THE CANADIAN ENTOMOLOGIST. 251 



surface is decidedly light. The hairs, which later became foxy-red, are then 

 light-coloured. 



This species was described as Nemeophila Selwynii, by the late Henry 

 Edwards, in Can. Ent., XVII., 65, but there can, I think, be no doubt 

 that it is identical with that described in Proc. Ent. Soc, Phil., III., 113, 

 by Dr. A. S. Packard, under the name of Plactarctia Scudderi, as 

 follows : — 



" £ . — Brownish-black. Sides of the prothorax, orange. Two whitish 

 bands on the forewing ; one lying just under the base of the median ner- 

 vure, as long as the thorax ; the other transverse running from just above 

 the internal angle to the outer third of the costa. The middle of the 

 patagia is whitish, and there are two curved narrow lines on each side of 

 the meso-scutum. The tips of the palpi, and the ends of the femora above, 

 and the tibiae and tarsi are very pale yellowish-white, concolorous, with 

 the bands on the thorax and primaries. 



Secondaries entirely brownish-black, and concolorous with the fore- 

 wings. 



Length of body, .45 ; length of primaries, .65 inch." 



Mr. Scudder's specimens were collected on the Saskatchewan River, 

 but the best known locality is Nepigon, on the north shore of Lake 

 Superior. 



When I visited that place in 1890, July 9-1 1, in company with Mr, 

 Fletcher, this species was just in season and fairly abundant, and I ob- 

 tained over a dozen specimens in fine condition. 



It is, however, a most difficult species to collect in good order, as the 

 scales come off so easily that if two are in the cyanide bottle together, 

 they damage each other immediately. 



I do not think that the fact of so many of these larvae passing through 

 all their stages during the one season at all indicates a second brood under 

 natural conditions, as their transformations were doubtless accelerated by 

 being brought to a milder climate and kept in the house. 



Last year Mr. Fletcher again visited Nepigon and secured eggs of this 

 species and bred it to imago, and has informed me that while one speci- 

 men completed its transformations that season and gave the moth in the 

 autumn, the rest of them hibernated when two-thirds grown on the surface 

 of sod merely hidden beneath the leaves, close to the ground, but without 

 any silken tent or cocoon. After awakening in the spring and before 

 eating they measured exactly Y% of an inch (average). 



Mr. Samuel Henshaw kindly compared for me a specimen from Nepi- 

 gon with the specimens in the Cambridge Museum, and found thai while 



