THE CANADIAN ENTOMOLOGIST. 239 



Simcethis diatta, Zell. Isis, Vol. 30, p. 208 (1846). 



Amphisa luridana, Walk. Cat. Lep. Het., 28, p. 318 (1863). 



Expanse of wings, 15-17 mm. Head, thorax and fore wings green, 

 the latter with the first cross line dark brown or black, much thicker on 

 the costa and giving off two outward angles. Second line gives off an 

 acute angle beyond the cell and another on vein 2. Both of these lines 

 are bordered more or less widely with white or greenish-white and more 

 or less diffused. The median shade is represented by a dark brown 

 angulated line from the cell to the hind border, but this is often obscured 

 by the white shade on this part of the wing. Hind wings uniformly dark 

 fuscous. All the fringes dark fuscous, but with a lighter streak through 

 the middle. 



I have long had this species in my collection from American 

 localities, having received it from Halifax, N. S.; White Mts., N. H., 

 and I also took several specimens in June, 1S77, at Orono, Me., in an 

 open pasture. Walker described it from St. Martin's Falls, under the 

 name of Amphisa luridana. I have also a dark variety of this species 

 from Prof C P. Gillette, taken in Colorado. 



The early stages and food plant are unknown, but Hartmann states 

 that he found it on the wing near Munich in June and July between a 

 pine forest and a juniper. The pasture in Orono where it was taken had 

 more or less juniper (Juniperiis coimnunis) scattered over it, and was by 

 the side of woods containing pine, spruce and other evergreen trees, but 

 as there were many other kinds of plants in the immediate vicinity, I do 

 not think this at all conclusive or even hardly suggestive concerning the 

 food plant of this insect. 



Genus HEMEROPHILA, Hiib., Tentamen (1806). 



Head smooth and rounded ; labial palpi medium, slightly curving up 

 in front, strongly roughened beneath, third segment short and blunt ; 

 proboscis present, short and scaled at the base ; ocelli present ; antennae 

 half the length of the costa or a little more, simple in the female, ciliated 

 in the male. Thorax smooth, hind tibiae hairy along the upper side, 

 middle and hind tibite thickened with scales at the middle and end. 



Fore wings ovate or somewhat triangular, with acute apex and twelve 

 separate veins : i with a long fork at the base ; 2 arises from the outer 

 third of the median vein, 3 to 10 arise at nearly equal distances from each 



