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 gibbous flavicnirus 



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



colored S 



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 stigmatenis 



°P. (Neaulacus) fasciatus (Say). 



°P. (Pristaulacus) niger (Shuctard). 



°P. (P.) flavicrurus (Bradley). 



°P. (Oleisoprister) subfirmus (Viereck). 



®P. (O.) resutorivorus (Westwood). 



°P. (O.) abbotti (Westwood). 



°P. (O.) stigmatenis (Cresson). 



Odontaulacus Kieffer. 

 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 



