NO. 1206. ICHNEUMON FLIES— ASHMEAD. 7 



racic truncature, remote from the scutellum, the body short and com- 

 pressed, the ovipositor not or at most subexserted; head viewed from 

 above transverse, the temples never very broad. 



Subfamily I. evaxiin.e. 

 Pronotum elongate, conical, never transverse linear, abdomen attached to 

 the base of the metanotum just behind the scutellum, the body very 

 long, usually long, sickle-shaped, compressed; the ovipositor long or 

 always strongly exserted; head viewed from above subtriangular or 

 obtrapezoidal, the temples oblique but very broad or broad, more rarely 



globose Subfamily II. gasteruptionin^. 



2. Front wings most frequently with two recurrent nervures, the second sometimes 

 subobsolete, rarely wholly absent; hind wings with a distinct median 

 cell; abdomen clavate, not strongly compressed, the ovipositor exserted. 



Subfamily III. aulacin^. 



SulDfamily I. EV^]SriIISr..^E. 



1900. Evaniiniv, Subfamily II, Ashmead, Smith's Insects of New Jersey, p. 563. 



The position of the antenna?, the venation of the front and hind 

 wing'.s. as well as the shape of the abdomen, readily distinguish this 

 group from the Aidachia\ ^\h.\\<^ from the Gasteruptioninm it is at 

 once separated l\v the shape of the head, the very short truncate pro- 

 notum, and the short, strongly compressed, hatchet-shaped abdomen 

 and its attachment to the metathorax. 



All the species falling in the subfamil}^ are parasitic in the eggs of 

 coclvroaches. Evan! a ap2)end!gaster Linna?us, a species now widely 

 distri))uted to all parts of the world, has been frequently bred from 

 the eggs of these insects. In Florida I have reared it from the eggs 

 of l\ripJaneta americana Linna?us and P. audndasim Fabricius. I 

 have also a specimen of Ilyptia dorsalis Westwood, bred b}^ Mr. 

 Weed, in ^Mississippi, from the eggs of Isdmoptera peniuylminica 

 De Geer. 



Only two genera are known, distinguished as follows: 



TABLE OF GENERA. 



Front wings witliout a marginal cell and also ivithout cubital and discoidal cells. 



(1) Ilyptia Illiger. 

 Front wings ic'dh a marginal cell and also with one or two discoidal cells. 



(2) Evania Fabricius. 



Sulolamily II. G-^STEnXJFXIO]NrilS".^3E. 



This group, or subfamily, is at once separated from the Aulachue 

 by the insertion of the antennae, the venation of front wings, and by 

 the attachment of the abdomen, which is joined to the metathorax just 

 behind the scutellum. 



It approaches nearest to the Evaniirue^ but is easily separated ))y the 

 quite ditferent shaped head, which is long, obtrapezoidal, as viewed 

 from al)ove; by the very long conical pronotum; by the abdomen, 

 which is very long, narrow, and strongly compressed, and attached 



