natural, history

E. erepuscu/aris Linn. may be distinguished at once by the uncus, which is slender,deep and flattened dorsally.In philippensis Swinhbe the single cornutus, which is composed of coarse spines, isstraight, of even width and one-half as long as the aedeagus.The remaining species, variegata Butler and terminitineta Strand may be distinguishedfrom each other by the uncus; in variegata it is of even width as far as thehooked tip; in terminitincta it is arcuate, being broadened at the middle and taperingapicad and basad.ephesperis HUbner, 1823, Verz. bekannt. Schmett., 272,Nyetipao.crepuscularis Linn. Cramer nee Linn., 1779,VitI. Kapellen, 2. pI. 159: A, Phalaena.subsp. /aetitia Butler, 1878, Ann. Mag. nat. Hist.,(5) I: 291, Nyetipao.1879, Ill. Lep. Het. B.M., 3: 26, pI. 47: 9,Nyetipao.abo noetualis Strand, 1919, Arch. Naturgesch.,83 (A 10): 135, Nyctipao.subsp. niasana Swinhoe, 1918, Ann. Mag. nat. Hist.,(9) 2: 85, Erebus.subsp. ma/anga Swinhoe, 1918, tom. cit., 86, Erebus.India, Burma,Siam, Andaman Is.,Malaya, Sumatra,Borneo.S. & C. Cbina,Formosa, Japan.Nias I.Java, Bali, Lombok,Sumba, Flores,Timor.intermediaPagenstecher, 1900, Zoologica, Stuttgart,12 (No. 29): 96, Nyetipao.bismarcia Hampson, 1913, Cat. Lep. PhalaenaeB.M., 12: 297, pI. 207: 1,2, Nyetipao.subsp. a/bicans Roepke, 1935, Zooi. Meded., 18: 278,pI. 14: I (J nee 'fl), Erebus.insularis Roepke, 1935, loc. cit., pI. 14: 2, Erebus.Syn. nov.Distinct, but as yet unnamed subspecies of inlermediaalso occur on the Witu and AdmiraltyIslands.BismarckArchipelago.Celebes.philippensis Swinhoe, 1918, Ann. Mag. nat. Hist., (9) 2: 86,Erebus.The type series consists of 2