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Show 512 LORD WALSINGHAM ON THE [Nov. 17, ACROLOPHUS, Poey. A C R O L O P H U S VITELLUS, Poey. (Plate XLI. fig. 11.) Acrolophus vitellus, Poey, Cent. Lp. Cuba, pi. (xx.) (1833); Wlsm. Tr. Ent. Soc. Lond. 1887, p. 148. West Indies-Cuba (Poey) ; 1 Portorico (Wlsm.). A specimen in Dr. Staudinger's collection from Portorico agrees with Poey's description in the structure of the palpi and antenna as well as in neuration ; the fore wings have the usual indication of a biangulate line along the neighbourhood of the fold, margined with dark shades above and by the pale ground-colour below, this line runs slenderly but distinctly to the base ; two angular dark shades cross the fold, the outer one being connected on the left wing by two lines of darker scales to the middle of the dorsal margin; costal margin distinctly spotted, the spots near the base taking the form of waved striae reaching to the upper edge of the cell. The hind tarsal joints are somewhat strongly clothed with tufts of scales, reminding one of Thysanoscelis, Wlsm. I have not observed this character in any other specimen of the same family from the West Indies. The genital segments of this specimen are given on Plate XLI. fig. 11. The uncus is double. Exp. al. 22 millim. ACROLOPHUS POEYI, sp. n. (Plate XLI. fig. 12.) Antennae, 3 , stout, simple, reaching to about two thirds the length of the wing ; $ somewhat more slender than in the 3 • Palpi, 3, long and recurved, not thickly clothed and not reaching so far as the back of the head ; umber-brown, tinged with whitish ochreous beneath : $ , projecting, conical. Head and thorax umber-brown. Fore icings : 3, umber-brown, with a few paler mottlings and specklings of brownish ochreous along the costal and dorsal margins and towards the apex, and with some small fuscous spots of scales scattered throughout the wing; costal margin narrowly brownish ochreous throughout; no particular pattern is visible on the wing, but there is a tendency in the distribution of the blackish scale-spots to form a sinuous dividing line along the fold, leaving the dorsal portion below it of the paler tint; cilia browuish ochreous, with a dark line running through their middle : °. almost unicolorous pale umber-brown, having a less mottled or speckled appearance than the 3 • Hind wings umber-brown, with cilia of the same colour. Abdomen umber-brown. Genital segments, 3 '• uncus single, bent over at right angles ; lateral claspers slender and of almost even width throughout, rounded at the ends and not projecting beyond the uncus. Legs greyish ; hind tarsal joints speckled alternately with umber-brown and subochreous; hind tibiae slightly hairy. Exp.al. 3 10-12 millim., $ 11-18 millim. |