154 T.. T. CRKSSON. 



each side just, above the clypeus). a spot on each side of clypeus, spot 

 on mandibles, palpi, spot on tegulae, another in front and a line be- 

 neath, a cordate spot on scutellum, tips of four anterior femora, their 

 tibiae and tarsi within, and a stripe on posterior tibiae at base, all 

 white ; postpetiole suddenly dilated, punctured and shining. Length 

 % .50 inch. 



52. jejunus. 



Jsc/ums Jejtuius, Cress. Proc. Ent. Soc. Phil. iii. p. 18*3, % . 

 Hah. — Mass., N. Y., III. A slender black species, with a faint 

 bluish tinge on abdomen, the po.stpetiole of which is narrow and 

 nearly smooth; the face entirely, clypeus, orbits, scape beneath, 

 tegulae, line before and short one beneath, two short lines on disc 

 of mesothorax, scutellum, spot on four anterior cox;e beneath, their 

 trochanters, four anterior legs in front and line at base of posterior 

 tibiae behind, all white; wings hyaline. Length S .50 — .00 inch. 



58. sublatus. 



Jxrhuus suh/afus, Cress. Proc. Ent. Soc. Phil, iii, p. lsr>, % . 

 var. Jschitiis proximiis, Cress, id. p. 187, % . 



Hah. — Can., N. H., Mass., Pa., Va., 111. This is a slender rather 

 shining, black species, with the face, orbits, clypeus, mandibles, palpi, 

 scape bem^ath, upper margin of prttthorax. teguke, line beneath, some- 

 times a .spot on disc of mesothorax, .scutellum. spot behind, two spots 

 on metathorax behind, four anterior coxtc, their femora within, their 

 tibiae and tarsi entirely, sometimes a spot at tip of posterior coxae 

 beneath, basal half of their tibiae, and base of their tarsi, all white; 

 antenna? very long and slender; wings hyaline; abdomen narrow, 

 cylindrical, postpetiole narrow, smooth and shining; gastrocoeli shal- 

 low. Length % .50 — .60 inch. 



The ww'xGiy pro.iinins has a whitish annulus on flagelluiM a little 

 beyond the middle, the hind coxae are black beneath, but almost 

 entirely white above, and the postpetiole has two white s{>ots <»r a 

 band at tip. 



54. Azotus, Cress. Proc. Ent. Soc. Phil, iii, p. 150, S . 



Jlah. — Mass., ^Del., Va. This very pi'etty species has a slender 

 form, and rather largo head. It is of a dull black color, the abdomen 

 which is cylindrical, having a decided bluish tinge; the wings clear, 

 slightly clouded at tips; the face, broad orbits, clypeus, mandibles, 

 palpi, scape beneath, upper margin of ]»rothorax, two short lines on 

 dise of mesothorax. teguUe, line beneath, scutellum, spi>t behind, four 



