162 LYCAINID. LAMPIDES. 
Hapirat: Malda, Sikkim, Calcutta, Assam, Orissa, Bangalore, Calicut, Nilgiris, 
Wynaad, Travancore, Ceylon, Andaman Isles, Burma, Malay peninsula, Java, Borneo, 
Philippines. 
EXpANSE: @, 9, 1'2 to 1°8 inches. 
4 
Wet-season form. 
DESCRIPTION: “MALE. Uppersipr, both wings pale azure with a silvery somewhat 
lactescent gloss. Forewing with a narrow blackish-brown posterior [outer] margin. Aind 
wing with a broader border of the same colour, consisting of three parallel strigze, one 
exterior narrow and continued ; the second intermediate, composed of a series of oblong 
spots more intensely coloured towards the anal angle; the third and interior one broad, 
waving and evanescent. [These three strigaee are very marked in some specimens, entirely 
absent, except the outermost one, in others from the same locality.] UNDzRsIDE, doth wings 
grayish-brown, and in well-preserved individuals the tint is deeper, anda rich silvery re- 
flexion is spread over it. Forewing with seven, hindwing with nine white strigz, three 
of which are marginal and agree with those of the two former species [Z. elianus, Fab- 
ricius, and Z, celerio, Fabricius.] Forewing with four white strige arranged in two pairs 
on the medial and submarginal portions of the wing; the strigze of the interior pair are 
continued, they arise, parallel to each other, at a small distance from the costa, pass in 
a somewhat angular curve across the disc, and come in contact with the interior margin 
near the inner one of the marginal strige : the next pair consists of interrupted short 
linear fragments, arises from the costa, having near its point of contact two or three 
small lateral dots, stretches half across the wing, and is terminated on the disc by a 
short lineola, disposed intermediately between the two or along the interior strigae The 
arrangement of these strige is permanent and affords clear characters for a specific dis. 
tinction. AHindwing marked between the base and the margin with six transverse strige, 
agreeing generally with those of Z. a/zanus and ZL. celerio, the only apparent difference is that they 
are somewhat broken and interrupted in their course. The anal ocelli are not in any degree 
different from those in Z, celerto. The ¢horax and anterior part of the abdomen are covered 
with a grayish or light blue and silvery down: the sides of the abdomen, and the antenne 
are annulated. Our collection contains one specimen of a variety on which a pure azure 
extends uniformly over the upperside. FEMALE. UPPERSIDE, doth wings have the azure 
tint [of the male] somewhat diluted. Forewing has a very broad dark brown posterior 
border, stretching obliquely to the middle of the costa. Andwing, the border has a 
blackish tint, and the oblong spots of the intermediate series are encircled with white.” 
UNDERSIDE, both wings like the male. (orsfield, |. c.) 
The above minute and excellent diagnosis was made by Dr. Horsfield from Javan 
specimens, and applies exactly to the species as it exists in India, but it may be noted with 
tegard to the males that the three parallel strigze on the upperside of the hindwing appear in 
some specimens only, in others are more or less absent, in others again quite obsolete, and that 
all forms occur in the same locality ; but whether this variability is due to seasonal causes or 
not I am unable to say. 
Dry-season form. 
DESCRIPTION: MALE and FEMALE. UPPERSIDE, doth wings with the blue colour paler. 
UNDERSIDE, doth wings differ in the ground-colour, which, instead of being “ grayish-brown, ” 
ilmost plumbeous, as in the wet-season form, is of a pale ferruginous colour which suffuses 
jl the white markings, imparting to them a blurred and indistinct appearance. This 
form probably occurs everywhere where there are two well-marked seasons, a dry and 
a wet; I possess specimens from Malda, Sikkim, Calcutta, Orissa, and several parts of 
Assam. Seeing how Z. e@lianus has been split up, and its local, varietal, and seasonal 
forms described as distinct species, I am surprised that the dry-season form of ZL. e/fis, 
which is quite as distinct as many named forms of Z. @lianus, has so far remained 
undescribed. 
