new parasitic hymenoptera of the genus

NEW ^PARASITIC HYMENOPTERA OF THE GENUS EIPHOSOI^U.

By

T. D. A. COCKERELL, OftheUniversity of Colorado, Boulder.

The

genus Eiphosoma consists of Ophionine Ichneumonidse in whichthe stigmaiselongate,the

abdomen

long

and

slender,andthe hindfemoratoothed. Itisa characteristic

member

oftheNeotrop-

icalfauna,but Brues hasrecorded E. septentrionalefromas farnorth asPennsylvania.

A

species collected lastyear

by my

wifeinGuate- mala^isfound on examinationtobe new, and

when

comparingitwith the material in the United States National

Museum

I have found three otherspecies tobedescribed. Brues^{^}hasgiven atable ofthe speciesoccurringinNorth andCentralAmerica; with the

new

species added, thistable

may

be modified as follows. I omit E. -pyralidis

Ashmead,

which is the type of a distinct genus BracMxiphosoma Viereck. This B.pyralidisisa characteristic

member

oftheNearctic fauna,havingbeendescribedfromMissouri,andbeing representedin the National

Museum

from Agricultural College, Michigan (A. J.

Cook),Nyack,

New York

(Zabriskie), andIthaca,

New

York.

Metathorax with onlyamedianblacklineorband',^the sutureboundingitante- riorlyoftenblack,thisblacksometimeswidenedlaterally,forming aclavi-

formspot 1

Metathorax withlateralblack markings,not connected withthe anterior suture.. 7 1.Mesopleura witha black spot or obliqueline orband 2

Mesopleuraentirely yellow, areolet present 6

2.Posteriortibiaeentirelyhoney yellow; areoletwanting nigrovittatum CreBson.

Posteriortibiaelargelyblack 3

3. Wingsbroadly fuliginous atapex; areoletabsent schwarzi,newspecies.

Wingshyaline at apex, orwithafaintcloud;areoletpresent 4 4.Wingsmilky;areolet very minute,not longerthanitspetioleJacieum,newspecies.

Wings not milky 5

5. Length about12mm.;wings somewhat duskyattip;speciesofPennsylvania.

septentrionaleBrues.

Much larger; wings whollyclear;speciesofMexicoandCentralAmerica.

mexicanumCreseon.

1Psyche,vol.18,p. 21.

2AcotypeofE.mexicanumintheU.S.NationalMuseumhasminuteblack spotsonextremelateralmar- gins,so Ihaveplacedthisspeciesunder bothcategories. AccordingtoCameronitisvariableandwidely distributed.

ProceedingsU.S.National Museum,Vol.46—No.2010.

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PROCEEDINGS OF THE NATIONAL MUSEUM.

vol.46.

6.Abdomen with large black clouds on fourth and sixth segments;lateral piecesofmalegenitaliashaped^liketheendofafinger vitticolleCresson

Abdomenwithout blackcloudsonfourthandsixthsegments;lateralpieces ofmalegenitalia spoonlike motaguense,newspecies.

7.Wingsentirely hyaline 8

Wingstippedwithdilute fuliginous 10

8.Metathoraxblack,withfouryellowstripes texanumCresson.

Metathoraxyellow,withthemedian excavatedspaceand alineorspoton

eachsideblack 9

9.Small, anterior wing under5mm. long; Cuba;also collectedby Busckat

Bayamon,PortoRico annulatumCresson.

Muchlarger; anteriorwing about10mm.long;Mexico andCentralAmerica tnexicanum Cresson.

10. Hindtarsiandtibiaeyellow;metathorax withthreeblackstripes.

atrovittatum Cresson.

Hindtarsiandtibiaewithmuchblack 11

11. Length about17mm.; wingshyalineexceptforapicalcloud aztecum Cresson Lengthover 25mm.;wingsconspicuouslydusky forte,newspecies.

EIPHOSOMASCHWARZI,newspecies.

Female.

—

Length about 11

mm.

Anterior wing about 51

mm.;

structureandgeneraltypeofmarkingsas usualinthe genus; wings clear hyaline, broadlyfuliginous attip, the areolet entirelyabsent;

firstrecurrent nervure with a strong double curve; antennae black, yellowatbasebeneath_; groundcolor ofhead andthoraxlightclirome yellow;facewhollyyellowbelowantennae;mandiblesdarkredatthe sharply bidentate apex; ocellarregion, middle of front and occiput black; mesothoraxblackwithan elongatefl U inyellow, thelateral black lobessmooth

and

hardlypuncturedexceptinfront; scutellum yellow; mesopleurawith anoblique black

band

; metathoraxyellow with abroad

median

band, whichdoesnot reach the base; anterior and middle legs lightferruginous; hind femora red with a blackish shade toward base, and a dark saddle-like

mark

before apex, the singletoothbelowthiscloud; hindtibiaewith

more

thanthemedian thirdferruginous,the rest black; hindtarsi black;

abdomen

nearly as in E.mexicanum,,butfirstjointrather shorterin proportion,

and

jointsbeyond midcQecloudedwithblack.

Habitat.

—

Cacao, Trece Aguas, Alta Vera Paz, Guatemala, April 14, 1906 (Barber andSchwarz).

Type.—Cat.No. 15678,U.S.N.M.

EIPHOSOMALACTEUM,newspecies.

Female.

