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Show 268 MR. A. G. BUTLER ON THE GENUS EUPLffiA. [May 8, 7. A Monograph of the Diurnal Lepidoptera belonging to the Genus Euplcea, with Descriptions of m a n y N e w Species; founded principally on the Specimens in the Collection of the British Museum. By A R T H U R G. B U T L E R , F.Z.S., Assistant, Zoological Department, British Museum. (Plates XXIX., XXX.) The last synopsis of this genus was made in 1847 by Mr. E. Doubleday, in his ' Genera of Diurnal Lepidoptera.' The number of species at that time amounted to thirty-seven; in the present monograph it will be seen that the species are more than doubled. A great proportion of them have hitherto been undescribed*. I have endeavoured in the present paper to arrange the species as nearly as possible in a regular gradual series, so as to bring together the more closely allied forms. I have also made an effort to separate the numerous species into divisions and subdivisions, in order to facilitate their determination; these sections are, however, to some extent necessarily arbitrary, owing to the variations to which some of the species are subject, and to the difficulties arising from the knowledge of only one sex. Genus EUPLOSA, Fabricius. Euplara, Fabricius (Illiger's Mag. 1807), Horsfield, Boisduval, Doubleday, Moore. Terpsichrois, Crastia, Salpinx, Didonis, Hiibner, Verz. bek. Schmett. (1816). Danaus, p., Latreille. Danais, p., Godart. Danaida, p., Guerin. Division I. Alar supra fuscar, plerumque elongatar et carulescenles; apice acuto, raro obtuso, plerumque maculis submarginalibus albis caruleisve serie duplici positis: subtus maculis discalibus carruleis aut albis, plerumque submarginalibus albis. Subdivision 1. Alee plerumque magna: et carrulescentes: anticar subtus maculis, posticar punctis discalibus, punctoque uno in cella posito. 1. EUPLCEA PROTHOE. Danais prothoe, Godart, Enc. Meth. ix. p. 177. n. 1 (1816). Papilio midamus, Cramer, Pap. Exot. iii. pi. 266. f. A, B (1780). Terpsichrois alea, Hiibner, Verz. bek. Schmett. p. 16 (1816). * Several species, which I had overlooked whilst writing the present paper, will be found in the Appendix. |