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Show 488 MR. HERBERT DRUCE ON NEW SPECIES [Apr. 19, NYMPHIDIUM AUGEA, sp. n. (Plate XXXIV. fig. 11.) Female. Head, antenna?, collar, tegula?, and thorax black; abdomen and legs yellowish white. Primaries yellowish white, the base, costal margin, apex, and outer margin broadly bordered with <lark blackish brown ; some minute black streaks along the costal margin edged pale grey; a marginal greyish-white waved line extends from the apex to the anal angle ; a submarginal orange-red streak close to the anal angle. Secondaries yellowish white; a submarginal wide orange-red band, bordered on both sides with dark brown, extends from the apex to the anal angle; a marginal bluish-white waved line follows the orange band round the outer margin ; the fringes of both wings black and white. Under side similar to the upper side, but the dark margins to the wings broken into spots. Expanse 1| inch. Hab. Bolivia: La Paz (Mus. Druce). NYMPHIDIUM MEDUSA, sp. n. (Plate XXXIV. fig. 3.) Male. Head, collar, tegula?, and thorax black; antenna? black, ringed with white; abdomen white, the anus black; legs white. Primaries white, the base, apex, and part of the outer margin black ; a zigzag white line crosses the black apex and continues partly down the outer margin. Secondaries white, with three black spots round the outer margin; a chrome-yellow streak at the anal angle. Under side the same as the upper side. Expanse 1| inch. Hab. Peru : Chanchamayo, Rio Colorado (Mus. Druce). Near Nymphidium leucosia. ARICORIS STRIATA, sp. n. (Plate XXXIV. fig. 12.) Female. Head, antenna?, collar, tegula?, thorax, and abdomen black; under side of thorax and legs brown. Primaries black, crossed beyond the cell from the costal margin to the anal angle by a wide white band ; the fringes black. Secondaries black, streaked with blue near the anal angle. Under side pale brown, the veins all yellowish brown; the white band on the primaries as on the upper side; the secondaries with a marginal row of white spots. Expanse 1| inch. Hab. Ecuador (Mus. Druce). Nearest Aricoris jansoni Butler, but with no blue gloss on the upper side, and a white band instead of a yellow one. STALACHTIS CANIDIA, sp. n. (Plate XXXIV. fig. 8.) Male. Head, antenna?, collar, tegula?, and legs dark brown ; palpi black above, white on the under side ; abdomen black, the three anal segments white on the upper side, the anus black, a row of four white spots on each side of the abdomen, the under |