No. 22.] HYMENOPTERA OF CONNECTICUT. 227 



Abdomen above practically entirely black; legs stramineous 

 except tibiae and tarsi of hind pair, the former of which 

 is mostly yellowish with two brown annuli, and the latter 

 brown except base of first tarsal joint, which has a yel- 

 lowish annulus; exserted portion of ovipositor nearly twice 

 length of abdomen earinoides 



3. Thorax mostly black 4 



Thorax not mostly black but black and red; abdomen prac- 

 tically entirely reddish 11 



4. Abdomen reddish 5 



Abdomen not unicolorous 6 



5. Length 3.5 mm.; legs black, except brownish articulations, 



and tarsi and hind femora, which are reddish (male) 



erythrogaster 

 Length 6 mm.; legs black; propodeum black; metapleurae 

 partly reddish; ovipositor much longer than body . .perforator 



6. Head and legs mostly pale; wings fuscous 7 



Head mostly or entirely black; legs mostly pale... 8 



7. Length 4 mm.; exserted portion of ovipositor 4 mm. long; 



legs, except tarsi and hind tibiae, mostly brownish, hind 

 tibiae with a dark brown annulus near their base and with 

 their apical third dark brown; dorsum of abdomen black, 

 except apical third of first and second segments, which 



is -yellowish stramineous brittoni 



Length 3.5 mm.; exserted portion of ovipositor 2 mm. long; 

 legs as in brittoni, but pale parts yellowish stramineous 

 and hind femora with all but middle third dark brown; 

 dorsum of abdomen blackish, except second and fourth 

 segments and apical fourth of abdomen, which are yel- 

 lowish to brownish stramineous discolor 



8. Legs as in agilis, as described in paragraph below, except as 



noted in paragraphs 9 and 10 9 



Legs mostly reddish to yellowish stramineous, tarsi of mid- 

 dle and hind legs mostly brown, hind tibiae brownish stra- 

 mineous, but with apical fourth brown and with a brown 

 annulus near their bases; wings pale yellowish; dorsum 

 of abdomen reddish, except apical third, which is black; 

 length 5.5 mm; exserted portion of ovipositor 5 mm. 

 long agilis 



9. Legs colored nearly as in annulipes 10 



Tarsi of middle legs stramineous; wings pale brownish; ab- 

 domen with basal third dark reddish brown or blackish, 



its middle third brownish stramineous, its apical third 

 blackish; length 4 mm.; exserted portion of ovipositor 4 



mm. long annulipes 



10. Wings nearly as in annulipes; dorsum of abdomen blackish, 

 except second segment, which is reddish brown; length 

 4 mm.; exserted portion of ovipositor 3 mm. long . . winkleyi 



