaia Coquillett

and

husckii Coquillett, speciesactually with such^claws. Mediovittata,

how-

ever, has toothed_{claws, so}that

Gymnomeiopa

^{will thus}

become

a

synonym

of_Aedes,the other associated speciesfalling into Haemagogus.

Dyar ^and Knab —

_Sovie

_American

Mosquitoes.

165

We

havedescribedtlievery peculiar larvae ofthis species.

Aedes podographicus

sp.nov.

c?. Thoracic ornamentation similar to

the?. Thorax

_{black, silvery} scaled

on

thesidesbeforethe wings. 9^• First jointofmiddletarsiwhite, a black spot^atthe middle, notblack, whiteatthe ends.

Thisisthe Central

American

form referred to

by

^{us as Aedts insolUa}

Coquillettunder Mr.Coquillett'sdetermination(Journ. N. Y. Ent.Soc. xiv, 20:^, 1906), but it appears from a nice bred series sent us

by

^Mr.F.

W.

Urich, that^insolUa(which

was

described from Trindad) ^isthefemaleof the _speciesofwhich Verrallina loternaria Coquillett^isthe male, the sexes being dimorphic.

The

_species will be

known

aswsolita Coquillett. In podograpJdcas the sexes are

monomorphic.

The

larvae were _separated

by

^usontheshape^oftheantennae; but ^as this character is rather indefinite, ^it will be better to changethe_table, omitting the dichotomy ^40, placing podographicusMith insoliiaunder44,

and

_separate

them by

^theshape^ofthepecten of the^airtubeas

shown

in our _figures 17

and

20, figure 17 representing ^insoliia

and

_figure20,j!)0(/o- grajiJiicus.

Localitiesasgiven

by

^{usunderAedesinsoliia (Verralina insoliia}

Dyar &

Knab,

^notCoquillett). Sonsonate,Salvador

may

^be considered the type

locality.

Type.—Cat.No. _10,016, U.S.Nat.Mus.

Genus HAEMAGOGUS

Williston.

Haemagogus

Williston, Trans. Ent. Soc. Lond.,271, 1896.

Howardina

_Theobald,

Mon.

Culic,iii,287, 1903.

Gualteria Lutz,

Imprensa Medica

(speciesNo._VI), 1905?

Gymnomelopa

Coquillett(in part), Proc.Ent.Soc.Wash.,vii,183, 1906.

CacomyiaCoquillett,Tech. _{ser. 11,}Dept.Agr.,BureauEnt.,16, 1906.

The

_genus

Haemagogus

^willhavetoberecognizedonadult charactersifat all;the larvaedonot sharplydifferentiatethemselvesfromAedes.

We

take this to be a groupspecialized offfrom_{Aedes, the}tarsal claws of thefemale having^{lostthetooth.}

The

smallend_jointofthe palpus^isretained,

which

differentiates the genus from ^Cidex.

We add

to the genus,^asused

by

Theobald,

Houardina and Gymnomelopa

(all but _{the typespecies),}

which

difler in ornamentation, butagreeⁱⁿother_respects. Cacomyia

was

_pro- posed

by

Coquillett foralhomacidata Theobald

and

_{equinns Theobald,}

on

the venational characters used

by

^Theobaldtoseparate thespecies.

We

agreewith the English authorthat these arenot _{of generic}value.

The

other characters adduced

by

Coquillett from specimens ^before

him

are faliaceous, for he

had

before

him

neither albomaculaius nor _equinus, the specimens he

had

so identified being,^{as to} the former, Aedescapricornii Lutz

and

Aedesajfirmatits

Dyar & Knab

; as tothe_latter,Aedes pMlosophicus

Dyar & _Knab,

allwith toothed claws, incontradiction ofTheobald'sex- plicitstatementtothe contrary.

We

_presumethatthe three_speciesplaced

by

^{Dr.Lutzin his}genus ^Gualieriabelong here,though

we have

notseen authentic specimens. G.fidvithorax^{isstated to}have_simpleclaws,but of

166 Dyar ^and Knah — Some American

Mosquitoes.

Ci.osivakU

and

G. fiuviotilis

we

can not detennine

any

positivestatement inDr.Lntz's writinjrsonthis point. Moreover,^tlie description of^osivaldl reads soiiuu-li likeourAedesinsolitaCoquillett that

we

arein

some

doubt

ifitisnot_actually that _species. Inthiscaseitwould be

removed

from

IlaeinaijoijMii,as insnlUn has toothed clawsinthe female.

