Lepidoptera of Sikkim. 455 
493. Halpe zema. (Pl. XL, fig.7, 3}. 
Hesperia zema, Hew., Ann. Nat. Hist., xix., p. 83 
(1877). 
I have taken this in the Tista valley in August, and 
it seems to be fairly common at similar elevations and 
seasons as the last. 
494. Halpe dolopia. 
Hesperia dolopia, Hew., Desc. Hesp., p. 27 (1868) ; 
Ex. Butt., Hesp., t. vi., f. 60, 61. 
A rare species at low levels from April to October. 
495. Taractocera mevius. 
Hesperia mevius, Fab., Ent. Syst., ili., p. 852 (1798). 
Taractocera mevius, Wood-Mason & de Nicéville, 
J. A. 8. B., 1886, p. 385, t. xvii., 8, 3. 
T. sagara, Moore, P. Z.§., 1865, p. 792. 
Hitherto found in the Terai only by Moller, but will 
probably occur also in the outer hills. 
496. Isoteinon atkinsoni. (Pl. XI., fig. 9, 3). 
Isoteinon atkinsoni, Moore, P. Z.8., 1878, p. 698, 
t. xlv., fig. 10. 
I. subtestaceus, Moore, l. ¢., p. 844. 
Moore’s figure of atkinsont by no means corresponds to 
the description, and may be the under side of Halpe 
ceylonica, which is figured just above it. It may also 
represent the form I figure, which is rare in Sikkim, 
and which Moller considers to be the spring brood of 
I. atkinsoni. I. khasiana, Moore, of which I have seen 
the type in Moore’s collection, appears to be the same 
species. 
497. Isoteinon masuriensis. 
Isoteinon masuriensis, Moore, P. Z.8., 1878, p. 698, 
tb. xiv. iss 8. 
This species, which, according to Major Lang, is found 
at 7000 ft., frequenting clover in the North-west Hima- 
laya, is found also in the interior of Sikkim at 5 to 6000 ft., 
but seems local, as I have never observed it, though I 
have collected two seasons in the months of June to 
