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Show 382 MR. H. J. ELWES ON S O M E [May 6, Lastly, I received four specimens of this genus, two males and two females, from the Naga Hills, which I describe as follows:- ATOSSA MOOREI, n. sp. (Plate XXXIV. fig. 2.) 6* ? • Resemble A. nelcinna in general outline, but larger, male 77 mm., female 82-90 m m. Antenna?, o* 13 mm., § 16-17 m m. Body from head to end of abdomen, 6* 27, $ 3 1 mm. Head and thorax black, with prothorax yellow and tegulae with a broad yellow margin. Abdomen thick, yellow, with seven black bands above and five broader ones below ; a single line of black spots on the sides. Breast yellow; antennae black, pectinate in male, minutely serrate in female. Colours greyish white, with a broad dark bar on fore wing crossing end of cell, and broad marginal band with paler markings down its centre. Hind wings greyish white, with black edges and a series of blackish streaks or spots between the veins, coalescing into an irregular band across the outer half of the wing. Beneath as above, but the dark markings less distinct. Differs from A. nelcinna in the second branch of the subcostal being forked beyond its separation from the main branch (cf. Plate XXXIV. figs. 1, 2). Along with these specimens I received a single male, which differs very considerably in markings, and though on account of the apparently variable character of the markings in this genus, I should not have been inclined to consider it as more than a variety, yet the neuration is also so different that I am forced to believe it is of a distinct species. The differences will best be appreciated by a comparison of the accompanying figures, which show that there are only 3 instead of 4 branches to the subcostal, whilst the shape of the cell in the fore wing is also different. If the same species can vary to this extent in venation as well as in markings, I can only say that hitherto accepted generic characters will have to be entirely revised, because the difference in these two specimens would by many be considered generic rather than specific. I propose to call this form ATOSSA NAGAENSIS, n. sp. (Plate XXXIV. fig. 3.) o*. Differs from A. moorei in the venation (cf. fig.), in having a black central stripe dividing the yellow collar, and in having the whole of the fore wing pale grey, excepting a band of whitish marks between the veins near the outer margin. Hab. Naga Hills (IV. Doherty). Genus HERPA, Walk. Cat. Het. ii. p. 442 (1854). H E R P A S U B H Y A L I N A , var. P R I M U L I N A , n. var. 6* $ . Nearly allied to Herpa subhyalina, Moore, Descr. Coll. Atk. i. p. 18 (1879), but smaller and of a much brighter yellow. The costal border of the hind wings not fuliginous as in that species, though the underside of the costa in the fore wing only towards the base is in the male sex darker than the upperside. The antennae |