Key

to

the

Species of

Haemagogus.

Tlinrax with narrow longitudinal white or golden^lines.

Two

middle thoracic lines running back to

scutellum ^'s^V/nm/a Theobald

Two

middlethoraciclines running back two- thirds,followed

by

^asingle^line.

Lateral thoracic linebroad,silverywhite ^{. ^}walkeriTheobald Lateral thoracic line narrow,^orbroken,^sil-

very.

IMedian _posterior tlioracic linenarrow,

silvery ^{^}fliio?io/otoCoquillett

Median

_posterior thoracic line broad, diffusely golden ^or silvery,ending^ina

silverspot

on

scutellum ^*tuscAn_Coquillett

Thorax

withagoldenlateral line ^{'^}aureostriata

Grabham Thorax

withoutnarrowdorsallines.

Baseoffirstsuljniarginal^cell nearer base of

wing

thanthebase of thesecond_posteriorcell.

Thorax

dorsally metallic blue orgreen.

Abdomen

without_{spotsdorsally}

....

splendensWilliston

Abdomen

with basal segmental silvery

white_{spots regalis}

Dyar & Knab

Tliorax dorsally black

and

white

banded

^{. .} oswaldi Lutz

Thorax

_{dorsallygolden before,}darkbehind fiuviatilisLutz

Thorax

_dorsally allgolden fnlvilhoraxLutz Baseoffirstsubmarginal^cellnearerapexof

wing

thanbase ofsecond_posteriorcell.

With

_large setae on third

and

fourth ab- dominal segments; ^lasttwosegments^with

silvery white

median

_patches alhoiiKtrulatusTheohaXd Without prominent^{setae; fourthto}seventh

segments^with whitebasalbands

....

eguinusTheobald

Haemagogus

splendens ^Williston.

We

i-estoreWilliston's

name

for the species identified as the cyaneus of Fabricius

by

Mr. Theobald,as

we

think

we have

founda_speciesthat fits better to Fabricius' desciiption than_{splendens does,}

namely

Salethoides confususTheobald.

1. FromTrinidad. 2. FromJamaica. 3.FromSantoDomingo. ^4. From_Dominica,

Martinicjue,andGuadeloupe.

Dyar ^and Knob —

_Borne

_American

Mosqinfoes.

167 Haemagogus

regalis sp.nov.

Proboscis _long, black;

head and

thorax brilliant metallic blue

and

green^; i)leurae silvery;

abdomen

dark bluewith_silverybands

on

all the segments^above,broaderbelow. Legsblue-black, the

mid and

hind femora white below towardsbase. Baseofthefirstsubmarginal^cellslightlynearer thebase ofwing thanbase of thesecond _posteriorcell.

22 specimens, Sonsonate, Salvador^(F.Knab), SanJuan, Trinidad (F.

W.

Urich),Cacao, TreceAguas,^AltaVera_Paz,

Guatemala

_(Schwarz

&

_Barber),

Livingstone,

Guatemala

(H. S.Barber).

Type.—

Cat

No. _10,024,U.S.Nat.Mus.

The

larva

was

confused

by

^uswith that of splendens ^AVilliston {cyaneus Theobald, ^notFabricius).

The

table(Journ. N.Y._{Ent. Soc,xiv, 191, 1906)} should becorrectedunder dichotomy⁴³

by

strikingout^"shortabdominal hairs stellate"

and

for"cyaneus^' read "45."

Add

a

new

_{dichotomy,45, as}

follows^:

45. Pectenreaching over half oftube,ofabout18teeth;second-

aryabdominal hairsnotstellate regalis Pectennotreaching^{half of}tube,ofabout 12 teeth; dorsal

abdominal^hairsstellate,long splendens

Haemagogus

fulvithorax Lutz.

Haemagogus

fuMlhorax LutzⁱⁿBourroul,Mosq.

do

_Brasil,p.4of

Key

^to

Euculicidae, ^1904.

Gualierla fulvithoraxLutz in Bourroul, Mosq.do. Brasil,p.13ofCat.of species, 1904.

Gualteria fulvithorax Lutz,

Imprensa Medica

(Sp.No._{VII), 1905}? Taeniorhynchuspalliatus Coquillett,Can.Ent., xxxviii,61, 1906.

Mr. Urich hasdiscovered the larva of this elegant species

and

sentus several larval skins from Trinidad.

