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Show 1885.] MR. H- DRUCE ON NEW HETEROCERA. 523 Expanse 2f inches. Hab. Ecuador (Buckley). This species is most nearly allied to P. omenta and P. lorzce but it can at once be distinguished from either of them by the entire absence of the red spots on the primaries, besides which there are many other differences. PERICOPIS, Hiibn. P E R I C O P I S I R E N E , sp. n. Primaries dark brown, slightly yellowish near the base; a pale yellow band crosses the wing from about the middle of the costal margin to the anal angle, and a submarginal row of minute white spots : secondaries with the basal half pale chrome-yellow, the outer hal dark brownish black, crossed from the inner margin near the anal angle to the apex by a band of irregular orange-coloured spots and a submarginal row of white spots. Head and thorax black, spotted with yellow; abdomen above yellowish brown, with a central black line, on the underside yellow ; legs brown. Expanse 3 inches. Hab. Paraguay (Bates). This species is nearest to P. isse, from which it is at once distinguished by having only one yellow band crossing the primaries instead of two as in that species, the band nearest the apex being entirely absent, and also by the submarginal row of white spots to both wings. PERICOPIS PHYLEIS, sp. n. This species is allied to P. phceba and P. ithrana; but from both it differs m being without the row of spots near the apex of the primaries, and in the almost entire absence of the submarginal row of spots, one only remaining in the middle of the wing close to the outer margin; the yellow band at the end of the cell is smaller and paler-coloured, the base of the wing to near the middle is bright orange-red, extending in streaks almost to the yellow band at the end of the cell: the secondaries are dark brown, streaked with bright orange-red from the base to the outer margin. Head and thorax black, spotted with yellow dots ; abdomen reddish brown ; legs black. Expanse 3 | inches. Hab. Ecuador, Sarayacu (Buckley). This fine species very closely resembles Heliconius bartletti. Mr. Buckley obtained a fine series of this insect; all the specimens are before m e and do not show any variation. LITHOSIID^. JOSIOIDES, Felder. J O S I O I D E S SIBYLL^;, sp. n. (Plate X X X I I . fig. 7.) Primaries and secondaries chrome-yellow, the apical third of the primaries brownish black, darkest on the inner margin where it joins on to the yellow ; secondaries broadly bordered with black. Head, |