PAPILIONINM 
165 
BYASA LATREILLEI (Plate 430, fig. 1, la b, lc, ? ). 
Papilio Lafreillii, Donovan, Nat. Eep. iv. pi. 140 (1826). Staudinger, Exot. Schmett. i. p. 9 (1884). 
Elwes, Trans. Ent. Soe. Lond. 1888, p. 425. Rothschild, Nov. Zool. ii. p. 261 (1895). 
Papilio Minereus, Gray, Zool. Misc. p. 32 (1831); icl. Lep. Ins. Nepal, p. 5, pi. 1, $ (1846). 
Doubleday and Plewitson, Gen. D. Lep. i. p. 9 (1846). Westwood, Cab. Orient. Ent. p. 81, pi. 
40, fig. 1 $ (1848). Moore, Catal. Lep. Mus. E. I. Company, i. p. 97 (1857). Felder, Yerh. 
Z. B. Ges. Wien. 1864, p. 325. 
Papilio ( Pyasa) LaiTeillii , de Niceville, Sikkim Gazetteer, 1894, p. 171 ; id. Journ. As. Soc. Bengal, 
1897, p. 566. 
Imago. —Male. Upperside. Forewing greyish fuliginous-black, with a black 
longitudinal streak between the veins, and others within the cell. Cilia black. 
Hindiving greyish fuliginous-black basally, deep black in the posterior interspaces; 
with a pinkish-white lower-discal patch composed of three portions placed in the 
interspaces between the lower median and the radial, the outer portions each 
excavated posteriorly, the inner one more truncated; beyond is an upper sub« 
marginal sullied-white or pale crimson-white small spot which is either oval or 
lunular, below this are the ordinary-placed lower submarginal lunules, a smaller spot 
at anal angle of lower median, and a tail spot, which are all small and either of a 
dull pale crimson or bright crimson; abdominal marginal lappet when unfolded 
displaying a longitudinal androconial patch of white dense woolly hairs. Underside 
much paler ; greyish-fuliginous. Hindiving with the three lower discal patches and 
outer submarginal markings as on the upperside ; the lower lunules and tail spot 
being brighter coloured ; a slender continuous lower discal white streak edged with 
crimson is also present in the submedian interspace, and sometimes an upper white- 
speckled contiguous dot in the lower subcostal interspace, and also a submarginal 
small white lunule in the angle of the upper subcostal interspace. Thorax and 
abdomen above fuliginous black ; front of thorax above and sides beneath, collar and 
front of head, and abdomen beneath crimson ; abdomen beneath with black lateral 
spots and segmental cross-bands ; anal valves crimson ; antennse and legs black. 
Female. • Wings broader. Upperside paler than in the male. Hindiving "with 
the three portions of the lower-discal white patch somewhat larger, and with an inner 
narrow portion extending from the lower median to the marginal anal angle, this 
portion being sometimes crimson edged posteriorly, and also an upper small white 
or speclded-white spot in the lower subcostal interspace; the submarginal lunules 
and tail spot somewhat larger. Underside paler than the upper. Hindwing with 
markings as on the upperside, and also with a small white spot within the angle of 
the upper subcostal interspace, the submarginal lunules and tail spot brighter 
crimson. 
Expanse, d ?, 4 to inches. 
