166 
LEPIDOPTERA INDICA. 
Habitat. —N.W. and E. Himalayas. 
Distribution and Habits. —Mr. P. W. Mackinnon records it as ££ fairly common 
in May in the valleys to the N.E. of Masuri, 1ST.W. Himalaya” (de Niceville, J. 
Bombay N. H. S. 1898, 592). We possess specimens from Masuri, taken by Capt. T. 
Hutton, and also from Garhwal and Nepal, the latter taken by General G. Ramsay. 
Ool. C. Swinhoe has it from Sikkim, taken in the Lachin Lachoong Valley, at 
8000 feet elevation. Mr. H. J. Elwes records it as C£ not an uncommon species in 
Sikkim at from 7000 to 9000 feet elevation, where I have several times seen and 
taken it on Jellapahar, on Sinclial, and the Groompahar ridge. It frequents dense 
forest, where it flies high over the tops of the trees, from April or even sooner, on 
into July and August, when most of the females are worn and much broken. It may 
best be taken, like most of the high-flying forest insects, by waiting on a sunny day 
at an open space at the top of a hill, or when it occasionally comes down to settle 
on the path” (Tr. Ent. Soc. 1888, 425). Mr. L. de Niceville also records it as 
£e occurring in the thick, high forests of Sikkim, from 7000 to 9000 feet, from March 
to August.” (Sikkim Gaz. 1894, 171). 
Our illustrations on Plate 430, figs. 1, la, b, represent the males with the 
abdominal 4 fold both closed and open ; and lc, the female. 
BYASA POLLA (Plate 429, fig. 2, <?). 
Papilio ( Byaso ) Polla, de Nieeville, Journ, As. Soc. Bengal, 1897, p. 565, pi. 4, fig. 28, <$. 
Imago. —Male. ££ Hpperside. Both wings shining black. Forewing with the 
usual deep black longitudinal streaks within the cell, and similar ones between the 
veins. Hindwing with a large cliscal pinkish-white patch occupying the outer end 
of the cell, anteriorly bounded by the second subcostal, posteriorly by the first 
median nervule, the inner half of the portion in the first median interspace being 
heavily sprinkled with black scales ; the outer edge of the patch is scalloped ; four 
large submarginal carmine lunules all irrorated with black scales, the anterior one 
in the subcostal interspace whitish ; tail broadly tipped with carmine; the posterior 
end of the abdominal fold and the two tooth-like projections of the wing-membrane 
between it and the tail, as well as the first projection beyond the tail, somewhat 
broadly edged with carmine. 
Underside. Both wings as above, but of a darker shade of black. Forewing 
as on upperside. Hindwing with the discal pinkish-white patch extending quite up 
to the cell but not invading its outer end; the patch is inwardly continued from the 
first median nervule to the submedian nervure by a carmine spot; the submarginal 
lunules as above, but of a pure rich carmine, the two inner ones continued to the 
outer marginal carmine edging of the wing, which latter is broader than on the 