The

_species,

by

the thoracic orna- mentationoftheadult, ^is like Aedes knabi Coquillett {Culex knabi Coquil-

lett,Proc.Ent.Soc.Wash.,vii,133, 1906).

That

Mr._Coquillettshouldde- scribethe_{species in} TaeniorhynchuswhileDr.Lutz_placesitinHaemagogus,

shows

the_futilityofthescalecharactersas a

means

of generic separation.

The

larvafallsinourtableofAedesunderthedichotomy43,

and would

_go

into44 (with knabi,insolita,

and

podographicas) but that thesecondary^ab- dominalhairsarecoarse

and

stellate. Ithas theairtube_short,

2x1,

strongly tapered

on

outer_half,the pecten of¹³denselyplaced teeth,the outerones long, blunt,followed

by

^along,4-hairedtuft.

The

larvae were taken from a hollow _tree,

and

were forwarded to Mr. Urich

by

^{Dr. J. R. Dickson.}

We

congratulateMr. Urich

and

Dr. Dickson

on

this interesting discovery.

Haemagogus

aureostriata

Grabham.

Howardina

aureostriata

Grabham,

^Can. Ent., xxxviii, 171, 1906.

Dr.

Grabham

has sent us these curiouslarvae.

They

^{fallinourtable in}

Aedes, but separate ^at the dichotomy¹⁸

on

the length of the^{air tube, it} being^overfourtimes as long ^as wide in aureostriata

and

three times or less in the other _species.

The comb

scales are verypeculiar,being^ina long, straightrow,

much

as inthegenusMochlostyrax.

168

_Djiar

and Knab — Some American

Mosquitoes.

Genus SABETHES

Robineau-Desvoidy.

Sabethes cyaneus

^Fabricius.

Cnlfj: CAjanemiFabricius, S3\st. Antl., 35,No. 9,1805.

Sahelhes nitidusTheobald, 9,

Mon.

_Culic,ii,347, 1901.

Sabethoides covfususTheobald,

Mon.

Culic, iii, 328, 1903.

An

examinationofthedef^criptionsof Fabricius

and "Wiedemann

seems to us to clearly indicate that Fabricius

had

before

him

this Sabethid, rather than the _species Ilaemagogussplendens Williston

which

Mr.Theo- bald has

made

a

synonym

^{ofFabricius'old}species.

The

abdominal

mark-

ingsforma lateral line as described,

which

is not the case in splendens,

and

thecolorof thethoraxalso agrees.

Genus WYEOMYIA

Thkorald.

Wyeomyia

pertinans ^Williston.

Aedes pertinans"Williston,Trans.Ent. See, Loud.,271, 1896.

Aedes_{pertinansGiles,}Gnats_{or Mosq.,352, 1900.}

Wyeomyia

pertinansTheobald,

Mon.

Culic,ii,272, 1901.

Wyeomyia

pertinansGiles,Gnatsor_]\Iosq.,2ed.,498, 1902.

AedespertinansGiles, Gnats_{or Mosq.,}2_ed.,483, 1902.

Wyeomyia

pertinans Blanchard, LesMoust.,424, 1905.

Wyeomyia

^ochrura

Dyar & _Knab,

Journ.N.Y. _{Ent. Soc,}xiv, 229, 1906.

Wyeomyia

^ochrura

Dyar & _Knab,

Proc. Biol.Soc,Wash.,xix, 141, 1906.

We

_{quote the}above

synonymy

^{for this}widelydistributed _species,hav- ing

now

l)eforeus cotypes oipertinans,whichDr.Willistonhasvery kindly

'

sent usforexamination. Itisa true Sabethid, not a Oidex (see remarks under Culexdivisor

Dyar & _Knab,

Journ. N.Y._{Ent. Soc,}xiv, 222, 1906).

Genus CULEX

Linnaeus.

Culex

ocellatus Theobald.

CulexocellatusTheobald,

Mon.

_{Culic,iii,222, 1903.}

Mr. Uriah has discovered the larva ofthis prettyspecies,

which he had

formerlybred froma

pupa

^{in Bromeliawater. Itfallsinourtable}(Journ.

