1864.] 39 



cence, as well as the margin beneath the scutelluui ; metathorax thinly 

 clothed with short ochraceous pubescence ; pleura shining. Wings 

 fusco-hyaline, darker towards the tip and having a strong aeneous or 

 violaceous reflection ; there is also a pale spot about the third submar- 

 ginal cell ; posterior wings hyaline at base. Legs rufous, the posterior 

 coxae and femora beneath and the tibial spurs and tarsal claws, black. 

 Abdomen rather short, minutely punctured, the apical segments and 

 the sides of the two basal segments clothed with very short cinereous 

 pubescence ; base of the first segment above with a broad band of 

 ochraceous, scale-like pubescence which extends posteriorly on each 

 side of the segment and is deeply indented on the disk in front ; in a 

 specimen where the pubescence is rubbed off, the surface is more or 

 less rufous ; posterior margin of the second segment above with a rather 

 broad band of ochraceous, beneath which the surface is also sometimes 

 rufous ; the apical segment narrow and rounded at tip, the margins 

 reflexed ; beneath sparsely clothed with short cinereous pubescence, 

 the apical segments with longer yellowish pubescence. Length 3f 

 lines. 



Hah. — Illinois (Mr. Walsh and Dr. Lewis). Two specimens, ((^ill. 

 Ent. Soc. Philadelphia.) 



Genus STELIS, Panz. 

 2. Stelis montana, n. sjj. 



Female. — Head subtransverse, narrower than the thorax, densely 

 and rather strongly punctured, dark olive-green, shining, clothed with 

 black pubescence ; anterior margin of the clypeus truncate ; antennae 

 black, the scape tinged with green. Thorax densely and strongly 

 punctured, dark olive-green, shining, clothed with rather long black 

 pubescence, which is more dense beneath the wings ; the mesothorax 

 in front with a finely impressed longitudinal line, and on each side 

 just above the tegulae a short impressed longitudinal line; metathorax 

 tinged with deep blue ; tegulfe dark blue, closely punctured, shining. 

 Wings subhyaline, costal half of the marginal cell fuscous ; nervures 

 black. Legs dark bluish-green, punctured, clothed with blackish pu- 

 bescence. Abdomen subglobose, rather wider posteriorly, densely, 

 strongly and confluently punctured, dark olive-green, shining, clothed 

 above and beneath with rather sparse, short, black pubescence. Length 

 •4 lines. 



