THE CANADIAN ENTOMOLOGIST. 319 



different types, and his selections agree, except in one instance, with my 

 tentative separation on superficial characters. 



After the sketches were made and verified, every other male in the 

 series where the sexual structures were not fully retracted was closely 

 examined, the scales being removed wherever necessary, so as to make 

 sure of the correctness of the association. It is interesting to note that in 

 the whole of what may be termed the imtabilis series the penis sheath is 

 unusually long, and is furnished at tip with a very long corneous spine, 

 set at right angles to the stem. I am aware that I should have examined a 

 series of females to determine the function of this structure, if possible ; but 

 that can be easily done later by some younger man with more leisure than I. 



It was also noted that there were two types of uncus represented ; 

 one with a spear-shaped tip, the other tapering to a normal point. I am 

 not quite sure how much absolute value should be attributed to this. Ail 

 the eastern males, hibisci and insiabilis, and all the Calgary males, have 

 the spear-shaped tip. With one exception all the western forms, pacifica 

 "Auct.," have the slender, gradually pointed tip. 



The common eastern form will, if Guenee's description based on a 

 picture is accepted, be known as hibisci, with confluens Morr. as a synonym, 

 and of this I have at present one 9 from Long Island, N. Y. The more 

 normal type, which is ifistabilis Fitch, is represented from New Jersey to 

 Maine, Canada, and westward to Decorah, Iowa, and Volga, So. Dakota. 

 It has a reddish-gray base, is mottled with darker brown, slender, trans- 

 verse strigge, not so closely placed as to obscure the maculation, s. t. line 

 fairly marked, with obvious reddish-brown preceding shades. The median 

 lines tend to become lost, especially in the female ; but they are usually 

 traceable as shadings if not otherwise. The reniform is always, the 

 orbicular is usually uniformly dusky, and outlined by a narrow pale line. 

 A reddish or somewhat dusky median shade may or may not be obvious. 

 On the whole the species is a quietly-marked one, and its dominant 

 impression is of a reddish-gray form. 



The male genitalia are characteristic. The uncus is spear-shaped at 

 tip, the clasper long, stout, curved, scarcely dilated medially ; the harpes 

 are inferiorly drawn out into a long tip, in an almost direct continuation 

 of the inferior margin ; upper angle acute, but not drawn out, the tip 

 oblique and not arcuate. Reference is made to figure i of Plate VIII for 

 a better understanding of the structure. 



An intensification of this type occurs in Colorado, and may be known 

 as Briicei. It is brighter, more reddish-gray, the transverse strigae are less 



