PARASITIC WASPS OF BRACONID SUBFAMILY EUPHORINAE 21 
WESMAELIA PENDULA Foerster 
(Figs. 1, J: 2, Hand K) 
Wesmaelia pendula Foerster, Verhandl. Naturh. Ver. Preuss. Rheinlande 19 
(N. F. 9): 251, 1862. 
Wesmaelia cremasta Marshall, Ent. Monthly Mag. 8: 257, 1872. (New synonymy.) 
Wesmaelia americana Myers, U. 8S. Nat. Mus. Proc. 53: 298, 1917. (New 
synonymy.) 
Wesmaelia asiatica Shestakov, Zool. Anz. 99: 261, 1932. (New synonymy.) 
A study of the type specimens of pendula, which are in the Zoologi- 
cal Museum at Berlin, and those of americana, which are in the 
United States National Museum, has convinced the writer that these 
names are Synonymous; and the descriptions of cremasta and asiatica 
agree so completely with the types of pendula and americana that 
there can be little doubt that all four names apply to the same species. 
The above generic characterization combined with the following 
description will distinguish the species: 
Length 3.5to4mm. Eyes strongly convergent below; face and frons minutely 
punctate; frons with a fine median longitudinal carina arising just above insertion 
of antennae; antennae normally with 24 to 28 segments, shorter than body; basal 
flagellar segment as long as scape and pedicel combined; occiput, temples, and 
cheeks polished; mesoscutum smooth, with a large triangular rugulose area 
posteriorly; the middle lobe short; propodeum completely rugose; ovipositor 
sheaths shorter than posterior metatarsus. Yellow; antennae pale, fuscous 
apically; propodeum more or less blackish; wings hyaline; apex of first abdominal 
tergite sometimes piceous; ovipositor sheath black. 
The species is widely distributed over the United States, the Na- 
tional collection containing specimens from Maryland, Pennsylvania, 
New York, Indiana, Kansas, Iowa, New Mexico, South Dakota, 
Colorado, Idaho, and Washington; there is included also one from 
Ottawa, Canada. The host relations are not certainly known. A 
specimen from Kansas is labeled ‘‘Reared from Hessian fly’’, but this 
record apparently needs confirmation before it can be accepted as 
correct. 
The Genus MYIOCEPHALUS Marshall 
Myiocephalus Marshall, in Andre, Species des Hyménoptéres d’ Europe & d’ Algérie, 
5 bis, p. 218, 1897. (Genotype, Microctonus boops Wesmael.) 
Spilomma Morley, Ent. Monthly Mag. (2) 20: 211,1909. (Genotype, Spilomma 
falconivibrans Morley.) (New synonymy.) 
Readily distinguished from other Euphorinae by its very strongly compressed 
abdomen; broad, more or less triangular (viewed from in front) head; large posterior 
coxae, which are as long as propodeum; and position of the propodeal spiracles 
which are at, or a little behind, the middle. Eyes large and very prominent, es- 
pecially in the female; face broadly shallowly impressed in the female, weakly 
convex in the male; head completely margined behind; temples rather flat, sloping 
strongly from the eyes; antennae long and slender; scape short; notauli not dis- 
tinetly impressed; impression at base of scutellum very broad and deep, not divided 
by longitudinal carinae; scutellum small, somewhat conical; posterior face-of 
propodeum strongly declivous and medially excavated; legs unusually long and 
slender; stigma rather narrow; two cubital cells; medius obliterated toward base; 
first cubital and first discoidal cells confluent; radial cell nearly attaining apex of 
wing; submediellan cell large, complete; abdomen strikingly compressed; ovi- 
positor exserted. 
Morley’s description and wing figure leave no room for doubt that 
Spilomma is identical with Myiocephalus. Furthermore, 1t appears 
very probable that his species falconivibrans will prove to be the same 
as boops (Wesmael), but owing to certain minor discrepancies between 
the type of boops and the description of falconivibrans, it seems best 
not to suppress the latter without first having studied the type. 
