148 AKCTIAD^. 



terminal series of spots, the former with the spots above veins 4 and 3 

 smaller and displaced outwards ; a terminal series of points. Hind 

 wing white, with some ochreous and brown spots on terminal two- 

 thirds of costal area on underside. 



2 . Abdomen brown and white ; fore wing with hardly any 

 ochreous irroration. 



Eah. CoLOMBTA, 1 J , 1 2 , type t in Coll. Schaus. Exp., S 46, 

 2 52 millim. 



1476. Halisidota argentata. 



Halisidota argentata. Pack. Proc. Ent. Soc. Philad. iii. p. 129 (1864) ;. 

 Stretch, Zjg. & Bomb. N. Am. p. 135. pi. 6. f. 12; Kirbv, Cat. Het. 

 p. 208. 



Head and thorax yellowish white, palpi brown except at tips ; 

 antennae reddish brown, tegulae with brown spots ; patagia edged 

 mth brown, mesothorax with brown spots ; legs banded with 



Fig. %.— Halisidota argentata, S • t- 



brown ; abdomen yellowish white, more orange on dorsum, some 

 sublateral and ventral brown marks. Fore wing dark red-brown, 

 slightly irrorated with white ; some obliquely placed white points at 

 base and a short fascia on inner margin ; five yellowish spots on 

 costa : two antemedial white spots in submedian interspace, with 

 a point beyond them in cell and a medial spot below the cell; a 

 triangular spot in end of cell, and small spots above and below base 

 of vein 2 and slight marks on discocellulars ; oblique postmedial and 

 subterminal series of spots, the former having the spots above veins 

 4, 3, and inner margin smaller ; a terminal series of small triangular 

 yellowish-white spots. Hind wing yellowish white, with small 

 brown discoidal spot and a spot often bifid at apex ; the underside 

 with medial and postmedial spots on costa ; vein 8 represented by 

 two spurs not reaching costa. 



Hub. Beitish Columbia : U.S.A., Mountains of California, 1 6 , 

 Urote Coll. Exp., J 38, 2 60 millim. 



Subsp. 1. subal2nna, French, Can. Ent. xxii. p. 47(1890); Kirby, Cat. Het, 

 p. 209. 



Thorax marked with redder brown : fore wing very thickly irro- 

 rated with ochreous white, which becomes the predominant colour 

 towards costa and inner margin. 



Hab. U.S.A., Rocky Mts., Colorado. 1 (S . 