—

Length about9.5

mm.

Anteriorwingalittleover5

mm.

;

structure

and

markings ordinary, but wings milky hyaline, very white, with the areolet long, petiolate and excessivelyminute; an- tennae black, yellow beneath at base, and the first three flagellar jointsnarrowlyringedwithpaleatapexbelow; groundcolor ofhead andthorax rather pale yellow;mesothoraxblackwithsublateraland

NO.2010.

NEW

PARASITIC

HYMENOPTERA—COCKERELL.

₆₃

marginal yellow bands, thelateralblack areas stronglypuncturedall over; scutellum yellow; mesopleurawith abroadblackband; meta- thorax with abroad

median

blackband,inthemiddleofwhichisa deep narrowsulcus; atanterior cornersof metathoraxisaquadrate black patch; anterior and middle legs light ferruginous; hind legs peculiarly colored, theirtrochanterswithfemora havingthe basalhalf black, interrupted

by

a cream-colored annulus,which becomes an elongated stripe beneath its apical part on the femur; beyond the black thefemoraare swollen,with chestnutred,with a black subapical saddleandtheapexcreamcolor; thesingletoothisbelowthe begin- ningofthe subapical black; hindtibiaeblackwith abroadyellowish white aimulus; hind tarsi black;

abdomen

ferruginous, strongly blackened dorsally; apex of second segment above broadly fer- ruginous.

Habitat.

—

^linatitlan,Mexico, February1, 1892 (H. Osborn).

Type.—

C^t.No. 15679,U.S.N.M.

EIPHOSOMAMOTAGUENSE,newspecies.

Male.

—

Length about17

mm.

AnteriorAvingabout8

mm.;

struc- tureand markingsordinary,but mesopleuraclearyellowwithout dark markings; head andantennae colored as in E.lacteum; groundcolor ofheadandthorax

lemon

yellow; mesothoraxwith threebroadblack bands, thelateralones rather sparselypuncturedandnearly reaching the anterior border; scutellum yellow; metathorax with a median black band, andthe sutureanteriorly

boundmg

itblack; areolet peti- oled,but ratherlarge; apex of theanteriorwings with a veryfaint dusky tint, hardly noticeable; anteriorand middlelegspaleferrugi- nous, yellowbasally; hindlegswithfirsttrochantersferruginous, sec- ond cream colored,each blackenedordarkened above; hindfemora richchestnut red, broadly black above near base and with a large black subapicalsaddle,beyondwhich,on upperside,isa pallidpatch;

the single spineformed as usual, well developed; hind tibiae black with the middle broadly ferruginous, especially beneath, their tarsi black;

abdomen

deep ferruginous, segments 4 to 7 without black patches.

Habitat.

—

Quirigua,

Motagua

Valley,Guatemala,1912(WilmatteP.

Cockerell).

Type.—CU.

No. 15680,U.S.N.M.

EIPHOSOMAFORTE, newspecies.

Male.

—

Length about28

mm.,

anteriorwing about15

mm.;

struc- tureand markingsordinary, butsizeverylargeandblackonthorax gi-eatly developed; groundcolor ofhead andthorax reddish-yellow;

teethofthe bidentatemandiblesblack; flagellumofantennae black;

mesothorax black with yellow subdorsal and lateral stripes, the

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subdorsalexpandedanteriorly, the expandedpartsmooth,punctate only along^itsuppermargin; the blackareas of

meso

thorax coarsely but not verycloselypunctate; sides ofthoraxwithabroad-margined black triangle, which would be open on theinferior posterior side but for a large black patch placed before the opening; scutellum honey-yellow; metathorax broadly black at base, with also abroad blackmedianband,expanded apicall}^, and thesidesbroadly black;

wingsstrongly brownish, theapices dilute fuliginous, areolet largeand transverselyelongate, briefly petiolate; anteriorand middlelegs light ferruginous, yellow basally; hind legs with the first trochanters black, ferruginous at the pointed apex above, second trochanters ferruginous above and broadly yellow beneath; femora veryblack, except at apex and extreme base, but a dark red narrow stripe above and

most

oftheundersidebroadlydarkred, thesingletooth very strong, placed as usual; liind tibiiB reddish yellow, broadly black at base and apex, their tarsi black;

abdomen

with a black stripe above; basal half of first segment reddish-yellow; sixth and seventhsegments withalargeblackorblacldshsaddle; lateral plates of genitalia large, elongated, parallel sided, the basal half red, the apical half black.

Female.

—

^{Similartothemaleexceptin}the usual generic characters;

areolet smaller; subapical abdominal segments black above but withoutthebroadsaddle-likepatches.

Habitat.

—

^{Mexico, one of each sex, the female} labeled 384.

The

maleisthetype.

No

otherdataare available.

Type.—

C&t.No.15681, U.S.N.M.

Eiphosoma Cresson has been altered to

Xiphosoma by

certain authors,^ but this is contrary to the rules, and also impossible on accountofthe longprioruse ofthe

name Xiphosoma by

Spixfor a reptile,

I

am much

indebtedtoMr.S. A.

Rohwer

ofUnitedStates

Bureau

of

Entomology

for references to literature andother assistance.

1See Krieger,Zeitschr.Hym. Dipt., vol.3,p.291;Sz6pligeti,Genera Insectoram,Hymenoptera, Ophionoidae,p.4.