54 " THE CANADIAN ENTOMOLOGIST. 



more to luteous and less to red, and the outer line is occasionally 

 crenulate, suggesting Caiiforjiica, of which, however, I have not seen 

 authentic specimens. In two females no dark colours are on primaries, 

 except the edges of the otherwise concolorous central band, and dark 

 marks on fringes (? var. perhitea^ Neum. and Dyar). In some seasons the 

 larva* are very abundant, their nests being especially conspicuous on dwarf 

 species of SaUx. They also appear to favour wild gooseberry and rose, 

 but are very rarely found on aspen. The imago comes to light from about 

 the middle of July to the middle of August, though in nothing like the 

 numbers that might be expected from the abundance of the larvt^. I 

 cannot see that the form differs, in the imago at any rate, kom pluvialis^ 

 recorded by Dr. Dyar in the Kootenai list. I have exchanged specimens 

 with Dr. Dyar, and lie says of the Calgary form : "More nearly resembles 

 pluvialis than fragilis. Perhaps you are where tlie two forms run to- 

 gether." Some of the species of this genus seem very obscure, and I 

 believe are more distinct in the larval staple. This I regret that I have 

 not yet closely studied. 



450. J/, disitria, Hbn. — Mr. Hudson found a brood feeding on 

 aspen pojtlar ( J\ trcinuloidcs ) in 1902, from which seven males and five 

 females were bred, all emerging betsveen luly 31st and Aug. 2nd. I came 

 across another brood, also upon aspen, during June of the past year 

 (1905). IJeyond these wc have never met with the species. Mr. (Iregson 

 takes it in the ]>lackfalds district. Dr. Fletcher, in his report to the 

 Director of Experimental Farms for 1904, stales that on July 21st of that 

 year he found two destructive colonies of what he l>elieved to be this 

 species on aspens, near St. Albert, ten or twelve miles north-west of 

 Edmonton. In one case a i)atch of many acres was infested, and "the 

 moths were in thousands, and were just emerging from their cocoons.'' 



451, Epicnaptcra Aiiicricaua, 1 Firr. — Rather rare. Middle May to 

 middle June. Light. My (;nly 9 ^vas bred from a larva found full-grown. 

 I did not discover the food i^lant, bui believe it to have been Amclanchier 

 alnifolia, here known as Saskatoon. Rev G. W. Taylor, of Wellington, 

 B. C, tells me that he has often reared it on alder, but here that is far 

 more locah- than the moth. 



Y<ix. fer?'tigijiea^ Pack. One (^ at light, April 26th, 1894, nearly three 

 weeks earlier than my next earliest record for the species. The specimen is 

 almost unicolorous rusty-red, with no gray shades or powdering at all, 



(To be continued.) 



