102 



NOCTDJDJ5, 



joint of palpi with black band; shoulders with black stripes ; vertex 

 of thorax with yellowish stripe ; mid and hind tibiae streaked with 

 black ; abdomen Avhite dorsally irrorated with fuscous. Fore wing 

 white irrorated with fuscous and black, the veins white with slight 

 black streaks between them near origin from cell ; subbasal and 

 antemedial lines absent ; a black streak in basal half of submedian 

 fold, diffused below and defined by a fine white streak above, ex- 

 tending to medial line ; orbicular white defined by black except 

 above, oblique, acute at lower extremity and with oblique black 

 streak from it to lower extremity of reniform, which is whitish 

 slightly defined by black on inner side, undefined on outer ; a 

 diffused oblique dark bar from middle of costa to reniform and 

 traces of an oblique sinuous line from lower angle of cell to inner 

 margin ; postmedial line black slightly defined by white on inner 

 side, strongly bent outwards below costa, then dentate, excurved 

 to vein 4, then very oblique and angled outwards on vein 1, rather 

 diffused black streaks from well before it to termen in discal and 

 submedian folds ; a series of small wedge-shaped black marks on 

 termen and cilia, the mark above vein 2 longer. Hind wing pure 

 white; the underside with the costal area irrorated with a few 

 black scales, a black discoidal spot and some points on termen. 



$. Hind wing with the terminal area slightly irrorated with 

 brown. 



Bab. U.S.A., Colorado (Bruce), 1 J, 1 $, Glenwocd Springs, 

 1 <S , 1 5 . Exp. 44 millim. 



3681. Acronycta thoracica. (Plate CXXV. fig. 16.) 



Apatefa thoracica, Grote, N. Am. Ent. i. p. 94 (1879) ; Smith & Dyar, Pr. 

 U.S. Nat. Mus. xxi. p. 91, pi. iii. t'. 8 ; Smith, Cat. Noct. N. Am', p. 37. 



2 . Head and thorax white mixed with brown and black ; 2nd 

 joint of palpi with black band, frons black at. sides and with slight 

 black bar above ; antennae with the basal joint white in front ; 

 shoulders and outer edges of patagia with black streaks ; prothorax 

 dorsally tinged with reddish ochreous, the metathorax with slight 

 paired black marks ; tibiae streaked with black, the tarsi banded 

 with black ; abdomen white irrorated with fuscous and dorsally 

 tinged with brown. Fore wing white suffused with grey and 

 irrorated with black ; subbasal line represented by double black 

 striae from costa and single striga from cell ; a strong black streak 

 in submedian fold from base to well beyond antemedial line with a 

 white streak above it extending to medial line : the antemedial 

 line represented by a black striga from costa, interrupted to median 

 nervure. then angled inwards in submedian fold and strongly out- 

 wards above inner margin ; orbicular white defined by black, small, 

 oblique, triangular, with oblique black streak from its extremity 

 to lower extremity of reniform, which is defined by black on inner 

 side, undefined on 'inter and with its centre tinged with rufous, an 

 oblique black bar above it from costa, and an indistinct sinuous 

 line from lower angle of cell to inner margin at vein 1 ; postmedial 



