370 KOCTUID^. 



brown and white. Hind wing white tinged with pale brown, the 

 veins browner ; an indistinct subterminal brown shade excurved 

 below costa and ending at tornus ; a fine brown tenninal line ; cilia 

 chequered brown and white ; the underside whiter, a brown dis- 

 coidal spot, indistinct oblique ante- and postmedial brown lines, the 

 subterminal shade more distinct. 



Hah. U.S.A., Texas, Colorado {Bruce), 1 $ . Exp. 50 millim. 



8185. Diphthera virginaria. (Plate CCXXXIV. fig. 10.) 



Biston virginaria, Grote, Can. Ent. xii. p. 220 (1880); Dyar, Cat. Lep. 

 N. Am. p. 328. 



5 . Head and thorax white mixed with dark brown ; abdomen 

 red-brown irrorated with white, the ventral surface dark brown 

 mixed with white. Fore wing white thickly irrorated with dark 

 brown, the veins streaked with dark brown ; subbasal line dark 

 brown, from costa to submedian fold ; antemedial line dark brown, 

 excurved to submedian fold, then incurved ; medial line dark brown, 

 nearly straight to submedian fold, then excurved ; a slight dark 

 discoidal lunule ; postmedial line dark brown, excurved and slightly 

 waved at middle, incurved at discal fold and below vein 3 and 

 excTirved at vein 1 ; subterminal line dark brown defined on outer 

 side by whitish marks, angled outwards below vein 7 and inwards 

 at vein 5, excurved at middle, then incurved ; a fine dark terminal 

 line ; cilia chequered brown and white. Hind wing white tinged 

 with brown, the veins browner ; a brown subterminal shade ending 

 at tornus and almost interrupted between veins 3 and 2 ; a fine 

 dark terminal line ; cilia chequered brown and white ; the under- 

 side white in-orated with brown, a brown discoidal spot, oblique 

 brownish ante- and postmedial lines, the subterminal shade obso- 

 lescent. 



Hah. U.S.A., California, Shasta Soda Spring, 1 $ tj^pe. Exp. 

 56 millim. 



8186. Diphthera palata. (Plate CCXXXIV. fig. 11.) 



Charadra palata, Grote, Can. Ent. xii. p. 258 (1880); Smith, Cat. Noct. 

 N. Am. p. 31. 



^ . Head and thorax white mixed with dark brown ; patagia 

 with black bands at and near tips ; abdomen dark brown with 

 narrow whitish bands, the ventral surface whitish. Fore wing 

 white thickly irrorated Avith dark brown ; subbasal line black, 

 oblique, from below costa to submedian fold ; antemedial line 

 black, slightly bent inwards to costa, oblique below submedian fold 

 and forking above inner margin, a black streak in submedian fold 

 from it to the postmedial line ; orbicular and reniform defined by 

 black and with some dark suffusion between them, the former 

 round, the latter somewhat qviadrangular ; an oblique sinuous 



