ACRONi'CTA. 145 



termen in discal and submedian folds ; a series of small blackish, 

 spots just before termen; cilia chequered whitish and black-brown. 

 Hind wing white, the base slightly tinged with yellowish, the 

 apical part of termen slightly irrorated with brown ; the cilia with 

 series of dark points from apex to vein 2 ; the underside with the 

 costal area slightly irrorated with brown, a small blackish discoidal 

 spot. 



Hah. U.S.A., Colorado, Glenwood Springs {Barnes), 2 cS . 

 E.cp. 44 millim. 



3735. Acronycta perdita. (Plate CXXVI. fig. 25.) 



Acronycta perdita, GrotC; Can. Eat. vi. p. 154 (1874); Smith & Dyar, Pr. 

 U.S. JMat. Mus. xsi. p. Itio, pi. iii. f. 6 ; Smith, Oat. Noct. N. Am. p. 42. 



Head and thorax purplish grey mixed with black ; the tegulse 

 and thorax with paired blackish stripes ; tarsi black ringed with 

 white ; abdomen grey thickly irrorated with dark brown, the base 

 suffused with brown. Fore wing purplish grey thickly irrorated 

 with black, the submedian interspace suffused with blackish to 

 medial line ; subbasal line represented by double black stria; from 

 costa ; antemedial line double, strong, very oblique towards costa, 

 then waved ; orbicular and reniform defined by black, the former 

 small, elongate elliptical, the latter filled in with brown and with 

 the black on its outer edge reduced to spots ; medial line oblique 

 and diffused from costa to reniform, indistinct, inAvardly oblique 

 and somewhat dentate from lower angle of cell to inner margin ; 

 po'itmedial line black defined by grey on inner side, strongly bent 

 outwards below costa, then dentate, excurved to vein 4, then 

 incurved and angled outwards on vein 1, some dark suffusion 

 beyond it and a dark patch between veins 6 and 4 and fascia below 

 vein 2 extending to near tertnen ; a series of small black spots just 

 before termen ; cilia chequered grey and black-brown. Hind wing 

 white, the veins and costal area tinged with brown in male, in 

 female suffused with brown, the terminal area darker ; cilia white ; 

 the underside white irrorated with brown, a brownish discoidal 

 spot and traces of curved postmedial line. 



Hab, Canada, Br. Columbia, Peachland ; U.S.A., Washington, 

 Easton, California (Behrens, D'Urban), 1 c? , 3 5 type, Sierra 

 Nevada. Exp. 42-50 millim. 



Larva. Head shining black. Body black, the warts large ; the 

 hairs in dense tufts, spinose, black, intermixed with a few pale 

 ones. Food-plants : Alder, &c, — H. G, D, 



3736. Acronycta extricata. (Plate CXXVI. fig. 26.) 



Mastiphanes extricata, Grote, Bull. U.S. Geol. Geog. Surv. Terr. vi. p. 575 

 (1882); Smith & D^ar, Pr. U.S. Nat. Mus. xxi. p. 165, pi. xiii. f. 9 ; 

 Suiitb, Cat. Noct. N. Am. p. 45. 



Head and thorax bluish white mixed with black-brown ; 2nd 

 joint of palpi with black band j lower part of frons black ; antennae 



VOL. VIII. I. 



