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Show 1888.] LEPIDOPTERA OF JAPAN AND COREA. 585 18. ClNOGON ASKOLDENSIS. Smerinthus askoldensis, Oberth. Etud. d'Entom. v. p. 251, pi. i. fig. 3 (1880). Cinogon cingulatum, Butl. Trans. Ent. Soc. 1881, p. 2. Two specimens in Pryer's collection, one of which is labelled Oiwake. These agree well with Oberthiir's figure of 5. askoldensis and also with Butler's description of G. cingulatum. Oiwake, Japan (Pryer); Askold, Hakodate (Andrews). 19. ACOSMERYX ANCEUS. Sphinx anceus, Cram. Pap. Exot. iv. p. 124, pi. 355. f. A. Enyo anceus, Hiibn. Verz. Schmett. p. 132. 1423; Walk. Cat. Lep. Het. viii. p. 119. Acosmeryx anceus, Butl. Trans. Zool. Soc. 1876, p. 544, pi. 90. figs. 11 & 12 (larva and pupa). Acosmeryx metanaga, Butl. Ann. & Mag. Nat. Hist. (5) iv. p. 350(1879). Pryer says that this species is common at Yokohama, in which locality the eight examples in his collection were probably obtained. In some specimens there is no trace of yellow in the discal spot; but as this spot is really a small tuft of raised yellow scales surrounded witb a more or less distinct fuscous ring, absence of the yellow may be due to condition of the specimens. Yokohama (Pryer); Kiukiang (Pratt) ; Amboina. 20. AMBULYX SCHAUFFELBERGERI. Ambulyx schauffelbergeri, Brem. & Grey, Beitr. zur Schmett. Nord. China's, p. 53. I got a specimen at Nagasaki in June; three coll. Pryer and two from Mr. Manley. This is probably a local form of A. substrigilis, Westw., as possibly are also A. maculifera and A. consanguis, Butl. The Japanese insects agree very well with the last-named, but the transverse lines are not clearly defined. Nagasaki (Leech) ; Yokohama (Pryer and Manley) ; North China. 21. TRIPTOGON SPERCHIUS. Smerinthus sperchius, Men. Enum. Lep. Mus. Petrop. p. 137, pi. 13. fig. 5 (1857). Triptogon piceipennis, Butl. Ann. & Mag. Nat. Hist. (4) xx. p. 393 (1877); HI. Typ. Lep. Het. pt. ii. p. 2, pi. xxi. fig. 4 (1878). Triptogon gigas, Butl. Proc. Zool. Soc. 1875, p. 253; 111. Typ. Lep. Het. pt. v. p. 12, pi. lxxx. fig. 5 (1881). (Pryer records the larvae as feeding on chestnut in the neighbourhood of Yokohama.) In tone of colour, curvature, angulation, and distance apart of the transverse linear markings this species exhibits much aberration. With the exception of an example I took at Tsuruga in July, and one sent m e by Manley from Yokohama, all m y specimens are from |
