CHALCOPASTA. CENTROGONE. 223 



area. Underside of fore wing suffused with brown except the 

 costa ; hind wing pure white. 



Hah. U.S.A., Kansas. Argus Mts. {Riley), in U.S. Nat. Mus., 

 California. Exp. 32 millim. 



Genus CENTROGONE, nov. 



Type, C. chlorochrysa. 



Proboscis aborted, small ; palpi obliquely porrect, extending to just beyond 

 frons, the 2nd joint moderately scaled, the 3rd short; frons with corneous 

 prominence with raised edges and central process, a large corneous plate below 

 frons ; eyes large, round ; antenna; of male bipectinate with moderate branches 

 ro apex; thorax clothed almost entirely with scales, the pro- and metathorax 

 with small spreading crests ; fore tibia; short with curved claw on inner side at 

 extremity, the mid and hind tibia; smoothly scaled ; abdomen without crests. 

 Fore wing with the apex rounded, the termen evenly curved and hardly 

 crenulate ; veins 3 and 5 from near angle of cell ; 6 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 disco- 

 cellulars ; 6, 7 shortly stalked ; 8 anastomosing with the cell to near middle. 



4596. Centrogone chlorochrysa, n. sp. 



S . Head, tegulae, and legs ochreous white mixed with rufous ; 

 thorax ochreous white ; abdomen ochreous white slightly tinged with 

 rufous at middle of dorsum and on ventral surface. Fore wing- 

 pale golden green, the extreme base and costal edges ochreous 

 white thickly irrorated with rufous ; antemedial line represented 

 by slight dark points on the veins ; orbicular very small, round, 

 with ochreous white centre defined by fuscous ; reniforni with 



Fig. 85. — Cent ray one chlorochrysa, <$ . 



rufous centre surrounded by small rufous fuscous-edged spots ; 

 postmedial line represented by an oblique series of dark points on 

 the veins from vein 7 to inner margin, the subterminal line by 

 points on veins 7, 6, 4 ; a fine waved brown terminal line with 

 black points in the interspaces ; cilia red-brown at base, chequered 

 red-brown and white at tips and with fine dark line through them. 

 Hind wing pure white, the cilia brownish from apex to vein 2 ; the 

 underside with the costal area irrorated with rufous. 



Hah. Transvaal, Johannesburg (Cholmley), 1 J type, Gemsbok- 

 fontein (Janse), 4 d ; Orange River Colony, Bloemfontein {Eckers- 

 ley), 1 o. Exp. 34 inillim. 



