PKEPIBLLA. CHIOIS'OSIA. 359 



756. Prepiella sesapina. (Plate XXVII I. fig. 7.) 



Mcepha sesapina. Bull. Trans. Ent. Soc. 1877, p. 320; Kirby, Cat. Ilet. 

 p. 291. 



(^ . Head and thorax yellow ; antennae except at tips, and a 

 slight streak on vertex of head fuscous ; tibite banded with fuscous ; 

 abdomen pale crimson. Pore wing ochreous yellow ; a black spot 

 at base of costa ; the basal a.rea with black streaks on vein 12, 

 subcostal and median nervures, a line arising from the basal end of 

 last strongly dentate outwards on vein 1, curved round above inner 

 margin and becoming the antemedial line, which is strongly curved, 

 slightly dentate inwards in cell and strongly below the cell ; the 

 postmedial line running out to a long tooth beyond the cell, then 

 oblique and ending at tornus ; a series of short streaks on the veins 

 of terminal area ; a fine terminal black line ; the cilia black towards 

 tornus. Hind Aving crimson, with small apical brown patch ; the 

 cilia brown to vein 2, then orange. 



Ab. 1. Fore wing with crimson discoidal spot and streaks on 

 veins 1 and 2 before the postmedial line. — Bolivia, 



Fore wing with vein 11 curved and approximated to 12 ; hind 

 wing with veins 3, 4 strongly stalked. 



Hah. Brazil, Espiritu iSanto, 1 (S type; Bolivia, Chaco {Gar- 

 lepp), 1 S - Exp. 16 miUim. 



Genus CHIONOSIA, nov. 



Type, C. apicalis. 



Proboscis fully developed ; palpi upturned, slender, not reaching vertex of 

 head ; antennae of male ciliated ; tibia; witli the spurs moderate. Fore wing 

 rather narrow, the costa truncately oblique towaids apex; vein 2 from middle 

 of cell ; 3 from long before angle ; 4, 5 from angle, or 5 from above angle ; 

 6, 7, 8 stalked; 9 absent; 10, 11 free. Hind wmg with vein 2 from well 

 beyond middle of cell ; 3, 4 coincident ; 5 absent ; 6, 7 stalked ; 8 from middle 

 of cell. 



A. Fore wing without fuscous medial band apicalis. 



B. Fore wing with fuscous medial band sonata. 



757. Chionosia apicalis. 



Calligenia a2ncalis, Zell. Verb, zool.-bot. Ges. Wien, xxiv. p. 424, pi. 12. f. 1 

 (1874) ; Kirby, Cat. Ilet. p. 360. 



$ . White, slightly tinged with olive-yellow. Fore wing more 

 distinctly tinged with olive-yellow ; indistinct curved eubbasal, 



oblique antemedial and medial 

 bands of a rather darker olive- 

 yellow than the ground-colour; 

 a black discoidal point ; the 

 postmedial band strongly bent 

 outwards round the discoidal 

 point and with a few dark 



¥ig. 21^.— Chionosia upicali>i, S ■ I- scales on its excurved part ; 



a subtcrminal band ; an 

 obli(]ue brownish streak from apex and a mark on termen below 