N.Y.Ent. Soc, xiv, 207,1906)with _imitator, consolator

and

inimitabilis,he- ing aclose allyof these_species, with itsextremely long^airtube

and

_gen-

eral slender, colorless appearance. ^{It ditfers} from_rejectorinthe smaller pecten with two detached _teeth,wliich areas in consolator; ^itdiffersfrom inimilabilis inhaving

more

teethinthe pecten (ithasseven whileinm?7a-

hilis has _five)

and

in having^a

median

hair tuft

on

thetube instead of a single hair; ^itdiffersfromconsolator inhaving^asmall multiple^tuftonthe tube

beyond

^themiddle

and

a subapicalsinglehair instead of four rather long 2-haired^{tufts. Itis}nearesttoimitatorTheobald,^so

much

so that

we

cannot demonstrate

any

differences inthe limitedand

somewhat

defective material before us _(thehead hairsofimitatorhavenotbeen_studied).

The

antennaeofocellatus'dreslender, pale,thetuft froma small notcli wellbe-

yond

^themiddle; upper headtuft in fours,lowera_singlethick spinulated hair.

Bred

by

^{Mr.Urich from Bromelia}water, Sangre Grande,^Trinidad.

Dyar

^(cnd

Knah — Some American

Mosquitoes. ^10,9

Culex azymus

pp.nov.

$. Palpi, proboscis

and

antennae _black;

head

white _Ijehind, with a patch ofblack, forkedscales inthe middle, black

on

thesides below% setae black.

Thorax

black,golden-brown scaled,uniform, without _spots, setae black; pleurae whitish, with a black^V)and abovebases oflegsand another below wings.

Abdomen

black, ^witli

narrow

whitish basal segmental bands, widening laterally, venter grayish white, _^.egsblack,thefemora pale below,^tibiae

and

thefirsttwotarsal jointsappearing^whitish

on

lower side in certain_lights,unhanded.

Alliedto Cuh'.v pleurlstrialusTheobald,^l)utlacking the thoracic spotting

and any

^{traceof the whitetarsalbands.}

The

larvaisallied to pleuristriatus (Journ. N.Y.Ent.Soc, xiv, 205, 209, 1906),butthe pecten of the^airtubehas

two

detached_teeth,which exceed thetwo basal hairtufts.

One

S2>ecimen,bred fromlarvae in Bromelia waterat Arima, Trinidad

by

^]\Ir.F.

W.

Urich.

7;;//)^'.—Cat.No. _10,020,U.S.Nat.Mus.

Culex ^basilicus sj).nov.

9^. Proboscis black with _{a broad,} dull white_ring; antennae

and

_palpi black;

head

with_lightgoldenyellow^scales behind.

Thorax

black with brown-black scales centrally; along the^sidesof

diskaband

of lightyellow scales with a narrow _square central projection ^into the disk; a square patch of

same

colorbehind,

and on

scutellum; pleurae whitish,marked, withblack above,centrally

and

onthe bases ofthe_legs.

Abdomen

black with centralbasalwliite spots

on

the first four segments, pale terminal hairsonall the segments; venter with _short, broad whitebasalsegmen- tarybands. Legsblack,femorapale beneath,tipsoffemora

and

tibiaewhite, tips

and

bases of thetarsal jointsverynarrowly^white.

Wings

^withnar-

row

scales.

The

larvafallsinthe table with _janitor

and

lactator(Journ. N.Y. Ent.

Soc,xiv, 205, 1906), but differs in having the ring of the anal segment broad; pecten of eight spines reaching^tothemiddleoftheairtube; one

tuftwithin the pecten, three

beyond

it, notin_line,twotufts

on

the dorsal aspect of thetube,^allthetufts2-haired only, thick

and

coarse.

Five_specimens,bred

by

^{Mr. Urich fromlarvaeina tub}near the kitchen atArima,^Trinidad.

Type.—^Cat.No._10,021, U. S.Nat.

Mus.

• Culex consolator sp.nov.

The

larva isvery^{close to} Culex_rejector

Dyar & Knab,

unbred (Journ.

N.Y._{Ent. Soc,}xiv, 221, 1906),found inBromelia wateratCordoba,

Mex-

ico. Itdiffers in having^{the liairtufts}onthetubelong,theanalsegment witli a lateral rosette of_spines.

A

_single

male was

bred

by

^{Mr. Urich} froma larvainBromeliawateratArima,^Trinidad.

c?.

Head

black, with narrow, curved whitish-gray ^scales beliind

and

blacksetae. Proboscis black,palpi black, veryhairy,^Avithwhite_{rings at}

170 Dyar ^and Kvab — Some American

Mosquitoes.

tliebases ofthe_joints; antennaeblack.

