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Show 1896.] BUTTERFLIES OF THE FAMILY HESPERllDJE. 47 known to me, though coming nearer certain species of Osmodes than any others. I ha ye therefore not hesitated to erect a new genus for its reception. HYPOLEUCIS, Mab. 147. H. TRIPUNCTATA, Mab. Hypoleucis tripunctata, Mab. C. R. Soc. Ent. Belg. 1891, p. lxix. Hypoleucis titanota, Karsch, Berl. Ent. Zeit. 1893, p. 254, pi. vi. fig. 5. Hab. West Africa. Common in the valley of the Ogove. I have specimens determined by Mons. Mabille and compared with his type, which show that the form figured by Karsch in his excellent plate is identical. 148. II. OPHIUSA, Hew. Hesperia ophiusa, Hew. Trans. Ent. Soc. Lond. (3) vol. ii. p. 497 (1866); Exot. Lep. vol. v; Hesper. pi. v. figs. 46-48 (1873). Hypoleucis ophiusa, Mab. C. R. Soc. Ent. Belg. vol. xxxv. p. lxix (1S91); Wats. P.Z. S. 1893, p. 82-3; Karsch, Berl. Ent. Zeit. vol. xxxviii. p. 254 (1893). Hab. Tropical Western Africa. 149. H. CRETACEA, Snell. Goniloba cretacea, Snellen, Tijd. voor Entom. 1872, p. 27, pi. ii. figs. 4, 5, & 6. Hesperia camerona, Ploetz, S. E. Z. vol. xl. p. 356 (1879), vol. xliv. p. 48 (1883). Pamphila leucosoma, Mab. Pet. Nouv. Entom. vol. ii. 1877, p. 114. Pamphila camerona, Karsch, Berl. Ent. Zeit. p. 250, pi. vi. fig. 9 (1893). Hab. Tropical West Africa. Common at Gaboon and on Congo ; Togoland (Karsch). The female differs from the male in not having the extremity of the abdomen white and having the wings broader. The figure of G. cretacea given by Snellen exaggerates slightly the pale markings on the underside of the secondaries, while that given by Karsch does not show them as they are commonly found. I have specimens, however, which agree nearly with both representations, and which reveal that there is considerable variation in the distinctness of these markings. My collection contains a series of forty specimens taken at different times and places. 150. H. ? ENANTIA, Karsch. (Plate II. fig. 17.) Hypoleucis enantia, Karsch, Berl. Ent. Zeit. vol. xxxviii. p. 255 (1893). Hab. Togoland (Karsch). • |