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Show 1896.] ON LEPIDOPTERA FROM NYASA-LAND. 851 6. O n a Collection of Lepidoptera from Nyasa-land presented to the M u s e u m by Sir Harry Johnston, K.C.B., and collected by M r . J. B. Yule. By A R T H U R G. B U T L E R, Ph.D., F.L.S., F.Z.S., Senior Assistant-Keeper, Zoological Department, British Museum. [Received September 7, 1896.] (Plate XLIII.) From the few notes as to exact localities which occurred on the envelopes it would seem that the present collection was obtained partly, if not altogether, on the Songwe plain, N . W . Nyasa, in 1895; but so very few of the specimens are accompanied by notes as to locality and date of capture, that I have not thought it advisable to burden the ' Proceedings' by repeating references to descriptions and figures, most of wdiich have already been given in other papers on Nyasa Lepidoptera published in the Society's ' Proceedings.' The collection contains examples of five new species and of a new form of a known species ; but, in addition to these, there are several species of interest, such as the wet-season form of Ypthima granulosa ; examples of the broad-bordered variety of Charaxes saturnus, to which I gave the name of laticinctus; a somewhat worn female example of the rare Charaxes violetta ; the white variety of Euralia mima; additional examples of Metacrenls crawshayi; a curious variety of the female of Alaena nyassce having the base of the pos- • terior wings white; both wet- and dry-season forms of Teracolus opalescens; the rare Teracolus hildebrandtii; a dry-season female of Teracolus subfasciatus, differing in its superior size, the larger apical orange patch on the primaries being without inner blackish limitation, and the under surface more strongly reticulated ; both seasonal forms of Teracolus emini; the male of Belenois diminuta, showing that the latter is the dry-season form of B. crawshayi; a good series of Papilio nlvlnox, consisting entirely of males (as the only example which we possess of P. taboranus is a female, it seems probable that the differences in pattern and colouring between these two forms of Papilio are due to sex, in which case the name of P. taboranus will have to stand for the species); an example in good condition of a rare Hesperiid (Cgclopldes ivillemi), of which the Museum previously only possessed a broken example. Among the Moths, the most interesting additions, apart from the new species, are two male examples of Hlbrildes norax. Respecting Hlbrildes we know very little at present: if the female resembles the male, no examples have hitherto been received ; but it is possible that the sexes may be entirely dissimilar, and that my Hlbrildes crawshayi may eventually prove to be the female |