NOVITATES ZOOLOGICAE Vol. XXXVI. APRIL 1931. No. 2. <;eometrid descriptions and notes. By LOUIS B. PROUT. A. INDO-AUSTRALIAN. Subfam. OENOCHROMINAE 1. Ozola concreta sp.n. <J$, 25-29 mm. Antennal cilation of 3 1 J— 2. Hindtibia of <J very broadly dilated, on outerside concave, on innerside with groove containing strong brown hair-pencil (almost as in indefensa Wan-., 1899). Head and body concolorous with wings. Forewing, especially in the <$, narrow, apex, especially in the $, somewhat produced, termen strongly oblique, but very little (sometimes not appreciably) concave between apex and R 1 , hardly or very weakly bent about R' ; whitish, with very dense vinaceous-brown mottlings and blackish irroration, so that the ground-colour is scarcely anywhere shown except at apex and irregularly in parts of the narrow median area ; cell-dot blackish, not very sharp, but generally a little enlarged by some grey diffusion ; antemedian indefinite, excurved, band-like, rather distally placed, in cell only 1 mm. from cell-dot or little more ; post-median of a slightly brighter vinaceous than the rest of the mottling, duplicated distally by a second line or narrow shade, the two weakly but almost equally sinuous, thus much more nearly parallel than is usual in the macariata group, very slightly divaricating posteriorly ; subterminal greyish, rather weak but generally complete, occasionally submacular ; blackish interneural dots or dashes at termen. Hind/wing with termen not or scarcely produced at R l ; costal margin pale, more broadly at base ; the rest mottled and irrorated as forewing ; cell-dot moderately strong, crossed, or touched distally, by the almost straight median line, which is at least as bright as the postmedian of the forewing. more definitely formed than in basisparsata Walk. (1S02) but not quite so strong as in macariata Walk. (1SG2) and indefensa Warr. ; postmedian more bent, but very indistinct or almost obsolete ; subterminal generally well discernible. Underside similar or with rather stronger contrasts, the forewing generally with proximal and distal areas more broadly dark-shaded, the apex remaining pale. Langkawi I., 14-29 April 192S (H. M. Pendlebury), 1 & 3 ?$, the type in coll. Brit. Mus. Also 1 $ from Kedah Peak, 3,300 feet, 21 March 1928 (H. M. Pendlebury), in coll. F.M.S. Museums. Rather variable in colour. Readily distinguishable from macariata by the less extreme shape and the more oblique, more circumscribed central area of 11 151
BioStor
