56 THE CANADIAN ENTOMOLOGIST. 



the sides ; third joint pale. Beneath ochre-yellow, powdered with red 

 with faint markings. Abdomen and thorax beneath rusty brown. 



Expanse 36 m. m. Hab. Lewis Co., N. Y. Collected by Mr. W. W. Hill, 

 of Albany, after whom I take pleasure in naming this handsome species. 



Polia diffusilis, 11. s. 



£. Size large. Eyes naked, lashed. Tibiae unarmed; thorax with 

 a mesial crest; abdomen untufted. Antenna with the joints prominent, 

 brush-like, bristled beneath. Concolorous, dark gray, at first sight recall- 

 ing Apatcla americana. Median lines blackish, dentate and denticulate, 

 approaching a little toward internal margin. No basal dash. Orbicular 

 concolorous, small, rounded, oblique, dark ringed. Reniform renal in 

 shape, dark ringed, touched outwardly with whitish, moderate, not quite 

 upright. Subterminal line very deeply dentate, dividing the more black- 

 ish or fuscous blackish terminal space from the remainder of the gray 

 wing. The median space is perhaps a little darker than the subterminal 

 and basal spaces. The subterminal space is narrow, widening to costa, 

 where there are four costal dots ; between veins two and four it widens ; 

 it is cut into large gray teeth by the line. A fine black terminal line. 

 Fringes gray, interlined. Hind wings concolorous whitish gray, shaded 

 with fuscous. Beneath whitish gray with common line, and discai dot on 

 hind wings. Head and thorax dark gray ; abdomen fuscous gray. 



Expanse 52 m. m. Hab. Lewis Co., N. Y., July. W. W. Hill. 



Tridiolita fistula, 11. s. 



£ °_ . Antennas of the male pectinate, eyes hairy. Superior wings 

 olivaceous, not tinged with red. T. a. line faintly visible, irregular ; t. p. 

 line evident, waved. Subterminal space broad, lighter in shade, glisten- 

 ing. Orbicular spot concolorous ; oval, black margined, uniform, pipe- 

 shaped bowl turned to the base of the wing, white, broken ; outer portion 

 of costal margin cut with white ; fringes concolorous. Inferior wings 

 fuscous, beneath arcuated line and discai spot ; fringes lighter in shade. 

 Thorax concolorous, abdomen fuscous ; a black line on upper portion. 



Expanse 32 m. m. No. 40, J. Behrens. Hab. California. 



This species is congeneric with T. saniapcrta Morr. It is the first 

 Californian representative of the genus. 



Copablep/ia/vn, n. g. 



The genus resembles ArsiloncJie in the lashless naked eyes, and Om- 



