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Show 540 MESSRS. H. H. DRUCE AND G. T. BETHUNE-BAKER ON [June 20, Godman and Salvin's collection labelled " Ceram, Wallace," which are undoubtedly true danis. W e are obliged to place the Australian specimens under this name as the males are identical, but although there are a considerable number of specimens in Messrs. Godman and Salvin's possession from Somerset, C. York, and also in the British Museum and in our own collection, unfortunately there is not a single female amongst them ; and, so far as w e have been able to ascertain, those writers who have remarked on this species have not stated whether the female possesses any metallic blue above or not. From a note of Mr. Miskin's (loc. cit.) under B. ( = T.) serapis, " specimens from Cape York and N e w Guinea of B. sebce I have found to be tolerably stable in their appearance," one is inclined to think there is not, as no N e w Guinea female specimens have blue above, but, on the other hand, N e w Guinea males have considerably larger white disks to the fore wing. This is a point which requires looking further into when more material is available. Dr. Haase has described and figured some of the scales of this insect in his paper on the " Scent-apparatus of Indo-Australian Butterflies " (Iris, i. pp. 106, 317, pi. iii. f. 12, 1886, 1888). Herr Semper writes (loc. cit.) :-" The females from the Aru Is. and Australia have no blue on the upperside such as the illustrations of Cramer's and the examples from Ceram show." If this is the case, the Australian insect will probably come under the species named T. apollonius by Dr. Felder. G-uerin-Meneville (Voy. Coq.), in describing the male, writes:- " Le male est plus petit (45 mill, d'enverg.), entitlement noir en dessus, avec les ailes anterieures arrondies au bout; " which is of course incorrect. Genitalia. Clasps longish, moderately slender, fork arising from near base, rather short. Tegumen fairly developed, of Lycama shape, but with saddle-backed hood reduced into a mere ridge and thrown back (i. e. towards head of insect) ; hooks very long and slender. Penis most unusually stout, but not long; apical joint having a sort of hinged cover at top apparently capable of closing over the lower portion ; the apex or tip probably has the power of being withdrawn into the main tube of organ. (Plate XLVII. figs. 1,1 a.) The above description is taken from a male obtained from C. York. Var. KARPAIA, nov. (Plate XLV. figs. 3, 4.) d . Upperside allied to T. danis, but rather lighter blue ; fore wing with the white disk larger and more distinct; hind wing with the white considerably broader and with the blue extending farther towards the anal angle. Underside as in T. danis, but with the outer marginal border of hind wing which contains the blue lunules much narrower, while the lunules are the same size, consequently the white area is much enlarged. |