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Show 1875.] SPECIES OF SPHINGID.K. 13 abdominal black strigae less defined : wings below altogether paler than D. lichenea, the transverse bars less defined, only two on secondaries. Expanse of wings 5 inches 3 lines. Rio (Stevens). Type, B.M. Placed by Mr. Walker with D. lichenea and described in his first paragraph as the female of that species, the true female being described more briefly in the second paragraph. 27. DILUDIA MELANOMERA, n. sp. cS . Wings slightly more elongate, altogether much darker ; the apical patch black, with a zigzag grey line running longitudinally through it; median band externally bordered and spotted at end of cell with black ; submarginal spots black instead of dark grey ; secondaries black-brown, a slight double nebulous streak from anal angle : body much darker, head and prothorax blackish; abdomen with lateral bars more continuous and blacker : wings below also darker, transverse lines much darker, more dentate; body below rather paler. Expanse of wings 4 inches 10 lines. Silhet (Dale). Type, B.M. This appears to be the northern form of D. discistriga. 28. DILUDIA VATES, n. sp. Primaries above light grey, two or three whitish spots on basal half of costa and at centre of discoidal cell, also a double^ angulated discal series of brownish-edged lunate spots; a small oblique spot towards middle of costa, a less oblique litura crossing the cell near its termination, two parallel streaks within interspaces, a small lunule beneath them, an irregular streak margining the apical patch, and a series of spots at the end of the nervures upon the fringe black-brown ; an indistinct eliscal series of brown dots ; fringe partly white ; secondaries smoky brown, abdominal area paler; costa testaceous, anal angle grey, crossed by two brown lunules ; thorax and head grey; pterygodes margined externally by a black streak; metathorax margined behind by a transverse angulated black streak; abdomen pale brown, with a brownish lateral streak and a dorsal black line : wings below whity brown, external area and a discal bar slightly darker brown ; fringe spotted with blackish ; palpi varied with white, pectus white ; abdomen whity brown; tarsi of front pair of legs blackish. Expanse of wings 3 inches 6 lines to 4 inches. Ceylon (Templeton) ; Madras. Type, B.M. Var. Slightly darker, a geminate white spot near external angle of primaries. Expanse of wings 4 inches 4-9 lines. Silhet (Sowerby), Moulmein (Clerck). Type, B.M. Our example from Madras has a label on it, bearing the MS. name Sphinx vates. The species is nearly allied to D. incerta of "Walker, from China; it was confounded, in the collection, with D. discistriga. 29. DILUDIA NATALENSIS n. sp. Primaries above snow-white, varied with grey, two transverse |