72 THE CANADIAN ENTOMOLOGIST. 



Hypetia evanidalis. August 13th ; rare at sugar. 



Platyliypena scabra. Common at sugar. 



Bruphos infans. At birch trees in May (Mr. Grant). 



NOTES ON CATOCALAS. 



BY THE EDITOR. 



For several years past we have had in our possession bred specimens 

 of a small species of Catocala near polygama, which we have been unable 

 to refer with certainty to that species, and yet in the imago state the 

 differences between the two are so inconspicuous that we have felt a 

 hesitancy in describing the one as distinct from the other. There is, 

 however, what appears to us to be a strongly marked difference between 

 the larvae of the two species, and chiefly on this ground we have been 

 induced to describe them as distinct. The larvae of both species feed 

 on thorn. 



Catocala cratcegi, n. s. Larva. Specimens taken by bush beating 

 about the middle of June. Length about one and a half inches, onisci- 

 form. Head flat, medium sized, slightly hairy, grayish, with a few 

 blackish streaks and dots ; bilobed, each lobe tipped with reddish, mixed 

 with white ; these colors margined before and behind with blackish 

 brown, in which are dots of a paler hue ; sides of head pale greenish 

 white, with a faint network of brownish lines. 



Body above greenish ash color, with many minute dots of brownish 

 black, some of them forming indistinct and imperfect lateral streaks ; 

 dorsal line very slightly paler than general color. Second and terminal 

 segments with a number of small whitish dots, each emitting a single 

 hair. On each side of the dorsal line is a row of small tubercles, those 

 on third segment whitisb tipped with black, on fourth reddish tipped with 

 dull white ; on the remaining segments they are a little larger and decid- 

 edly red tipped with whitish. Between each of these, and running in the 

 same direction, is a small whitish dot or minute tubercle ; each and all 

 of these tubercles emit a single brownish hair. The upper portion of the 

 ninth segment is raised, and on its centre there arises a thick, fleshy horn 



