46 EDWARD NORTON. 



5. ABIA, Leach. 

 Abia, Leach, Zool. Misc. 

 Tenthredo, Jurine, Fab. 



Wings as in Zarea. 



Antennse seven-jointed ; tliird article long and bent ; club obtuse, of 

 three articles, the two last coalescing. 



Head small, eyes nearly meeting behind in male; nasus and labruni 

 as in Zarea ; joints of maxillary palpi unequal. 



B(j<li/ villose; abdomen having a metallic silken hue as in Ziirrn ; a 

 raised velvety patch on the tergum in males (wanting in females); ba- 

 sal plates not emarginate. 



Legs rather short, slender; femora not incrassate, tibia) with rather 

 obtuse spurs. 



These insects are of smaller size and apparently gregarious. 



1. Abia Kennicotti, n. sp. 



Black, varied with blue and green; legs white, at base blue; wings yellow 

 hyaline, with jjiceous fasciiB. Length 0..32. Br. wings 0.6-t inch. 



% . Antenntx) black ; third article not so long as the fourth and fifth 

 together; sutures of club distinct. Head metallic-green, coarsely punc- 

 tured, eyes nearly meeting ; nasus hardly retracted, curved, but sli<ihtly 

 emarginate; labruiu pointed, oval, and with the mandibles ferruginous; 

 palpi varying in color; head, thorax and tip of abdomen covered with 

 sparse, long, blackish cinereous hair. Thorax black above, pleura 

 greenish, pectus bluish; abdomen with metallic reflections; a brown- 

 ish velvety patch on the summit of third, fourth, fifth and sixth seg- 

 ments, with a shining cinereous band of short hair on each side; edges 

 of abdomen beneath, brownish; coxae and femora blue; tips of femora 

 and remainder of legs white ; tarsi growing darker toward apex ; spurs 

 not very obtuse. Wings hyaline ; on the apex of superior pair and 

 the basal half below stigma two fuscous obscure fasciae, in the larger of 

 ■which the first discoidal and second brachial are clear ; nervures testa- 

 ceous, stigma a little enlarged, with a dense spot beneath the base; 

 lower wings smoky hyaline. 



5 . The female has the tergum beyond the second segment sericeous 

 with whitish hair. 



2. Abia caprifolium, n. sp. 



Black, with faint greenish reflections on abdomen; two white bands at base 

 of nietathorax ; wings fasciate. Length 0.36. Br. wings 0.70 inch. 



9 . Antenn;\3 ferruginous toward tip, third joint not longer than 

 fourth and fifth together ; sixth and seventh closely soldered, the apex 

 truncate; eyes reniform; nasus slightly emarginate; palpi white; head 

 and thorax delicately punctured and covered with long pale hair; a 



