LYCAENID. ARIIOPALA, 259 
the pattern of the female P. rama, but are above of a shining lilac-blue colour, whereas both 
sexes of P. rama are of a deep purplish-ultramarine colour; on the underside, moreover, 
P. dodonea is of a pale brown or whitish stone-colour, with well-defined dusky markings. on 
the forewing, whereas P. rama is of a rosy-lilac colour, indistinctly banded with bronze-brown.” 
(Sutler, 1. c, in Ann. and Mag. of Nat. Hist.) 
From Mr, Butler’s remarks on the distinctness of A. rama and A. dodonaa, no one 
should have any difficulty in identifying either of them. The male of 4. xama can at 
once be distinguished from the female by the greater extent of purple coloration on the 
upperside, but in A. dodonea, according to Mr. Butler, both sexes have an equal 
extent of blue coloration, a very unusual feature in species of this genus. As far as L 
know, both species always occur together in the Western Himalayas ; the shape of the wings, 
the position and shape of the markings of the underside is exactly the same in both, and I 
have always had a strong suspicion that the female of 4. rama is dimorphic, and that the rarer 
form of this dimorphism is A. dodone@a. To settle the matter, it will only be necessary for a 
careful observer to ascertain by an examination of the anal organs of freshly-caught specimens 
of A. dodonea, if there are any males amongst them, if there should not be, and all should as [ 
should expect, prove to be females, there would then be no doubt that we have one species only, 
and that the female isdimorphic. I have examined the anal organs of numerous dried specimens, 
always selecting the smallest as the most likely to be males, but all have been females. It may 
also be remarked that the female of 4. vama has the outer margin of the forewing scalloped, 
while the male has it entire. Every 4. dodonea I have seen has it scalloped. 
A. dodonea is a much rarer species than A. rama, and occurs in oak woods in the outer 
Himalayas from Murree to Naini Tal; I have repeatedly caught the two together in Simla with one 
sweep of the net. It has not so far been found in Sikkim or Burma, where 4. vama is met with. 
818. Arhopala anthelus, Doubleday and Hewitson. 
Amblypodia authelus, Doubleday and Hewitson, Gen. Diurn. Lep., vol. ii, p. 478, n. 5, ple Ixxiv, fig. 6, 
wale (1852); id., Hewitson, Cat. Lycenide B. M., p. 5, n. 22, pl. ili, figs. 23, 24, female (1852); Satadra 
anthelus, Moore, Journ. A. S. B., vol. liii, pt. 2, p. 39 (1884) ; Nerathura anthelus, Distant, Rhop. Malay, 
p. 263, n. 3, pl. xxiii, fig. 4, /eweale (1885). 
HasitaT: Moulmein (Westwood); Sungei Ujong, Malacca (Distant); Upper Tenas- 
serim, Mergui. 
EXPANSE: 6, 2°2 to 2'4; 9, 2:2 inches. 
DESCRIPTION: MALE. UPPERSIDE, Jd0/h wings most magnificent resplendent rich 
metallic blue. Forewing with the costa narrowly, the apex more widely, and the outer 
margin again narrowly black. Aixdwing with the costa broadly, the outer margin very 
narrowly, the anal lobe and just beyond again broadly black; the abdominal margin 
broadly brownish. UNDERSIDE, /orew7zg with a large prominent dark spot below the 
median nervure before the base of the first median nervule; otherwise as in the 
female. ‘‘ FEMALE. UPPERSIDE, 40h wings violaceous-blue. Forewing with the costal 
margin, apex, and outer margin broadly fuscous, the fuscous coloration also continued 
in a disco-cellular streak at the end of the cell. Aiedwing with the costal margin 
broadly and the posterior margin more narrowly fuscous ; ¢aé/ with the apex greyish-white, 
UNDERSIDE, 40th wings pale brownish, with the following dark purplish or pale brown 
spots and fascize margined with greyish :—/vrewing with two looped spots in the cell and 
a subquadrate spot at the end of the cell, a fractured macular fascia between the end of 
the cell and the outer margin, which is strongly dislocated at the third median nervule ; 
between this fascia and the base are a series of large irregular costal spots, a small spot 
beneath the cell between the bases of the second and first median nervules, and a more 
obscure and narrow, macular, submarginal fascia. Wi#dwing with an irregular series of five 
subcostal spots, beneath which are four smaller basal spots, a very irregular discal fascia 
extending from the second subcostal nervule to the abdominal margin, and an outer pale, 
waved fascia extending from the outer subcostal spot to the abdominal margin ; three transverse 
