254 LEPIDOPTEBA INDICA. 



de Niceville notes that the difference in the neuration of the forewing in the 

 opposite sexes of species of this genus is considerable, and appears to be entirely due to 

 the presence of the secondary sexual characters of the male. The sex-mark has been 

 figured and described by AurivilKus with the corresponding part of the wing of the 

 female as it exists in Tliecla u'-album, Knoch, a European species. (Kong. Svens. Vet- 

 Akad. Handl. v. p. 21, pi. 2, figs. 13, 14 (1880). 



Type, Paj^ilio pruni, Linnaeus, from Europe. 



STRYMON SASSANIDES. 

 Plate 701, figs. 2, ^ , 2a, ? , 2b, ^ . 



Thecla sassanides, Kollai-, Denkschr. Akad. Wiss. Wien, Math. Nat. CI. i. p. 51 (1850). Westwood, 

 Gen. Diurn. Lep. ii. p. 486 (1852). de Niceville, Butt, of India, iii. p. 298, pi. 27, fig. 202, ^ 

 (1890). Mackinnon and de Niceville, Journ. Bo. Nat. Hist. See. 1898, p. 383. Leslie and 

 Evans, id. 1903, p. 674. 



Thecla derla, Moore, Proc. Zool. Soc. 1865, p. 507, pi. 31, fig. 11, and 1874, p. 272. 



Theda mirahilis, Erschoff, Lep. Turk. p. 7, pi. i. fig. 4, 5 (1874). Swinhoe, Trans. Ent. Soc. 1885, 

 p. 342. 



Stnjmon mirabila{f), Butler, Ann. Mag. Nat. Hist. 1882, p. 208. 



Imago. — Male. Upperside brown, with a slight purplish gloss in certain lights, 

 and under a magnifying glass can be seen some golden very minute irrorations sparsely 

 sprinkled all over both wings ; both wings with fine black outer marginal line. Cilia with 

 the basal half brown, outer half white, marked and tipped with brown and black on the 

 lower part of the hiudwing, a rather long filamentous black tail, tipped with white at 

 the end of vein 2, and sometimes a small orange spot on the anal lobe. Underside 

 greyish-brown with a purplish or lilac tint, very uniform in colour on both wings. 

 Forewing with a thin white discal band, edged inwardly by thin black lunules, 

 very slightly outwardly curved, somewhat dislocated at vein 4 and sometimes also at 

 vein 2, a black outer marginal line inwardly edged by a pure white line, two rather 

 large and prominent black sub-marginal spots in interspaces 2 and 3, sometimes smaller 

 black spots above and below them. Hindwing with a discal band like that on the fore- 

 wing, but not dislocated, somewhat sinuous, its lower extremity elbowed inwards on to 

 the abdominal margin one-third above the anal angle ; marginal line as in the forewing, 

 a large black sub-marginal spot in interspace 2, a black spot on the anal lobe, some 

 greyish-white scales between them, an inner series of small black lunules, decreasing in 

 size upwards and becoming obsolete before the apex, an orange cap between the large 

 sub-marginal black spot and the inner black lunule opposite it, an indication of orange 

 on the outer side of the next upper lunule, all the inner lunules sometimes edged 



