THE CANADIAN ENTOMOLOGIST 97 



distinct from type inqiiinata. But the Winnipeg specimen in 

 question has an obvious t. p. line, which the type variana lacked, 

 so that its identity is open to doubt. It is at any rate probably a 

 species not at present in my collection and may be a pale inquinata. 

 My Calgary specimens are about the colour of inquinata type, but 

 lack all traces of a t. p. line, though some show traces of blackish 

 in the cell. Besides the two before mentioned I have two males 

 taken at lighten Sept. 8th, 1906. 



366. Hydrcecia nictitans Bork. — I feel bound to follow Hamp- 

 son in treating the North American species as identical with the 

 European nictitans. Smith himself referred "Var. americana 

 Speyer" to his atlantica, so that the former name should have 

 preference in any case. A female type of atlantica from Ithaca, 

 N. Y., is in the Washington Museum. No clear differences are 

 pointed out, in fact the impossibility of distinguishing it from the 

 European form except by male genitalia is admitted. Its range 

 is given as "Nova Scotia, Hudson's Bay, Southward to Virginia, 

 West to Colorado". Interoceanica was described from three speci- 

 mens from Winnipeg only. I have none from there exactly, but 

 have seen a pair of types. It was characterized as small and very 

 dark in colour, with the ordinary markings almost blackish, and reni- 

 form white. The latter character is of course variable in nictitans. I 

 compared Smith's types and did not consider them distinct, nor did 

 they strike me as variations worthy of remark. Pacifica was stated 

 to range from California to Vancouver and to be more compactly 

 built than atlantica or nictitans, and a little more lightly shaded, 

 "the secondaries yellowish or purplish red and somewhat silky, 

 quite different from the eastern examples". I have no Californian 

 examples, but numbers from Vancouver Island, and their variation 

 is much like that of eastern specimens. Concerning his three new 

 names Smith writes in his Revision ; "These three species I could 

 hardly have dared to separate from nictitans had it not been for 

 the differences in structure in the male genitalia; but these are so 

 radical that specific identity is out of the question". Four 

 genitalic species are claimed for the British Isles, some of which 

 are said to be locally constant in some superficial characters. 

 Hampson unites them all as one species, but quotes six names as 



