in the Basin of the Amazons. 291 



111. Sozoa obscura, n. s. 

 Fore wing rather shining, dingy grey, without any markings, 

 except an obscure dark spot at the end of the cell ; hind wing a little 

 darker ; fringes concolorous ; head, thorax, and abdomen grey ; 

 legs paler ; under side of abdomen paler ; pectus silvery white ; 

 under side of wings shining grey, with an indistinct dark central 

 spot on each, and a curved exterior line. Expanse of wings, 

 20 mm. 



One ^ . Pupunha, E. Jurua, Nov. 6th, 1874. 



The only other species at present named is Walker's 

 original type, Sozoa costalis, from Bogota and Venezuela, 

 which in appearance mimics a Margaronia ; there is a 

 third species in the British Museum Collection unnamed 

 from Espiritu Santo, which superficially very much 

 resembles Lederer's Bradina selectalis, from Amboina. 

 So, too, the present species must be very much like 

 Hymenoptychis sordida, Z., from Caffraria ; but the 

 structure of the antennae and the neuration are quite 

 different. 



112. Blepharomastyx coluhralis. 



Stenia coluhralis, Gn., Delt. & Pyr., 242, 216. 



S. coluhralis, Wlk., Cat. Lep. Het. B. M., xvii., p. 418. 



Botys electralis, Wlk., ib., xviii., p. 601. 



One (? from Pupunha, R. Jurua, Nov. 5th, 1874 ; one 

 ^ from Lake Arapecu, R. Trombetas, March 2nd, 1874. 

 Guenee's types of S. coluhralis were from Cayenne, 

 Walker's, of B. electralis, from Ega. 



Leptosteges, n. g. 



Fore wing nearly three times as long as broad ; costa slightly 

 convex throughout ; hind margin oblique ; anal angle rounded off ; 

 hind wing also narrow, with both angles rounded off. Scaling of 

 wings thick and coarse, not glossy; markings alike on both. Eyes 

 large ; antennae of the <? smooth above and pale, beneath with 

 each joint angularly produced, and finely but densely ciliated 

 throughout with brownish hairs. Palpi porrected, slightly ascending, 

 clothed with diffuse rough hairs, which entirely conceal the joints, 

 as in Cledeobia. Maxillary palpi slight, feathery ; tongue feeble ; 

 legs long ; first joint of the tarsi of the fore legs thickly clothed 

 with dark hairs. Insects of small and delicate build. Neuration : 

 Fore wing with the interno-median fold strongly expressed 



