No. 22.] HYMENOPTERA OF CONNECTICUT. 24I 



E. appendigaster Linnaeus. Howard, Insect Book, PI. i, 

 Fig. I. 



Has often been bred from the egg-capsules of the cock- 

 roaches. 



Evaniella Bradley. 



°E. semaeoda Bradley. 



Entirely or almost entirely black ; somewhat more than 5 mm. 

 long; face sparingly punctate; thorax densely and coarsely punc- 

 tate. 



Pristaulacus Kieffer. 

 Key to Species. 



1. Claws with four teeth beneath 2 



Claws with only three teeth beneath; anterior border of pro- 

 thorax rounded, toothless 4 



2. Anterior border of prothorax rounded, toothless; thorax 



not hunched; wings mostly violaceous and with a yellow 



hyaline band beneath stigma fasciatus 



Anterior margin of prothorax toothed, or with a distinct spine 3 



3. Medial mesothoracic lobe strongly gibbous niger 



Medial mesothoracic lobe not strongly gibbows flavicrurus 



4. Body longer or shorter than in subfirtnus, and legs differently 



colored 5 



Length 13.5 mm.; legs black subfirmus 



5. Femora fuscous 6 



Femora red; length 16 mm.; rest of legs fulvous resutorivorus 



6. Length 14.5 mm.; legs rufous abbotti 



Length 10 mm.; legs yellow stigmaterus 



°P. (Neaulacus) fasciatus (Say). 



'P. (Pristaulacus) niger (Shuckard). 



'P. (P.) flavicrurus (Bradley). 



'P. (Oleisoprister) subfirmus (Viereck). 



'P. (O.) resutorivorus (Westwood). 



'P. (O.) abbotti (Westwood). 



'P. (O.) stigmaterus (Cresson). 



01 



Odontaulacus Kieflfer. 

 Key to Species. 



Abdomen with second segment and apex of first dull claret- 

 red, rest black; hind femora and tibiae dark brown . .bilobatus 



Abdomen red; fore and mid legs reddish, femora dark brown 



abdominalis 

 16 



