152 THE CANADIAN ENTOMOLOGIST. 



from other tubercles mostly black, with a few pale yellowish-red ones 

 intermingled. Thoracic feet jet-black, shiny ; prolegs exteriorly, upper 

 two-thirds black, shiny, lower third reddish. Later in the Stage the skin 

 loses its black intensity, and becomes more of a dark reddish-brown, 

 blotched with gray and black, and the orange-red dashes on sides become 

 more conspicuous. 



Stage F/.— Length i8 mm. Head 1.9 mm. wide, black, shiny, 

 epistoma sordid white. Body almost wholly black, no dorsal stripe now. 

 The skin immediately between tubercles iii. and iv., iv. and v. and v. and 

 vi. is now only faintly reddish. Tubercles black, shiny, ii. with a broad 

 polished base. All the bristles from the tubercles are black, with the 

 exception of a few pale reddish ones from tubercles vi., vii. and viii. 

 Spiracles black, touching anterior edge of tubercle iv. Thoracic feet 

 black ; prolegs reddish. 



Stage VII. — Length 25 mm. Head 2.6 mm. wide, subquadrate, 

 very slightly bilobed, black, shiny; posterior median space of cheek 

 brownish ; epistoma whitish ; mouth-parts reddish ; hairs on face black. 

 Skin of body wholly velvety black. Tubercles black, shiny, large and 

 conspicuous, i. nearly one-quarter the size of ii., ii, with a broad polished 

 base, iii. smaller than ii. Each tubercle above the spiracles has a bunch 

 of black, finely-barbed bristles, of varying lengths. The only rusty 

 bristles are from tubercles v., vi , vii. and viii., and these are a dark 

 rust-red. The dorsal tubercles on segments 12 and 13 bear a few extra 

 long bristles. Spiracles wholly black, touching on abdominal segments 

 the anterior edge of tubercle iv. No markings of any kind on the body. 

 Thoracic feet black, shiny, reddish at tips ; prolegs reddish. 



When the larva stopped feeding, eight days after the sixth moult, it 

 measured 30 mm. long, and 6 mm. wide at segment 8. 



Distribution — Banff, Alta., June 16 (N. B. Sanson); Aweme, Man. 

 (Griddle); London, Ont., June 30, bred (Saunders); Toronto (Bethune, 

 Croft); Meech Lake, Que., May 26 (Young); Montreal, Que., June 20 

 (P. M. Dawson); Cowansville, Que. (Fyles). 



17. F"iGURATA. — This form has been referred to as a variety of 

 p/iyliira, but Dr. Dyar in his recent catalogue gives it specific rank. The 

 species (if such it is) is rare in Canada. Full notes on the earlier stages 

 would be very welcome. Mr. E. L. Graef briefly describes the mature 

 larva as "jet-black, hairs very stiff." In the Proc. U. S. Nat. Museum, 



