HYMENOPTERA. — PROCTOTRUPIDE, 173 
the Mymarides as more nearly allied to the last-named family than to 
the present, relying on the structure of the thorax, and the position 
of the petiole; which, however, presents a marked peculiarity. (Ent. 
Mag. No. 4. p. 343.) 
Proctotrupes, in the tubular form of the terminal joints of the 
abdomen, approaches the Chrysidide ; whilst Bethylus (Omalus 
Jur.) has the veins of its wings similar to those of Hedychrum, but 
in its habits it is more analogous to Stigmus amongst the Fossorial 
Aculeata, to which it is asserted to belong by Haliday (Ent. Mag. 
No. 3. p. 276.) and Walker (Ditto, No. 20. p. 411.). Some species, 
in the apterous condition of the females (Gonatopus, Scleroderma), 
resemble some of the Mutillide, as Methoca and Myrmosa; whilst 
Pristocera, Epyris, and some undescribed genera, make a very close 
approach to Meria and Tiphia amongst the Fossores. 
Regarding the Mymarides as belonging to the Proctotrupidz, on 
account of the diversity of the antennz in the opposite sexes, and of 
the absence of veins of the wings (thus resembling Diapria, the family 
will comprise the six following subfamilies, corresponding with the 
divisions proposed by Mr. Haliday in the Entomological Magazine, 
vol. i. p. 269. : — 
1. Mymarides. Head transverse areolate ; antennz inserted above the 
middle of the face, g¢ long, slender, and elbowed, ¢ clavate ; 
mouth destitute of palpi; wings narrowed, densely ciliated, with 
a very short subcostal nerve. 
2. Platygasterides. Abdomen sessile, depressed, first segment not 
campanulate; antenne elbowed, 10- to 12-jointed, inserted near 
the mouth. 
3. Ceraphrontides. Abdomen subsessile, campanulate, terminal and 
ventral segment carinated ; antennz elbowed, inserted near the 
mouth ; wings nearly exareolate. 
4. Gonatopides. Abdomen convex, not campanulate, last ventral 
segment carinated ; antenne porrected, 10-jointed; hind wings 
lobed; mandibles toothed. 
5. Proctotrupides. Abdomen subsessile, campanulate; antennz por- 
rected, 12-jointed, inserted beneath the front; maxillary lobe 
bipartite. 5 
6. Diapriides. Abdomen petiolated, campanulated ; antennz inserted 
in the front, 12- to 15-jointed ; maxillary palpi long, 5-jointed. 
