390 



3- Abdomen distinctl.v petiolatc, the lirst tergite subcylindrical, hind 



femora simple, not toothed z.Spathius perdebilis Perkins 



Abdomen with the first tergite flattened, but little narrower than 

 the third^ hind femora incrassate and toothed beneath. 



3. Euscclinus peregrinus Perkins 



4. First tergite about one and one half times as broad as long, ab- 



domen oval, hind wings of male with pseudostigma. 



4. Heterospilns prosopidis Viereck 

 First tergite not broader than long, abdomen more elongate, 

 hind wings without a pseudostigma 5 



5. Subdiscoidal nervure continuing in the same line with the dis- 



coidal, abdomen with transverse row of crenulate sulci on tergites 



3-5 5. Honnioptenis vagrans n. sp. 



Subdiscoidal nervure arising from the interbrachial nervure, ab- 

 domen without transverse row of crenulate sulci except on tergite 

 three 6 



6. Female and male pale testaceous, thorax and abdomen often 



much infuscate but the parapsidal furrows always pale, third 

 tergite without a crenulate furrow. 



6. Ischiogonus palliatiis (Blackburn) 

 Female with the head pale, thorax and abdomen black, male 

 pale testaceous, third tergite with a crenulate furrow. 



7. Ischiogonus palllciiccps Perkins 



28. A Xkw Immigrant HoK.MiorTEBUs. 



Hormiopterus vagrans n. sp. 



Female: Head brownisli-yellow, eyes black, mandiljlcs and antennae 

 infuscate toward apex : thorax and abdomen dull reddish brown, pro- 

 podeum and first tergite black, the other tergites more or less dark 

 on the disk; legs pale testaceous, the tarsi a little infuscate at apex; 

 ovipositor sheaths black apically, paler at l)ase: wings subhyaline, 

 iridescent, the nervures blackish, paler apically. stigma and costa ex- 

 cept at apex pale testaceous. 



Antennae about 35-jointed, about as long as the entire l)ody, all 

 the joints longer than broad, first flagellar juint a little longer than 

 the second ; face tliinly hirsute, finely granular, with shallow indefinite 

 punctures ; eyes rounded, exceedingly slightly emarginate opposite the 

 antennae, malar space broad; genae a little broader below; ocelli in a 

 very small triangle, separated from eacli other by but little more than 

 the diameter of one, much nearer to each other than to the eye mar- 

 gin; front, vertex, and occiput minutely tessellate ; occiput and vertex 

 with the hairs directed forward. 



]\Iesonotum roughly tessellate or granular, hirsute, the parapsidal 

 furrows converging behind and meeting at about two-thirds of the dis- 

 tance to the scutellum and continued to it in a broad shallow rugulose 



