THE CANADIAN ENTOMOLOGIST. 4 



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with orange, mottled with the ground color, most heavily just below the 

 subdorsal band. Hair not thick, reddish, both on the back and sides. 



Food-plants. — Alder (Alnus), apple, etc. 



Habitat. — The Pacific Northwest, from the Cascade range to the sea. 

 Found abundantly at Seattle, Washington, and rarely at Portland, Oregon. 



The moths do not differ from Stretch's description of C. fragilis, 

 except that in the ? there is no broad, brown band on the forewings, but 

 a diffuse shade outward from the inner dark line ; in some specimens also 

 bordering the undulated pale outer line. A larger series of specimens 

 than I possess will probably show further differences, though the species 

 is closely related to C. fragilis. 



Clisiocampa incurva, Hy. Edwards. 



1882 — Hy. Edw., Papilio, ii., 125. 



The larva of this species is unknown. I have examined the moths in 

 the collection of Mr. B. Neumoegen. and they seem closely allied to C. 

 fragilis. They differ from any other species of this group in that both 

 sexes are pale. The male is suffused with brown on the forewings, the 

 lines pale, bordered inside with brown, so that in pale specimens the lines 

 look brown. The female is the same, but browner, so that the lines are 

 always pale, the outer waved, the inner sometimes rather faint, so that its 

 brown edge is the more distinct. In both, the brown is deeper between 

 the lines than outside them. I am not inclined to give much weight to 

 the character from which the species was named. Clisiocampa, like 

 Daiana, cannot be separated by the position or shape of lines, but by 

 the difference in the relative coloration of similar markings. In Clisio. 

 catnpa, both sexes are needed for a determination. The following table 

 will separate the larva? here described. C. incurva, only, is unknown. 



§1. A dorsal row of rounded spots. 



One spot on each segment, - disstria, Hbn. 



Two spots on each segment. 



A broad, distinct, subdorsal blue band, - erosa, Str. 

 No distinct subdorsal band ? - - tlioracica, Str. 

 §2. A dorsal line, continuous, broken or absent. 



A continuous, narrow white line, - americana, Harr. 



Dorsal line, if present, not white ; often absent. 

 Line irregularly broken or absent. 



Lateral region heavily blue shaded. 



