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Show 382 MR. A. G. BUTLER ON NEW LEPIDOPTERA. [Apr. 2, veins towards the base yellow; head, collar, and thorax purplish black, tawny or ochraceous at the sides ; abdomen fuliginous brown, ochraceous at the sides; wings below more clearly defined than above, the costal borders alternately black and yellow ; palpi and legs black and yellow; venter yellowish. Expanse, d 1 inch 3 lines, 2 1 inch 2 lines. d, Para; 2> Venezuela (Dyson). The species of this genus are marvellous mimics of the Coleopterous genus Calopteron. ALPENUS, Walker. 3. A L P E N U S P U R U S , n. sp. Wings snow-white; primaries with one black dot at base, one near the base of the median vein, two before the middle of costal margin, three in a triangle on interno-median interspace, and five in a curved series beyond the middle; secondaries with a spot at the end of the cell, one near the outer margin, and two near the anal angle ; thorax snow-white, with a black dorsal line ; collar and tegulae spotted with black; abdomen ochreous, with a dorsal series of black spots, anus and ventral surface cream-coloured : primaries below without spots. Expanse 1 inch 7 lines. Abyssinia. This species much resembles Spilosoma menthastri, but with the smooth black-spotted thorax of Alpenus. TERACOTONA, n. gen. Allied to Phragmatobia, but with longer and narrower primaries, the last subcostal branch with a single instead of a double furca; discocellulars distinctly angulated; secondaries more acuminate at apex ; subcostal branches emitted from a very short footstalk; discocellulars more transverse, less distinctly angulated; radial emitted further from the third median branch ; body much less woolly. Type, Aloa rhodophcea of Walker. 4. TERACOTONA ROSEATA, n. sp. Primaries above reddish testaceous speckled with brown ; a black discocellular spot and a subcostal spot near apex; secondaries rose-red, brightest on the abdominal area; a large black discocellular spot; thorax grey ; head, front of collar, and inner edge of tegulae brownish buff; a black spot on each shoulder, and one on each tegula ; abdomen black, rosy at the base, a dorsal stripe, the posterior margins of the segments and the anus ochreous : wings below rosy, with black discocellular spots ; borders testaceous, speckled with pale brown; primaries with an irregular transverse dusky discal belt; body below whity-brown ; anterior femora above carmine, knees black, tarsi banded with black ; venter ochreous at the sides, with two lateral series of black spots. Expanse 2 inches 2 lines. Natal (Gueinzius). Allied to T. submacula (Spilosoma submacula, Wlk., = Spilosoma obscurum, Wlk.), but with longer wings, and differently coloured. |