Two new parasitic Hymenoptera

OF WASHINGTON, VOLUME

XII, ^1910.

145

amere linedorsallyon posterior edge. Beneathashen, the pale

band

as above showingwhite,and alllines apparent,but

much

_finer, the heaviest being ^the intra-discal and the outer bordering ^or geminate pale lines, while the extradiscal

becomes

a rowofblack dots onveins.

The

lines arebroadand dark at costaon_primaries,andthe discaldotlarge, linear, and_{jet black,}on all wings. Marginal^line and _fringesas above.

Body

and_legsashen, sprinkled heavily with dark brown.

Type: No. _13365; one male and one

female,

the former from Southern Arizona (Poling), without

date,

through

^the

courtesy

^{of Dr.}

Dyar,

^I

have been allowed

to retain.

The

latter is

the

_{type, so-called,} of

Tep.

niveifascia

Hulst (Can.

Ent.,

xxx,

p. 115),

recorded from Oregon.

^{It will}

^{be noted}

that it is not

even _congeneric with the

true niveifascia,

the type

^of

which

is in

the Hulst

collection at

New Brunswick.

TWO NEW PARASITIC HYMENOPTERA.

[Chalcidoidea; Pteromalidae.]

BY

J. C.

CRAWFORD.

Coelopisthia diacrisiae,

new

_species.

Female. Length about ⁵

mm. Head

and thoraxbronzy-aeneous,with shallow thimble-like punctures; ^antennae brown, scape and pedicel ^tes- taceous; firstring joint transverse, second _slightlylonger than broad;

pedicel longer than ringjointsand firstjoint of funicleunited; scutellum at rear with larger punctures,causing ^the appearance^{of an indistinct} transverse line on scutellum;

propodeum

^{with an indistinct}

median

carina; ^{lateral folds} indicated at base _only; area

bounded

_by lateral folds punctured; back of the lateral folds the punctures extend lat- eradto the_spiracles

; neck of

propodeum

very short; wings

somewhat

dusky; postmarginal ^{vein shorter} thanstigmal: legsreddish testaceous;

hind femora

and

tibia; dark brown, knees, bases, and _apices of tibia;

testaceous;

abdomen

_verydark brown, basally metallic greenish.

Male unknown.

Habitat: Rocky Ford, Colorado.

Reared from

Diacn'sici rir^hiica,

by H. ^O. Marsh, Bureau

of

Entomology, ^U.

^S.

Department

^of

Agriculture, and recorded under Chittenden No.

1561.

Type:

^Cat.

No. _{13367, U.}

S.

National Museum.

Merisus

mordellistenae,

new

_species.

/vwrt/^.-Length about 2

mm. Head

and thorax purplish black, with scattered silver-whitehairs: pleura¹

and coxa

³witha bluish _tinge; punc- tures of head and thorax deep, thimble-like; face below antenna' with stria;converging towards ^the.

mouth;

_{scape and pedicel brown,} restof antenna¹ honey-color; pedicel about_{as long} asringjoints andfirstjoint offunicleunited; second _{ring joint}abouttwice aslong^asfirst; joints of

146 PROCEEDINGS ENTOMOLOGICAL SOCIETY

funicle subequal, the ^firstslightly longer; joints of club fused, the apex produced^into a spine-like process^;

propodeum

punctured,^{lateral folds} represented only

by

basal foveas;

mesepimeron

^{with a} depressed ^area with thimble-like punctures, above this a single fovea and one _below;

belowinsertion of wings ^adouble _fovea; restof mesopleura- almost^un- sculptured; coxas metallic _bluish,femora brown,^{rest of} legs,including trochanters, honey-color;

abdomen

yellowish, the sides

more

or less darkbrown. .

Male. Length about ²mm.; flagellum^of antenna; over 1

mm.

Sim-

ilarto the female but

more

purplish: legs brown,

abdomen

dark brown;

antennas elongate,dark brown, the funicle seven-jointed, the ^first joint two-thirdsas long^asthe scape; apical spuron club as in female; mes- opleura;and metapleuree mostly punctured.

One

of

each sex reared from Mordellistena

ustnlata

by

^\V.

J. Phillips,

Bureau

of

Entomology, ^U.

^S.

Department

^of

Ag

riculture;

the female from _Lafayette, Indiana (under Web-

ster

No. 5181), and the male from Wilmington, Ohio _(under Webster No. _6332).

Type:

^Cat.

No.

_13368,

U.

S.

National Museum.

NEW SOUTH AMERICAN NEUROPTEROID INSECTS.

BY NATHAN BANKS.

During ^the

past

two _years

I

have

received a

considerable number

of these insects

from Colombia,

^collected

by ^Mr. A.

H. Fassl

in

the western

_part of that

country. Dr. Esben

Petersen, of

Silkeborg, Denmark, has kindly

^sent

me

_dupli-

cates

from the Jensen-Haarup expedition

^to

Argentina. The

material

in

these two

_lots,

and

a

few

_others,

form the

basis of

the following

descriptions.

The

altitudes of

the

localities in

Colombia

are in meters, as

on the

labels sent

with the

_speci-

mens.

Family MYRMELEONID^.

Brachynemurus

argentinus,

new

_species.

Face

pale yellowish, vertex pale brown, ^ratherdark in front,notdefi- nitely

marked

; antenna; pale brownish, tips darker;

pronotum

pale yellowish, with apale

brown

_stripe each side,leaving^a narrow

median

line

; thorax pale yellowish, anterior lobe with two darkspots behind, largerspot overbaseofeach wing and onthe pleura, adoubledark_spot on eachscutellum;

abdomen

paleon basal _part, darkor blacktoward

tip, all denselywhite-haired; legsvery pale yellowish,tipsoflast tarsal jointblack, rest unmarked,spurslonger than basal two _{jointstogether.}

Wings

hyaline, venation _yellowish, longitudinal veins interrupted with black spotsand asmallcloud atendofeachcross-veininthe fore wings, the

median

vein ⁱⁿ both _{pairs pale,} almost unmarked, a larger spot