136 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XXVI. 



spherical in shape. The geographical range of the genus is confined to the 

 Indo-Malayan Region. 



162. Curetis thetis, Drury. — Male (PI. H., fig. 56) — Upperside: no hairs 

 on the disc ; dark cupreous red, glossy and shining. Fore wing : no fringe 

 of hairs on the inner margin after base ; base irrorated with dusky scales ; 

 costa edged with a narrow, inwardly jagged, jet-black band that broadens 

 to the apex, thence continued along the termen, decreasing in width to 

 the tornus ; opposite the apex the inner edge of the black is more or less 

 acutely angulate. Hind wing : base and dorsum broadly but slightly 

 irrorated with dusky scales ; costa narrowly, dorsal margin more broadly 

 pale ; termen very narrowly and evenly margined with black. Underside : 

 shining silvery-white. Fore and hind wings crossed transversely by discal 

 and inner subterminal, somewhat lunular dark lines and a more or less 

 obsolescent outer subterminal line of minute dark dots. These markings 

 generally very indistinct but traceable ; in some specimens more clearly 

 defined but never prominent. Antennse (club not flattened, it and shaft 

 orange red inside), head, thorax and abdomen dusky black; in some 

 specimens the head, the thorax laterally and the base of the abdomen 

 brownish mouse-colour ; beneath : the palpi, thorax and the basal half of 

 the abdomen medially silvery-white, (the palpi and legs often touched with 

 copper-red,) the sides and apex of the abdomen dusky black. Female. — 

 (PI. H., fig 56a). Upperside : fore wing ; dark brownish-black ; a large 

 medial patch that extends from vein 1 to vein 4, enters the lower half 

 of the cell and extends from base outwards for about two-thirds the 

 length of the wing, white ; at the base of the wing this patch is shaded and 

 obscured for a short distance by dusky grey or black. Hind wing : pale 

 dusky black ; a darker, short, broad, brownish-black streak from base 

 along the subcostal vein, that outwardly broadens into an irregularly 

 round patch beyond which is a broad, short, upper discal, white band with 

 ill-defined and somewhat diffuse margins. Cilia, fore and hind wings : 

 light-brown or white. Underside : as in the male but the markings still 

 more indistinct. Palpi much longer in the female than in tlie male, legs of 

 both sexes thick, tarsi broadened at extremities. Expanse : Male and 

 female, 41-45 mm. 



E(/ff. — The egg is more or less hemisperical in shape. The surface is 

 moderately shining and covered with large, coarse-walled, deep cells 

 though the walls are not actually very thick ; there are very slight thicken- 

 ings at each wall-intersection though these are not always prominent. The 

 largest cells are hexagonal, more or less regular and are situated about the 

 middle of the perpendicular sides, the size decreasing very little upwards, 

 until they get close to the deep, rather conspicuous, concave-bottomed, 

 perpendicular-sided, central micropyle-cell which is about O'l mm. in 

 diameter ; this micropyle is surrounded by seven irregular, badly-formed, 

 small cells and this row again by 9 much larger ones (0'15 mm.), the next 

 row being larger still ; there are 7 rows from top to bottom, not counting 

 the very small ones round the micropyle and the lowest row of all are also 

 rather small ; there are 16 cells round the broadest part ; each of these are 

 about four wall-diameters in width ; the bottoms of all are finely 

 chagreened. Colour is light green with the walls enamel-white. B : 1'15 

 mm. ; H : 0"72 mm. B of smallest cell : 0*05 mm. 



Larva (PI. II., fig. 28). — Is quite abnormal in shape being longly 

 oval seen from above, the anal end somewhat narrower than the 

 fore-end generally except that, occasionally, the larva shrinks the 

 portion about segment 9 into more or less of a waist ; the head is hidden 

 .under segment 2 which is more or less a short parabola in outline (a 



