No. 22.] HYMENOPTERA OF CONNECTICUT. 33I 



4. Antennse without a yellowish annulus S 



Antennae with a yellowish annulus 6 



5. Length less than 12 mm 7 



Length 12 mm.; antennae practically entirely black; legs red- 

 dish and black; wings brownish; exserted portion of ovi- 

 positor hardly half as long as abdomen ebenus 



6. Basal half of antennae mostly brownish; legs reddish and 



black; exserted portion of ovipositor more than half as 



long as abdomen. Length 8 mm iroquois 



Male: propodeum maculated; abdomen above blackish beyond 

 fifth segment, except for a whitish spot at apex. Length 

 6 mm lophyri 



7. Length 10 or 11 mm 8 



Length 6-8 mm g 



8. Thorax not partly reddish; abdomen above with first and sec- 



ond segments partly black, apical half of first and second 

 dorsal segments pale fulvous, remaining dorsal segments 

 dull rufo-fulvous; clypeus, scutel, a trilobed mark on pro- 



prodeum, and part of legs, yellowish; wings hyaline 



contiguus 

 Thorax partly reddish; head black with, yellow markings; 

 exserted portion of ovipositor approximately 3 mm. long 



graenicheri 



9. Abdomen above red and black, with a more or less exten- 



sive whitish or luteous band along apical edge of dorsal 

 segments; exserted portion of ovipositor about 2 mm. 

 long; propodeum with a blunt process on each side ..cressoni 

 Abdomen above black beyond third segment, except for an 

 apical whitish spot; propodeum immaculate; exserted por- 

 tion of ovipositor shorter than abdomen lophyri 



10. Abdomen reddish and black above 11 



Abdomen more or less red above, black only on apical fourth 



or beyond, or at extreme base 16 



11. Length 8-10 mm 12 



Length 5-7 mm 14 



12. Abdomen reddish at base above, or black at base above in 



male, hind coxae reddish 13 



Abdomen black at base above, and in some individuals 

 blackish toward apex; first dorsal abdominal segment usu- 

 ally mostly black, rest of dorsum of abdomen mostly red- 

 dish; antennae black; legs, including coxae and trochanters, 

 mostly black except femora, tibiae and tarsi, which are 

 mostly reddish stramineous; fore coxae white in front. 

 Length 10 mm mundus 



13. Abdomen, at least above, yellowish to rufous; its fourth and 



following dorsal segments mostly black; sixth or seventh 

 dorsal segment, or both, more or less white; exserted 



