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Show 10 MR. A. G. BUTLER ON NEW [J yellow streak of abdomen replaced by a beautifully shaded, apparently overlapping, series of pyriform yellow and orange spots; wings below altogether redder, the dark areas more restricted and paler, the yellowish markings less vivid, and varied with red; palpi, prothorax, and sides of abdomen irrorated with red. Expanse of wings 3 inches 4 to 6 lines. Haiti (Tweedie). T)'Pe> B M - Easily distinguished at a glance by the colouring of the abdomen. 19. CHCEROCAMPA IGNEA, n. sp. (Plate I. fig. 4.) 2 • Allied to C. scrofa, but primaries and body dull reddish chocolate instead of blackish grey; primaries with all the markings less prominent; wings below bright reddish all over instead of only on basal half of primaries, the outer margins broadly clouded with brownish ; body red-brown instead of greyish ; palpi and legs varied with white, as in C. scrofa. Expanse of wings 2 inches 8 lines. Moreton Bay (Gibbons). Type, B.M. Although nearly allied to C. scrofa, I believe that this species will prove to be constant and therefore distinct; I consider the most important difference to be the coloration of the under surface of the primaries. Genus AMBULYX, Walker. 20. A M B U L Y X M O O R E I (Boisduval, MS.). 2 • Primaries above dark clay-colour; outer margin broadly brownish, bordered internally by a diffused ochreous line deeper externally than internally, becoming silver-grey towards apex, and limited on internal margin by a brown spot (decreasing upwards, excavated on both sides), and on second and third median branches by indistinct brown dots; a nebulous, oblique, pale brownish subapical streak ; several very ill-defined, sinuated, transverse, ochreous lines across and beyond the cell; a geminate, grey, white-pupilled discocellular spot; secondaries testaceous, clouded with clay-colour, especially towards anal angle ; costa and abdominal margin creamy ; a greyish streak across the end of the cell ; an arched discal series of six red-brown lunate spots; outer margin red-brown: body bright clay-coloured; crest, metathorax, and a bar across pterygodes red-brown : wings below ochreous, becoming tawny externally ; primaries with the outer margin grey, with a white external and brown internal line; an indistinct discocellular brown litura; several very indistinct brownish transverse lines beyond the cell; secondaries with the outer margin brown ; an indistinct discocellular litura and sevaral ill-defined spots beyond the cell pale brown; body below bright ochreous, becoming tawny towards head. Expanse of wings 3 inches 11 lines. Java (Horsfield). Type, B.M. Most like A. strigilis in appearance. 21. AMBULVX MARGINATA, n. sp. Primaries above whity brown, with a pink tinge; base two |