NOVITATES ZOOLOGICAE XXXVIII. 1932. 103 NEW EXOTIC GEOMETRIDAE. By LOUIS B. PROUT. SuBFAM. LARENTIINAE. 1. Larentia hancocki sp.n. (J, 39-41 mm. Nearly related to heteromorpha Hmpsn. {Tr. Zool. Soc. Lonrl. xix. (2), p. 128, t. iv, f. 61) but much larger. Antenna slightly longer, the pectinations slenderer, contmuing to about the 26th, sometimes even to the 28th joint (in heteromorpha to about the 23rd-25th). Forewing with SC* from apex of distal areola or slightly stalked beyond, or still more distal ; much more glossy than heteromorpha, rather thin but tough (texture of so many high-altitude or winter Larentiinae) ; darker and more uniform grey-brown, relatively weakly marked, the white element almost entirely suppressed, or at best an admixture of whitish scales in the three palest lines (borders of median area and the interrupted subterminal) ; median band generally broad (6-5 to 8-5 mm. at costa), fairly solid or with paler centre and distinct proximal and distal line) ; postmedian line more jagged than in heteromorpha, at least anteriorly to the double lobe ; fringe less sharply marked than in hetero-morpha. Hindiving very glossy, pale drab-grey ; a minute cell-dot ; traces of the markings of the underside, especially the postmedian (which ends in a darker spot at abdominal margin) and sometimes some suffusion proximal thereto. Underside well marked, though less sharply than in heteromorpha, the ground-colour being less whitish ; forewing with the principal markings repro-duced, excepting the antemedian (the dark median suffusion continuing to the base) ; hindwing at least with sharp cell-dot, strongly sinuous (twice incurved) postmedian and somewhat macular presubterminal shading, often also with some additional though weaker lines. Ruwenzori : Bujuku, 12,500 feet, 18 August 1931, 6 ,i.^, and 12,000 feet, 16 August, 2 ^S (G. L. R. Hancock). Type in Mus. Brit. Rather variable, but not extravagantly. The browii tinge which usually suffuses the median area of the forewing above is more reddish than that which suffuses the jsroximal subterminal region and (more weakly) the subbasal, this latter tinge more inclining to cinnamon or tawny oUve. A more strongly marked cJ from Kigo, 10,500 feet, 20 August, with the shades lighter and brighter (cinnamon-buff to clay-colour), the basal and median bands darker mixed, and strong proximal spots to the subterminal, is probably conspecific ; expanse 39 mm. The much larger size and the grey hindwing distinguish hancocki at once from heteromorpha ; the size equally from the still darker wellsi Prout (1928), which may possibly prove a somewhat melanic form of heteromorpha. Both were taken with hancocki at 12,000 feet. 2. Gonanticlea penicilla sp.n. cJ, 35-36 mm. Forewing closely like that of amplior Th.-Mieg (1910) but looking slightly less broad, on account of the rather less square-cut tornus ; pale
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