304 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 50. 



MICRAMMA CROCEICOSTA, new species. 



Ildle. — Palpi brown fringed above with buff. Head, collar, and 

 thorax dark brown; yellowish lines from vertex across coUar and 

 shoulders. Abdomen fuscous with paler segmental shades terminally. 

 Fore wings brown, the lines darker brown; costal margin yellowish; 

 a few black scales antemedially on costal edge; the lines from sub- 

 costal; the antemodial vertical, lunular; the medial across end of 

 ceU, followed by a fine greyish line on discoccUular ; the postmedial 

 lunular, slightly inbent; the subtermmal lunular, partly shaded out- 

 wardly with greyish white scales; a fine lunular terminal line; cilia 

 yellowish spotted with brown. Hind wings dull brown; traces of a 

 subterminal grey line; a darker terminal line. Hind wings below 

 grey thickly irrorated with brown, a fuscous brown spot in cell, and 

 one on discocellular; a fme Imiular postmedial Ime. 



Expanse. — 26 mm. 



Habitat. — St. Jean, Maroni Kiver, French Guiana. 



T^/pe.— Cat. No. 19747, U.S.N.M. 



Genus BUCINNA Walker. 



Bucinna Walker, Cat. Brit. Mua., vol. 35, 1866, p. 1983; new name for Betousa 

 Walker, Cat. Brit. Mus., vol,. 34, 1865, p. 1208, preoccupied. 



Palpi porrect, third joint down bent, one-third as long as second. 

 Antennae pubescent. Forewings acute; veins 3, 4, 5 close together 

 from lower angle; 6 close to upper angle; 7, 8, 9, 10 stalked from 

 upper angle; 11 free. Hind wings: Veins 3 and 4 and 6 and 7 shortly 

 stalked; 5 above angle. 



Tyi^e of genus. — Betousa divisalis Walker. 



The following species may be referred also to this genus: 



Bucinna'^. ohagitalis {Ilypena) Walker, Cat. Brit. Mus., vol. 16, 

 1858, p. 50. 



Genus PTEROPRISTA Warren. 



Ptcroprista Warren, Trans. Ent. Soc. Lond., 1889, p. 256. 



ikfaZe.— Palpi upcurved to collar, smooth; third joint with long 

 hairs on inner side. Antennae pubescent. Fore legs with short and 

 narrow process. Fore wings narrow; costa straight; apex acute; 

 outer margin angled below vein 5, then oblique with cleft below 

 vein 4 ; vein 3 before lower angle ; 4 and 5 from lower angle, approxi- 

 mated; 6 from upper angle; 7, 8, 9, 10 stalked; 11 free. Hmd wings: 

 Vems 3 and 4 and 6 and 7 shortly stallved ; 5 near lower angle. 



Type of genus. — Ptcroprista metallica Warren. 



