TAIiACHIDIA. 691 



tinned with brown on dorsum. Fore wing ochreous yellow ; the 

 orbicular a black point, the reniform a minute blackish annulus ; 

 postmedial line represented by a few scales beyond the cell and an 

 oblique brown line from lower angle of cell to inner margin, \^'ith 

 triangular patch of brown suffusion beyond it ; a terminal series of 

 slight black poiuts ; cilia brown. Hind wing whitish tinged with 

 reddish brown, the cilia brown at base, white at tips ; the under- 

 side uniform yellowish white. 



Ab. 1. obsoleta. Fore wing with the markings almost obsolete. 



Ab. 2. modesta. Head, thorax, and fore wing grey -brown slightly 

 suffused with yellowish-white scales. 



Ab. 3. deleta. Fore wing dark brown suffused with olive-yellow 

 scales leaving the termen and cilia dark, almost without markings. 



Hub. Canada, Hudson's Bay, Alberta, Calgary ; U.S.A., Illinois, 

 1 (5 type obsoleta, Iowa, Kansas, Texas, 2 c? , Colorado, Boulder 

 (CocherelJ), 2 (^ , Kevada, Virginia City, California Lake Co. (Wals- 

 mgham), 5 c? , 5 § . EicjD. 22-24 millim. 



6042. TaracMdia erastrioides. (Plate CLXIX. fig. 25.) 



Acontia erasirioides, Guen. Noct. ii. p. 218 (1852) ; Smith, Cat. Noct. N. Am. 

 p. 299. 



Head blackish brown, the palpi whitish at base ; thorax white ; 

 fore tibiae and the tarsi brown ringed with white ; abdomen white 

 dorsally slightly tinged with brown, the anal tuft ochreous. Fore 

 wing chalky white; subbasal line pale brown,fromcosta to submediaii 

 fold ; antemedial line pale brown, slightly incurved at submediau 

 fold ; orbicular a black point ; the reniform brown defined by a few 

 black scales, small, elliptical ; a small brown spot on middle of 

 costa and an oblique sinuous line from cell to inner margin ; the 

 outer part of medial area and the postmedial area except towards 

 costa olive-brown shading to purple-grey suffused with blackish ; 

 postmedial line pale brown and oblique from below costa to vein 6, 

 then black, incurved and minutely waved below vein 4 ; subterminal 

 line white defined on inner side by pale brown towards costa and on 

 outer side by pale brown except towards costa, excurved below 

 vein 7 and at middle, bent outwards to tornus ; a terminal series 

 of black points ; cilia white tinged with fuscous at middle and 

 tornus. Hind wing white, the terminal half suffused with brown ; 

 cilia white with a slight brown line near base ; the underside 

 ochreous white. 



Hub. Canaba; U.S.A., south to Virginia and west to the 

 Mississippi, Massachusetts {Packard), 1 c? , 1 $ , New York 

 (Schlegel), 1 c? , 2 5 , Evans Center {Grote), 1 S , Illinois, 1 d", 

 1 $ . Exp. 20-22 millim. 



Larva. Coquillett, Papilio, i. p. 8. 



Deep green ; a white stigmatal stripe ; body with Ifi or 18 wavy 

 black and white lines or 12 white lines ; head green marked with 

 black and white. Food-plant : Ambrosia artemisiepfoJia. -7. 



2 Y 2 



