No. 22.] HYMENOPTERA OF CONNECTICUT. 1 55 



Median fovea flat, without a papilla at center, somewhat X- 

 shaped; hind wings with cell Ri +2 angulated at apex below, 

 with a spur; body black, with tegulae and legs below 

 knees, except apices of tibiae and greater part of tarsi, 

 white; saw-guides strongly convex above and below and 

 rounded to a point at apex. Length 6 mm aperta 



6. Scutellum punctate at sides y 



Scutellum finely striate at sides; body black, with tegulae 



and legs below knees, except apices of tibiae and tarsi, 

 white; median fovea an elongate furrow; saw-guides broad, 

 straight above, convex below, obliquely truncated at apex. 

 Length 6 mm angulata 



7. Median fovea with a large rounded papilla at center; body 



black, with tegulae, and legs, except tips of middle and pos- 

 terior tibiae and tarsi, white; hind wings with cell Ri +2 

 angular below at apex, without a spur; saw-guides straight 

 above, and convexly obliquely rounded from base to apex 



below. Length 6 mm adusta 



Median fovea flat, without a papilla at center ; body black, 

 with tegulae and legs below knees luteous; hind wings with 

 cell R1+2 rounded at apex, without a spur; saw-guides broad, 

 straight above and below, broadly convexly and somewhat 

 obliquely rounded at apex. Length 6 mm acuminata 



B. carbonaria (Cresson). Selandria carbonaria Cresson. 

 B. spiraea? Dyar. Larva feeds on Spircca salicifolia. 



B. abnorma MacGillivray. 



B. antennata MacGillivray. 



B. aperta MacGillivray. 



B. angulata MacGillivray. 



B. adusta MacGillivray. 



B. acuminata MacGillivray. 



Erythraspides Ashmead. 

 Key to Species. 



I. Mesonotum rufous 2 



Mesonotum shining black; body black, with apices of coxa?, 

 trochanters, and legs beyond knees, white; posterior tibiae 

 infuscated; pentagonal area and V-shaped furrow wanting; 

 front without lateral foveae; saw-guides straight above and 

 below, broadly convexly rounded to a blunt apex ; wings in 

 female infuscated; male with wings clearer at apex. 

 Length 5.5 mm parvus 



