No. 22.] HYMENOPTERA OF CONNECTICUT. 87 



men, and edge of basal plates, white; middle tibiae and tarsi, 

 posterior femora and tibiae in great part, and five apical ab- 

 dominal segments, rufous. Length 13 mm formosa 



25. Scutellum smooth, polished, impunctate; body rufous or 



yellow, with an irregular spot above ocelli, a spot on the 

 center of each lobe of mesonotum, basal plates for the most 

 part, a small spot on the posterior coxae, trochanters, and base 



of femora above, black. Length 13 mm rubripes 



Scutellum finely, densely punctate; body black, clypeus, la- 

 brum, mandibles, cheeks, orbits, posterior margin of post- 

 ocellar area, supraclypeal area, collar broadly, tegulae, 

 V-spot, scutellum, postscutellum, pleurae except sutural 

 lines, pectus, legs except a black line above on femora, 

 and abdomen except basal plates, yellow. Length 12 mm. causata 



26. Posterior coxae black at base; body black, with clypeus, la- 



brum, mandibles, cheeks, orbits except at top of eyes, 

 V-spot, spot on side of pronotum, collar, tegulae, an angu- 

 lar mark on pleurae, pectus in part, spot above posterior 

 coxae, sides of basal plates, apical portion of coxae, tro- 

 chanters, femora except above, front and middle tibiae and 

 tarsi except above, and basal half of abdomen beneath, 

 white; abdomen rufous beyond second segment. Length 



10 mm angulata 



Posterior coxae wholly pale 27 



27. Posterior orbits black; body black, with clypeus, labrum, 



mandibles, face above and beneath antennae, inner orbits, 

 tegulae, collar, angular spot on pleurae and the basal half of 

 venter, white; legs whitish except a black line at apex of ante- 

 rior femora and base of tibiae above, middle femora and tibiae 

 above, posterior femora and tibiae for the most part ; five apical 



segments of abdomen rufous. Length 13 mm eximia 



Posterior orbits wholly pale 28 



28. Abdomen with four basal segments black; body black, with 



clypeus, labrum, mandibles, face above and below anten- 

 nae, anterior and posterior orbits, collar, tegulae, spot on 

 pronotum, pleurae for the most part, pectus and sides of 

 basal plates, white; legs yellowish rufous, except apex of 

 front femora above, basal half of front and middle tibiae above, 

 middle and posterior femora above, and basal third of poste- 

 rior tibiae, which are black. Length 13 mm simulata 



Abdomen with three basal segments black; body black, with 

 clypeus, labrum, mandibles, face above and below anten- 

 nae, anterior and posterior orbits, collar, tegulae, pro- 

 notum at sides, pleurae for the most part, and pectus, yellow; 

 legs yellow, except line on front femora at apex above, 

 front tibiae above, middle femora and tibiae above, and hind 



