PLAGIOHIMICPS. XOCLOA. 253 



medial line and some whitish beyond the postmedial line from 

 vein '3 to inner margin ; antemedial line very indistinct, donble, 

 slightly excurved from costa to median nervure, then oblique ; 

 a blackish point in middle of cell and soino blackish scales on dis- 

 coeellulars ; a diffused olivc-brown medial shade ; postmedial line 

 indistinct, brownish, oblique from costa to vein 7, excurved to 

 vein 4, then oblique, a dark shade beyond it on costal area ; sub- 

 terminal line faint, whitish slightly defined by brown on inner 

 side, excurved at middle ; a fine brown terminal line ; cilia brown 

 mixed with ochreous white and with ochreous line at base. Hind 

 Aving white, the terminal area tinged with ochreous brown; a faint 

 brown terminal line from apex to vein 2 • the underside with the 

 costal and terminal areas slightly irrorated with brown. 



Hah. U.S.A., Montana, Colorado, Duj-ango (Oslnr), 3 J , 1 ^ , 

 Denver (Oslar), 2 d , 3 2 , Platte Caiion. £'.(y. 26-34 millim. 



Genus NOCLOA. 



Type. 



Kocha, Smith, J. N.Y. Ent. Soc. xiv. p. 13 (190C>) ^j/rt^/wfe. 



Proboscis aborted, siuall ; palpi upturned, very short and slight, tlie 2nd 

 joint moderately fringed witii scales, the ^rd skurt; frous with large round 

 corneous prouiiuence with raised edges and truncate process in niiddle ; eyes 

 large, round ; antennae of male almost simple ; thorax clothed chiefly with 

 scales, the prothorax without crest, the metathoi-ax with spreading crest, the 

 patagia sligiitly curled upwards at extremities; tibite moderately fringed with 

 hair, the fore tarsi very short and the ungues very large ; abdomen with dorsal 

 crest at base only. Jb'ore wing with the apex rounded, the terinen evenly 

 curved and slightly crenulate, tiie tornus with slight scale-tooth ; veins 3 and 

 5 from near angle of cell ; G from upper angle ; 9 from 10 anastomosing with 

 8 to form the areole ; 11 from cell. Hind wing with veins 3, 4 from angle of 

 cell; 5 obsolescent from below middle of discocellulars ; (i, 7 shortly stalked ; 

 8 anastomosing with the cell near base oidy. 



A. Fore wing bright yellow. 



a. Fore wing with small orange spots in cell before middle and 



at upper exi remity aliaga. 



h. Fore wing without orange spots in cell. 



a}. Fore wing with the orbicular and reniform defined by 

 rufous. 

 or. Fore wing with the postmedial line bent outwards below 



c;)sta to near subterminal line alcandra. 



b-. Fore wing with the postmedial line excurved from below 



costa to vein 4 cordova. 



6h Fore wing with the orbicular and reniform only defined 



by an irregular grey-brown patch before and below them, nanata. 



B. Fore wing rufous with blickish patches on inner margin before 



middle and on costa before apex plagiata. 



C. Fore wing dull ochreous with olive markings riuulosa. 



D. Fore wing whitish. 



a. Fore wing with olive medial band, the orbicular and reniform 



absent > nacea. 



h. Fore wing wit.h the outer half of medial area suffused with 

 red -brown, the small orbicidar and renilbrtn placed on it 

 deliued by black and close together arivaca. 