Thorax

_{goldenbi'own,} with_pale longitudinalstriation, underahigher

power

with sparsegolden^scales

and

coarseblack_setae,twowhitish dorsal impressed ^lines

and

an_obliqueone on the pleura before the

wing

^insertion.

Abdomen

blackwithdistinct whitebasalbands; thoraxbelow_greenish; legsblack,femora_palebelow_;

allthe^tarsiwithnarrow whitebasal_rings.

Type.—

^Cat.No.10,019,U. S.Nat. Mus.

Cuiex imitator Theobald.

Culex imitatorTheobald,

Mon.

Culic,iii,175, 1903.

Culexdaumsaturus_Dj'ar

& _Knab,

Journ.N.Y.Ent. Soc. xiv, 220, 1906.

Culexvector

Dyar & _Knab,

Journ. N.Y. _{Ent. Soc,}xiv, 220, 1906.

A

seriesofisolationsfrom Mr. Urich indicates theabove synonym}'. In studying^{the larvae}alone,

we had no

idea that the larvaewiththeswell- ing ⁱⁿ the tube could be conspecificwiththose lacking ^it (compare our figures52

and

_53),butsuch seemstobethecase. "We

had

before us but one specimen^ofvector

and

twoof dauvntstunis. Mr. Urich has_recently sent usfour isolations

which show

a_straighttubeintwo, a barelypercepti- bleindication of a swellingⁱⁿ one

and

a small swellingⁱⁿanother, placed

more

_basallythaninour_{figure 52.}

The

adults areallalike,

and

_agreewith Theobald'sdescription of^imitator

and

withspecimens from Brazil,

which

havebeen kindly^sent

by

^{Dr. Lutz. Mr. Urich}got the larvaeinBromelia waterat

Arima and

Williamsvilie, Trinidad.

We

are pleased^tobeableto restore Mr.Coquillett'sdeterminationsin at leastonecase_(seeourremarks, Journ.N.Y._{Ent. Soc,xiv,220}

and

_221).

Culex

lactator

Dyar & Knab.

Culex lactator

Dyar & Knab,

^{Journ. N.Y.} Ent. Soc, xiv, 209, 1906 (March).

Culexhassardii

Grabham,

^Can.Ent.,xxxviii, 167,1906 (May).

We have examined

larvae

and

adults sent

by

^Dr.

Grabham

from Jamaica

and

find

them

conspecificwith oursfrom JNIexico

and

CostaRica.

Culex bastagarius sp. nov.

Very

^{close toC.} mutator,

Dyar & _Knab,

describedfrom Cordoba,^Mexi(;o.

The

^larvae differ slightly. In mutator thewhole

body

^isdensely hairy, theupper head^tuftisof three rather long^hairs

and

twoof the_apical an- tennal spines are well

removed

fromthetip (Journ. N. Y. _{Ent. Soc, xiv,}

pi.X, fig. 42, 1906j^; in bastagariusthethorax only^ishairy,the

abdomen

glabrous, theupper

head

tuftisof four hairs

and

_verysmall,the four an- tennal spines are^closetogether^atapex.

The

adults of midatorwere

named

^"Melanoconion humilisTheobald^"

by

Mr.Coquillett. CiUex humilis Theobald (Mon. Culic,ii,336, 1901),was describedfrom SaoPaulo,Brazil.

We have

seen neither adultsnorlarvae from _Brazil,and,though ^Theobald's description, as farasitgoes, applies to our specimens, the occurrence of closely allied forms in

Mexico and

Trinidad,prevent^usfromaccepting the

name

fortheformbefore us.

C.mutator

and

C.bastagariusare practically identical in markings (and agree with Theobald's description of _humilis),but in mutator the upper

Dyar ^anclKnah — Some American

Mosquitoes.

171

branch of thefifthvein (cj*) hasthescalesnarrowly ^linear

and

outstand- ing,whilein bastagariusthey^arenarrowly obovate,grading ^{intothose of} the veins above.

One

_male,bredfromlarvaeinsmall grassy poolsat Laventille,Trinidad,

by

^Mr.F.

W.

Urich.

Two

othermalesareinthecollection,bred

by

^Mr.

A.Busck from unisolated larvaeatArima,Trinidad.

Type.—

Cat

No. _10,018,U.S.Nat.Mus.

Culex

carmodyae

^{mollis siibsp.nov.}

Mr. Urich has sentusaseriesofisolationsbred from larvaeinahollow treeatSangre Grande, ^Trinidad.

