122 N0CTUID.3E. 



]>oints beyond it on costa; traces of a diffused whitish subterrainal 

 line excurved below vein 7 and at middle : a terminal series of 

 small black spots with dark streaks from them intersecting the 

 cilia, which are whitish with a dark line through them. Hind wing 

 pure white, the veins faintly tinged with brown ; the underside 

 with the costal area slightly irrorated with brown, a slight 

 discoidal point and traces of a curved postmedial line from costa to 

 vein 2. 



5 . Hind wing with the terminal area slightly tinged with 

 brown. 



Hob. U.S.A., Washington, Colorado. Glenwood Springs {Barnes), 

 1 J , 2 $ , Salida. Exp. 42-44 millim. 



Larva. Head heavily mottled with black, the vertices of the 

 lohes red. Body green, a purple-brown dorsal stripe, broken in 

 the incisures, widened on joints 2 and 5 and on 7 to 11, the latter 

 containing a green patch ; some brown spots on the sides ; hairs 

 fine, sparse. Food-plants: Birch, &c. — H. G. D. 



3704. Acronycta grisea. (Plate CXXV. fig. 29.) 



Acronycta grisea, Wlk. ix. 56 (1856) ; Smith & Dyar, Pr. U.S. Nat. Mus. 



xxi.'p. 113. pi. iii. P. 4 ; Smith, Cat. Noct. N. Am. p. 37. 

 Acronycta pudoraia, Morr. Ann. Lye. Nat. Hist. N.Y. xi. p. 93 (1876). 



Head and thorax violaceous grey suffused with brown ; palpi 

 white at base and with black band on 2nd joint ; shoulders and 

 outer edges of patagia with black streaks ; abdomen white dorsal! y 

 suffused and irrorated with brown. Fore wing violaceous grey 

 suffused with brown and slightly irrorated with fuscous ; subbasal 

 line represented by double dark striae from costa; a sinuous black 

 streak in subrnedian fold from base to just beyond autemedial line, 

 which is double, indistinct except at costa, and the inner line black 

 from costa to subrnedian fold, oblique, slightly sinuous; orbicular 

 and reniform somewhat pale defined by black, the former round ; 

 traces of a medial line very oblique from costa to reniform and in- 

 curved below the cell ; postmedial line black defined by whitish on 

 inner side, prominently in subrnedian interspace, bent outwards 

 below costa, then dentate, strongly incurved below vein 3 and bent 

 outwards to inner margin, a black streak in subrnedian fold from 

 well before it to termen, some white points beyond it on costa; a 

 faint diffused whitish suhterminal line excurved below vein 7 and 

 at middle ; a terminal series of dark striae ; cilia white with a slight 

 dark line near base and series of points at tips. Hind wing white ; 

 the veins slightly tinged with brown and the terminal area slightly 

 irrorated with brown from apex to vein 3 ; the underside with the 

 costal area slightly irrorated with brown, a small black discoidal 

 spot, traces of a waved postmedial line with brownish spot at costa, 

 excurved to vein 4, then incurved, and terminal series of slight 

 lunules. 



Hub. Canada, Hudson's Bay (Barnston), 1 J, 1 2 type, Ottawa 

 (Fletcher), 1 J, Manitoba, Aweme (Criddte), 1 6 , Cartwright 



