74 [June 



Macroglossa thysbe, Fabr. 



" Athabasca River, July." R. Kenaicott. 



Clisiocampa americana, Harris. 



" Athabasca River, July." R. Kennicott. 



A single 9 specimen varying in coloration from ordinary individuals 

 of the species. 



Lithosia bicolor, Grote. 



The entire insect is dark lead color except a yellow costal stripe, 

 which extends from apex to apex of anterior wings crossing the col- 

 lar, 9 . Exp. f inch. 



"Athabasca River, July." R. Kennicott. 



A single specimen in indifferent 2)reservation. 



Arctia parthenos, Harris. 



Arctia borealis, Moschler. 



Arctia americana, Walker, non Harris. 



•' Great Slave Lake." Mr. Ross. 



Two ( S $ ) specimens, varying in the number and size of the yel- 

 lowish spots on anterior wings. 



It seems probable that while Mr. Walker has described the present 

 species as A. americana., Harris, he has also regarded the latter species 

 as identical with the European A. caja, Linn, from which it is readily 

 distinguished by the white band on the collar, scarlet palpal fringe, etc. 

 Mr. Moschler's Arctia borealis is evidently a synonym of this species. 

 while his Arctia caja, W. E. M. 4, p. 360, is doubtless = ^. ameri- 

 cana, Harris. 

 Pygaera inclusa, Hubner. 



" Mackenzie River to Lake Athabasca." R. Kennicott. 



Noctua augur, Fab. 



•'Athabasca River, July." R. Kennicott. 



Four S specimens. 

 Scoliopteryx libatrix, Linn. 



■ Youkon River, mouth of Porcupine River." R. Kennicott. 



Anarta brephoides. Walker. 



'' Youkon River, mouth of Porcupine River." R. Kennicott. 



A single S individual, wanting antennae. A very interesting spe- 

 cies, differing greatly from its congeners and having much the appear- 

 ance of an aberrant Brephide. The head and prothorax are thickly 



