EDWARD NORTON. 253 



clibles slender, second tooth retracted, with a smaller tooth below; a small 

 spot lihout the ocelli, the nietathorax and a large spot upon the tergum, 

 black ; (the male has all the thorax above and all the tergum, except 

 the apex, blackish) ; legs of one color, the posterior tibije and tarsi 

 fuscous; inner tooth of claw minute, rather sharp, near middle of claw. 

 Wings hyaline, stigma and costa pale; marginal cross nervure straight, 

 second recurrent nervure received between the middle and base of 

 third submarginal cell. 



Var. Color almost entirely ochraceous. (Mass.) 



Maine, Mass., Md., Satkatchewan, (Smiths. Inst.) 



Taken in April for successive years in Baltimore, by Mr. Uhler, on 

 Amelanchier canadensis. The antennae are much like those of Athalia. 



17. S. montana. 



Selnnch-ia montana, Cresson, Proe. Ent. Soc. Phil, iv, 244, .3, 9- 

 '•"Whitish: vertex and mesothorax brownish; antennae pieeous, dorsal sur- 

 face of abdomen shining black ; wings tinged with yellowish fuscous; legs pale 

 blackish at tijjs. Length Zh lines. Br. wings 7i lines. 



9 . Head whitish, finely pubescent; the vertex, occiput and stains 

 on the cheeks pale brownish; tips of mandibles pieeous; antennae 

 short, i)iceous, proportions as in *S'. duhia. Thorax whitish, minutely 

 punctured, finely pubescent; mesothorax, scutellum, part of metatho- 

 rax, a stain on each side of the pleura beneath and another just be- 

 neath the wings, brown; teguhu whitish. Wings ample, subhyaline, 

 iridescent, the anterior pair uniformly tinged with pale yellowish fus- 

 cous, the posterior pair hyaline, faintly dusky at tips; nervures fus- 

 cous, the costal nervure, except the outer margins, the stigma, except 

 a spot in its middle, and the nervures at the base of the wings, pale; 

 posterior wings with two middle cells. Legs whitish, their femora 

 tinged with fulvous ; the four anterior tibiae behind (slightly inter- 

 rupted in the middle), base and apex of the posterior tibiae within and 

 most of the tarsi blackish. Abdomen shining black above ; the ex- 

 treme sides, apex and the venter entirely whitish." 



Colorado. One 9 . (Coll. Am. Ent. 80c.). 



The breast is white. The apical joint of the antenn;^ is more slen- 

 der than the preceding, the three apical joints of palpi clavate, the fi- 

 nal joint the longest, the inner tooth of claw large and very near the 

 tip. 



