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Show 40 ME. E. Y. WATSON ON THE HEBPEE1ID,E. [Jan. 17, 45. Genus PHANUS. (Plate I. fig. 7.) Phanus, Hiibner, Verz. p. 114 (1816). Type, vilreus, Cramer. Antennse : club very gradually curved into a crescent, short, rather flattened, considerably thicker than shaft, tapering to a fine point. Palpi: second joint upturned, densely scaled ; third joint naked, rather conspicuous. Fore wing: inner and outer margins subequal; male with a costal fold ; cell more than two-thirds the length of costa; vein 12 reaching costa before end of cell; upper discocellular short but distinct, outwardly oblique ; middle and lower discocellulars almost erect, the middle the longer ; vein 3 rather more than twice as far from base of wing as from end of cell ; vein 2 rather more than twice as far from end of cell as from base of wing. Hind wing prominently lobed at vein 1 b; vein 7 rather more than twice as far from 8 as from 6 ; discocellulars very faint, erect; vein 5 wanting; vein 3 from end of cell ; vein 2 more than twice as far from base of wing as from end of cell. Hind tibise fringed and with two pairs of spurs. f vitreus, Cram 1. X momus, Fabr. marshalli, Kirby 2. And one unidentified species. Confined to tropical America. 46. Genus HYALOTHYRUS. Hyalothyrus, Mabille, Ann. Ent. Belg. vol. xxi. p. 23 (1878). Type, nitocris, Cramer. Antennse rather long ; club very slender, hardly thicker than shaft, bent into a slight curve. Palpi porrect, divergent ; third joint long, slender, and naked. Fore wing : inner and outer margins sub-equal ; male with a costal fold ; cell more than two-thirds the length of costa; vein 12 reaching costa before the end of the cell; discocellulars inwardly oblique, subequal; vein 3 shortly before the end of cell, about three times as far from 2 as from 4 ; vein 2 three times as far from end of cell as from base of wing. Hind wing well before the end of cell ; discocellulars and vein 5 barely traceable • vein 3 immediately before end of cell; vein 2 considerably nearer to end of cell than to base of wing. Hind tibise with only a terminal pair of spurs and without a brush. Closely allied to Entheus. infernalis, Mosch 1. j neleus, Linn 2. \prisons, Feld. Confined to South America. 47. Genus ENTHEUS. (Plate III. fig. 9.) Entheus, Hiibn. Verz. ^ 114 (1816). Type,'^^, Linn. Phareas, Westw. Gen. D. L. p. 515 (1852). Types, gentius, Cr., and peleus, Linn Antennas: club slender, evenly curved into a crescent. Palpi |