The

larvae aresoneartothose of Culex carmodyae

Dyar

^&.

Knab,

^{describedfrom Santo}

Domingo

(Journ. N.Y.Ent.

Soc,xiv, 210,1906),that

we

areunable to distinguishthem.

The

_adults, however,^{differ in}having very narrow white bands^atthe bases of thetar- saljoints withafew whitescales atthe apices of thejoints^also. In both theSanto

Domingan

carmodyae

and

theTrinidadrepresentative,mollis,the hindtibiaehavealineofbluishwhitescalesabove, the legs being black, theendsof thehind tibiae lightbrown. In carmodyae^thereis

no

traceof whitetarsal bands, thelegsbeing black, with a scarcely lighter brownish tintatthe_joints; in mollisthebands_{are very}distinctalthough extremely narrow,hardly wider thanthe length ofascale.

Six specimens, four males,twofemales.

Tyjje.—^Cat.No. _10,022,U. S.Nat.Mus.

Genus MOCHLOSTYRAX Dyak & Knab.

Mochlostyrax

^floridanus sp.nov.

The

larvafallsinthe table (Journ. N.Y.Ent. Soc,xiv, 223, 1906), with pilosusD.

&

_K., butthe

body

^isglabrous.

Head

broad

and

_squarelytrans- verse,eyes bulging, alarge notchatinsertion of antennae; _clypeus shal- lowly emarginate with two spines; antennae _long,a small notchatouter third bearing the long hair^tuft; thetwolongest of theapical sjiinesplaced before apex. Both

head

hairssingle, small,a small third hair below, ante- antennal tuft large, multiple. Lateial abdominal hairs in twos on the third to sixth segments.

Comb

of the eighthsegment ^{of 12} scales ina strongly curved,single,rather _irregular row. Air tube three

and

a half timesaslong^aswide,roundlytapered

on

theposterior side,with_{a pair of} hooks_{at tip}; eight long ^tuftson the _posteriormargin ^{in a} straightrow, twoof

them

within the pecten^; twosmall lateral tufts. Tuft behind the

comb

large. Anal segmentlongerthanwide, ringed^; ventral brush

mod-

erate, dorsal tuft fewhaired. Anal gillsrather _long,theupperpaircon- siderably shorterthan thelowerones.

Larvae from_Estero,Florida_(J. B.

VanDuzee)

^;

no

adults.

Type.—

Cat

No. _10,025,U. S.Nat.Mus.

This

may

^bea

synonym

^ofM.jamaicensis

Grabham

_{(Can.Ent., xxxviii,}

318, 1906). Dr.

Grabham

_{has kindly} sent us larvae and they agree very closelywithour_Jioridamis.

We

consider

them

conspecitic. However,^Dr.

Grabham

gives severaldifferentialpointsin his description,and,^aswhole larvae are sentus, notisolations,thereisachancethatamixtureof_species occurred.

172

Ihiitr^(Ilidh'iiah

—

Sonic Aineriraii iMosqultoes.

Mochlostyrax

jamaicensis

Grabham.

According^to the characters given

by

^Dr.

Grabham,

this species will ^tall inthetablewitli ])ilosns

Dyar & Knab,

ditfering intherelative length of thetube. InjdiiKiicinsisthetubeis

"about

^fivetimesaslong^asbroad_(at base)^" whilein pilasus^itisfourtimesaslong^asbroad. Thereare fewer

comb

scalesinjdmaiccjisis

and

_theyare _larger; the anal _gillsare unequal.

Dr.

Grabham

has kindly sent us

some

larvaelabelled"

Mochloslyra.vjamaic.

ensis"

which

differfromhisdiagnosisⁱⁿhaving^the

body

glabrous

and

the airtubetliree

and

a half timesas long^aswide; otherwise theyagree well withhis description.

They

^areapparently ^identicalwith ouv^f.foridanus.

Still this

may

^be a case of geographically ^isolated forms,

and

the adults

may

^befoundtopossess diflerences,

when known,

^{as in} the case of Cule.v caniiDdiiae

and

C._vidIIIs,referred toabove,

where

the larvae arealike

and

the adultsditi'er,butinhabit separatedlocalities.

As

it stands,M.Jhridu- nuawillhavetobe

added

tothe

Jamaican

list, itbeing

more

probable that Dr.

Grabham had

two_species before

him

thanthathe should

have made

any

such consi)icuouserrors indescription^as thesewould havetobecon- sidered.