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Show 666 SIR G. F. HAMPSON ON THE [June 1 Fig. 34. Derbeta nigrifimbria, 3. \. Type. I D E R B E T A NIGRIFIMBRIA, Wlk. xxxiv. 1148. Brazil. Genus PYRAUSTODES. Pyraustodes, Eag. Ann. Soc. Ent. Fr. 1890, p. 484. Palpi upturned, slender, very short and hardly reaching halfway to vertex of head; frons rounded ; antennae almost simple; mid and hind tibiae slightly fringed with hair. Fore wing of male with a large flap of scales in the cell; the basal half of costal arched; the apex slightly produced; the outer margin obliquely rounded; veins 3, 4, 5 from angle of cell; 6 from below upper angle; 7 absent; 8,9 stalked; 10 free; 11 curved. Hind wing with the discocellulars very highly angled ; the lower angle of cell greatly produced; veins 3, 4, 5 from angle; 6, 7 shortly stalked, 7 anastomosing slightly with 8. Fig. 35. Pyraustodes flavicostalis, $. \. Type. * P Y R A U S T O D E S FLAVICOSTALIS, Eag. Ann. Soc. Ent. Fr. 1890, p. 485. Brazil. Genus ARICA. Arica, Wlk. xxviii. 439 (1863). Palpi with the 2nd joint upturned and reaching vertex of bead, the 3rd porrect and thickly scaled ; frons with a sharp tuft; antennae of male nearly simple; mid tibiae somewhat thickly clothed with hair ; hind tibiae long. Fore wing very broad; male with tympanic vesicle at base of costa, which is very highly arched, the outer half somewhat excised ; the apex rectangular ; the outer and inner margins forming an almost continuous curve; the retinaculum annulate ; the frenulum thickened and flattened, with a short lower fork; vein 3 from near angle of cell; 4, 5 from |