212 NOCTflD^. 



Antcnnse of male with the branches rather loiio;. 

 hub. Canada, Alberta, Calgary ( Wolly-Dod), 1 cT , Br. Columbia, 

 Praser R. (St. John), 1 $ . Exp. 42-46 millim. 



3824. LithomcBa indistincta. (Plate CXXVIII. fig. 30.) 



Hyppa indistincta, Smith, Tnms. Am. Ent. Soc. xxi. p. 63, pi. iv. f. 4 

 (1894); Dyar, Oat. Lep. N. Am. p. 121. 



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

 palpi with black patches at sides of 2nd joint; frons with black 

 bar; tegulse with strong black medial line; ])atagia with the outer 

 half black-brown, the upper half white mixed with brown ; tarsi 

 blackish ringed with white; abdomen grey suffused with brown, 

 the dorsal crests blackish. Fore wing bluish white with slight 

 dark irroration, the veins with slight dark streaks, the inner area 

 suffused with brown and blackish to the postmedial line ; subbasal 

 line represented by slight dark strise from costa and cell ; a strong 

 diffused black streak just below submedian fold from base to the 

 postmedial line, with some bluish white irroration below its 

 extremity; a black streak with slight white streak below it above 

 inner margin before the antemedial line, which is represented by a 

 slight dark striga from costa, then obsolete to submedian fold, 

 where it is very strongly angled outwards, then very strongly 

 angled inwards on vein 1 and outwards above inner margin to the 

 postmedial line; orbicular and reniform faintly defined by fuscous, 

 the former elongate elliptical, the latter with slight dark centre ; 

 a slight dark medial shade from costa ; postmedial line indistinct 

 from costa to vein 5, then black defined by white on outer side, 

 slightly bent outwards below costa, excurved to vein 4, then oblique 

 and slightly sinuous, some white points beyond it on costa; the 

 terminal area with black streaks in the interspaces above veins 4, 3, 

 the lower streak extending to the postmedial line, the upper to just 

 before it ; a triangular dark shade from termen below apex; sub- 

 terminal line obsolete except from below vein 3 to tornus where it 

 is white, incurved and with a dark shade beyond it ; a terminal 

 series of small black lunules; cilia whitish and fuscous with a dark 

 line through them. Hind wing greyish suffused with fuscous brown, 

 the terminal area rather darker ; cilia grey- white with a fuscous 

 line through them ; the underside greyish suffused with brown and 

 the costal area with bluish white, the terminal area lather darker, 

 a dark discoidal spot and diffused curved postmedial line. 



Hah. Canada, Br. Columbia, Upper Ashnold {Mrs. Niclioll), 1 5 ; 

 U.S.A., Oregon, Mt. Hood. Exp. 42 millim. 



Lm^va. Head shining brown. Body dark brown, cross-barred in 

 darker brown, cutting obliquely a faint subdorsal line ; substigmatal 

 baud broad, pale, edged with brown, with a white line on joints 

 2-^3 and on foot of 13 ; feet brown. Food-plants : Various. — H. G. D. 



