No. 22.] HYMENOPTERA OF CONNECTICUT. 99 



Abdomen black, apical margin of segments margined with 

 yellow; body black, with two basal segments of antennae, 

 clypeus, labrum, mandibles at base, collar broadly, tegulae, 

 rounded spot on mesopleurae, legs beyond apices of coxae 

 except apex of posterior femora and tibiae, basal plates, and 

 dorsal apical margin of abdominal segments, broader be- 

 hind, white or yellow. Length 9 mm succincta 



36. Postocellar area separated from posterior orbits by deep, 



well-marked vertical furrows; body black, with two basal 

 segments of antennas, clypeus, labrum, V-shaped spot on 

 collar, tegulae, scutellum, legs beyond apices of coxas ex- 

 cept apices of posterior femora and tibiae, an elongate spot 

 on outer upper side of posterior coxas, and basal plates, 

 yellow; upper orbits polished, almost entirely without 



punctures. Length 11 mm melanopleura 



Postocellar area not distinctly separated from upper orbits, 

 vertical furrows feeble (See sec. 23) intermedia 



37. Pleurae with a large oblique white mark; body black, with 



apex of antennae, supraclypeal area, clypeus, labrum, man- 

 dibles at base, pronotum in great part, V-spot, scutellum, 

 postscutellum, large mark on pleurae, spot at base of hind 

 wings, front and middle coxae, trochanters, and basal half 

 of femora, a spot on hind coxae, their apices, trochanters 

 and basal half of femora, and basal plates in part, white; 

 two basal segments of antennae, tegulae, remainder of legs 

 except apical half of femora, and abdomen except basal 

 plates in part and terguni of first segment, rufous. Length 



10 mm f ascialis 



Pleurae wholly black; body black, with apex of antennae, 

 clypeus, labrum, mandibles at base, collar, V-spot, scutel- 

 lum, postscutellum, apical half of front and middle coxae, 

 front and middle trochanters, basal half of front and mid- 

 dle femora, hind coxae beneath and a large spot on the 

 outer side, hind trochanters, basal half of hind femora, 

 and hind tarsi, white; basal segment of antennje, tegulae, 

 remainder of legs except apices of .tibiae, and abdominal 

 segments two to five, rufous. Length 10 mm varia 



°M. nidonea MacGillivray. 



°M. ornata MacGillivray. 



M. epinota (Say). Connecticut (E. N.) ; Hartford 

 (Nason). 



°M. texana Cresson. 



M. trosula (Say). Connecticut (E. N.) ; New Haven, 30 

 May, 1910 (W. E. B.). 



