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Show 230 MR. W. SCHAUS ON NEW HETEROCERA [Mar. 6, 19. OPHARUS GEMMA, sp. nov. Palpi, legs, and abdomen below blackish. Antennae black. Head, collar, and thorax light greyish brown ; two minute black points on the collar. Abdomen dorsally orange, with a broad subdorsal brownish line tapering towards the anal segment. Primaries light greyish brown ; an indistinct dark median shade not reaching the margins ; beyond the cell a large dark brown spot cut by vein 5. Secondaries greyish brown. Exp. 55 millim. Hab. Aroa, Venezuela. 20. PSEUDAPISTOSIA ORDINARIA, sp. nov. Palpi, head, thorax, and primaries light brown. Secondaries whitish. Abdomen dorsally browm at the base, otherwise yellow with a subdorsal and a lateral row of short black streaks; underneath brown. Exp. 41 millim. Hab. Castro, Parana. 21. HALISIDOTA PAGANA, sp. nov. 3. Palpi orange, tipped with black. Head, collar, and thorax black; the patagia black bordered with orange. Abdomen dorsally black; some small yellow marks laterally and underneath ; the anal segment entirely yellow. Primaries above dark brown with the veins very distinct. Secondaries dull brown. Underneath, the wings are dull brown, yellow at the base. Exp. 36 rnillim. , Hab. Castro, Parana. Obs. The 2 differs in having the last three segments of the abdomen yellow, with an interrupted subdorsal brown line. 22. HALISIDOTA LINEATA, sp. nov. Palpi, head, and collar black. Thorax brown, shading to light buff posteriorly. Abdomen dorsally yellow, paler at the base ; underneath whitish, with a ventral and lateral black line. Primaries above light buff, with a broad blackish streak extending from near the base on the median vein to the outer margin just below the apex; a marginal row of dark points. Secondaries white. Underneath whitish ; the primaries with the costal margin buff, and a small subapical dark streak. Exp. 35 millim. Hab. Castro, Parana. 23. PH^EGOPTERA JONESI, sp. nov. Palpi black, orange at the base. Head and collar buff, with two black spots on the latter. Thorax buff, with a few dark streaks. Abdomen dorsally orange ; white below, with a ventral row of black marks, and a lateral row of small black spots. Primaries above buff; the veins brown; the outer margin broadly brown, inwardly very dentate towrards the apex ; a large brown spot at the end of the cell; an outer broad, irregular, transverse brown band, interrupted between veins 3 and 4, and not quite reaching either the costal or inner margins. Secondaries above whitish, narrowly margined with brown at the outer angle; a transverse |