HYMENOPTERA. CHALCIDID. 71 
PLATYMESOPUS Westw. ————— 1 sp. PI. tibialis Westw. 
Maxillary palpi not furcate, second joint large, dilated, fourth very long; middle 
tibiz broad, flattened, and internally sinuated, terminating on the outside in a 
fascicle; anterior tibiew slightly dilated; abdomen ovate, depressed, much 
smaller than the thorax. 
MESOPOLOBUS Westw. ———— 1 sp. M. fasciiventris Westw. 
Head broad ; antennz gradually thickened, 13-jointed, third joint annular, fourth 
larger ; mandibles 3 to 4-dentate ; max. palpi g furcate; middle tibie with a 
small hirsute lobe on the outside near the tip 2. 
ENTELUS Wik. —— 30sp. Ent. dilectus W1k. 
Intermediate tibiz simple; antennz clavate, third and fourth joints minute ; 
max. palpi slender, filiform; abdomen acuminate; intermediate femora often 
with a tooth beneath. 
PTEROMALUS Swederus. —— — 254sp.. (WIk.) Jchn. puparum Linn. 
Femora slender, intermediate beneath setigerous near the tip; body pilose; 
ovipositor concealed or scarcely exserted; antenne 13-jointed, with the third 
and fourth joints annular, fifth moderate sized ; collar very short. 
Obs. The species of this genus are arranged by Walker into about 140 sec- 
tions, the majority of which are unnamed. Some, howeyer, appear equiva- 
lent with the groups indicated in Curtis’s Guide, under the MSS. names of 
Spintherus W7k., Eusela Wik., Lamprotes Wik., and Pterocelis Hal. The 
species still, however, require a careful subgeneric revision, in order to 
place them on a footing with the Miscogasteride and Ormoceride of 
Walker. 
EPICOPTERUS Westw. ——— 1 sp. E. choreiformis Westw. 
Very short, convex, contracted ; antennz short, subclavate, 12-jointed, third and 
fourth joints annular ; fore wings with the humeral portion anteriorly dilated, 
and obliquely truncate at the place of union of the subcostal nerve with the 
costa; abdomen sessile. 
5 Gnatuo Curtis. é . 
METOPACHIA Westw. CeCe fa ? sp. C. dispar Curtis. 166. 
Head gf much broader than the thorax; thorax ovate; collar short ; abdomen fg 
elongate-spatulate ; 9 elongate-conic, flat above, angulated beneath; ovipo- 
sitor not exserted ; antennz 13-jointed, slender, filiform, third and fourth joints 
annular, very minute. 
HETROXYS Westw. Gasrracanruus Westw. ol. 3 sp. G.pulcherrimus Westw. 
Head broad, short ; abdomen three times as long as the thorax, narrow, acumi- 
nated to the tip; collar triangular; antenne slender, 13-jointed, third and 
fourth joints annular ; legs simple. 
CHEIROPACHUS PWestw. Crronymus Curtis. 2 sp. D 
2 
- guadrum Fab. 
Head transverse ; antennz 13-jointed, third and fourth joints annular, three 
terminal joints coalite ; collar short, transverse ; anterior and posterior femora 
6 thick, anterior thickened and notched at the tip 9. Curtis 194. and ZI. Jl. 
WOleriv. pl. 2. ft. 2: 
MEROSTENUS Wik. ———— 1sp. M. Phedyma Wik. 
Narrow, sublinear; head large, transverse ; antenne 13-jointed, third and fourth 
joints minute; thorax long, linear; collar large, subquadrate ; abdomen sub- 
linear, flat ; apex subquadrate ; legs long, simple. 
TRIGONODERUS Westw. —— 22 sp. Tr. obscurus Westw. 
Thorax subovate ; collar triangular; antenne 9 13-jointed, second joint minute, 
F 4 
