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Show 260 MR. BUTLER ON NEW SPECIES OF SPHINGIDcE. [Mar. 16, lated bar, intersected by a brown undulated line, not reaching costa or inner margin ; a broad grey-brown central fascia, margined and intersected by five lunulated ill-defined black lines; a white spot at end of cell; disco-submarginal area crossed by two confused zigzag black lines, and widening abruptly near apex : secondaries smoky brown, blackish at anal angle, pale at base, whitish on basicostal area; a pale brown waved discal streak, becoming white towards anal angle ; a pale brown submarginal anal litura : head, prothorax, and tegulae dark brown, remainder of thorax greyish; external margins of tegulae blackish ; abdomen grey-brown, with a row of lateral dark brown spots: wings below grey-brown, a pale dusky-edged bar from costa of primaries to anal angle of secondaries; head, thorax, and anus below brown ; base of palpi and femora of legs and venter white. Expanse of wings 2 inches 5 lines. Oaxaca, Mexico (Hartweg). Type, B.M. Genus DILUDIA, Grote. 56. D I L U D I A G R A N D I S , n. sp. Intermediate between D. obliqua and D. discistriga ; most like the latter, but readily distinguished by the single broad black bar from costa to end of cell (enclosing a distinct white point on lower discocellular nervure), almost joining a single long distinct black streak on second median interspace; apical patch grey, broader than in any other species, widely encircled with black: secondaries rich brown, with costa and a subcostal patch at base silky testaceous; anal angle whitish, as in D. obliqua, crossed by four black bars, the two central ones well defined, running across the centre of the wing: body whitish grey ; thorax with usual black streaks ; abdomen with dorsal and lateral interrupted black streaks : wings below altogether whiter than D. obliqua, otherwise somewhat similar. Expanse of wings 5 inches 8 lines. Nepal. Type, coll. F. Moore. 57. DILUDIA RUFESCENS, n. sp. Allied to the preceding, but altogether redder in tint; the primaries much broader, irrorated all over with golden scales, a distinct oblique black bar from costa to end of cell, discocellular lunate whitish spot large and distinct, apical patch broader and more irregular than in any of the allied species ; discal lunulated lines broadly separated, but less defined, not filled in with whitish : secondaries broader, blacker, with two central converging and a third discal black streaks : body much redder; lateral streak blacker; three or four lateral large creamy ochreous black-edged spots: underside much as usual. Expanse of wings 4 inches 9 lines. North India. Type, coll. F. Moore. Genus HYLOICUS, Hiibner. 58. H Y L O I C U S ASIATICUS, n. sp. Nearly allied to H. pinastri, larger, darker; outer margin of |