Descriptions of Braconidae

OF WASHINGTON, VOLUME

_XVII, 1915

55

DESCRIPTIONS OF BRACONIDJE

BY

S. A.

ROHWER, ^Branch

of ForestInsects,

Bureau

ofEntomol<></i/

GENUS ALLODORUS

Foerster.

This

_genus,

which has not

heretofore

been recorded

in the

Nearctic

_fauna,

may be separated from

_Triaspis

Haliday by

^the

presence

^{of at least}

a stump

^of

^the

^cross

^vein

ⁱⁿ

^{the anal}

cell,

by having the

fourth

and

fifth tergites

narrowly

visible,

and by the more

or less

convex

venter. (In Triaspis

the venter

is

con-

cave.)

('haracters

Common

to the Nearctic Species.

Black;

legs ferruginous

except the brownish

_posterior tibiic

and

_tarsi;

_wings

_hyaline,

venation dark brown

or black; front shining, sparsely

punctured; mesoscutum and meso-prescutum

shining, sparsely

punctured;

notauli'foveolate;

the base

of

the propodeum ^{with two}

shining areas; posterior face irregularly reticulate;

the depressed area between the mesoscutum and scutellum with a strong median

_carina;

mesepisternum

shining, sparsely

punctured; depression

^before

the

carina

between the mesepisternum and ^the mesepimeron

foveolate; third

antenna!

joint

a

little shorter

than the second;

^{ocelli in}

a

little less

than an

equilateral triangle;

the

postocellar ^line

much

shorter

than

the ocellocular line; ovipositor

about _{the length}

of

the abdomen.

Table

to theNearctic Species

Face _shining, very sparsely punctured; supraclypeal^fovescshallow; elyp-

ojil suture uniformly strong; the strisc of the third _{tergite straight.}

parallel and covering the entire surface fiskei (Rohwer)

I''are

more

_{closely puncturedlaterally}

and more

orlessrugulose medially;

supraclypeal ^foveic strong; clypeal suturepoorlydefined medially;^striae of the third tergite oblique laterally,

and more

or less concentric api- (filly with a

median

area

which

is usually nearly transversely ^striatc -tomoxicB

Rohwer

Allodorus fiskei (Rohwer). 7Vm.s-y>/.s //.sAv, Kolnvrr, Proc. U. S. Nat.

Mus.

Vol._45, No. 1991, 1913, p.535.

Allodorus tompxiae

new

_species.

Length

^4.5

mm.

for both sexes.

The

female agrees with the above

mentioned

characters.

The

males have the head _slightly paler than the females often having the face entirely reddish yellow; otherwise they agree with the females.

Falls

Church,

Virginia. Described from three females (one

typo

and three males _{(one allotypc)} recorded under

Bureau

of

Entomology number Hopk.

U.S.No._10122,

which

refers tonote stating^{that this}species

is parasitic on the larvae of Toni/i.rin lineella feeding ⁱⁿ brashy

wood

^of Liriodendron stumps. Material collected

and

reared June 22, 1912,

by

S. A.

Rohwer.

Type: ^Cat. No. _19096,U. S. N.

M.

56 PROCEEDINGS ENTOMOLOGICAL SOCIETY

GENUS NEOFHYLAX Ashmead.

This genus belongs

^to

the Agathinse

^{as defined}

by both Ash- mead and

Szepligeti.

In

Szepligeti's table to

the genera

^{of tho}

Agathinse

^it

runs

to

the genus Megagathis Kriechbaumer but

differs

from the

descriptioa of

that genus

ⁱⁿ

having

^{the de-} pression

above the antennae with a margining

^carina

and

in

having the second segment ^without any

^sutures.

Neophylax snyderi

Ashmead.

Female:

Length

⁷

mm.

Ferruginous;

antenna¹, extreme _apices of the posterior ^tibia?

and

the posterior ^tarsi, black;wingshyaline,slightlydusky, venationyellowish; costa

and

_stigma black.

Prescutum denned by

foveolate furrows; depression

between

tho

scutum and

the scutellum with three longitudinal ruga?; the dorsal

and

posterior aspects^ofthe

propodeum

separated

by

^asharp carina, the dor- sal aspect with four longitudinal ^carina?

which

define three rectangular areas, the

median

one narrower thanthelateralones, the posterior aspect withfiverectangular areas the

median

one_slightly broader, dorsally; ab-

domen

shining, second_tergite hearly ^as long ^{as the first.}

Luebo, Congo. Described from one femalecollected

by

^T.

W.

_Snyder.

Type: ^Cat.No. 14162,IT.S.N.

M.

Macrocentrus_aegeriae,

new

_species. Of the described species th^{is is}

more

_nearlyallied tomellipesProvancher, but

may

^bedistinguished

from

that_species

by

^the sculpture ^of the prescutum.

Female:

Length

⁸

mm.;

length ^of the ovipositor 8.75

mm.;

length ^of the

antenna

9.5

mm.

Anterior

margin

^of the clypeus broadly, gently, arcuately emarginate;

head

belosvtheantenna? shining,with_sparse,widely separated punctures

which become

closer in the

median

area, abovethe antenna?; posterior orbits shining, practically impunctate, except ^for the setigerous punctures; postocellar ^line about one-sixth shorter than the ocellocularline;

scutum and

_prescutum shining, the

scutum

_medially withafew_largepunctures;notauli welldefined,foveolate, reticulate

where

they meet; scutellum shining, with a few distinct setigerous punctures;

depressed area

between

the

scutum and

scutellum with eleven strong ruga?;

propodeum

transversely irregularlystriate, anteriorly the striations are finer

and

there is a tendency towards reticulation;

mesepisternum

shiningwith uniform, widely separated^distinctpunctures;^first

and

second tergites with longitudinal striae; onthe firstthe stria;form an elliptical- shaped

median

area; the third

and

_{followingtergites}practically

impunc-

tate; secondabscissa ofthe radius but littleshorterthanthe first trans- verse cubitus; nervulus post-furcal

by

^{half its}length. Black; palpi

and

tegula? brownish; mcsosternum, lower _part of the mesepisternum, spot,

onthemesepisternum

and

_legsexcept the posterior^tibia?

and

_tarsi,rufous;

the apices of the four anterior legs paler; the posterior^tibia?

and

tarsi brownish_{black; a}

narrow

_pallid

band

atthebaseoftffe tibiae;wingshyaline, iridescent, venation brownish.

Greenville, SouthCarolina. Describedfrom one female recorded under

Bureau

of

Entomology number _Hopk.

U. S.

No.

11128o, material reared

May

^5, 1913,

by

^{Carl Heinrich. This} species ^isparasitic on thelarva of (Sesia) JEgeria ^castanece Busck.

Type: ^Cat.

No.

19085,U.S. N.

M.

Actualdate_ofpublication,

March

16, 1915.