448 LYCANIDA. DEUDORIX, 
Genus 169.—-DEUDORI, Hewitson, (PLATE XXIX). 
Deudorix (part), Hewitson, Ill. Diurn. Lep., p. 16 (1863) ; id., Moore, Lep. Cey., vol. i, p. 102 (1881) ; id. 
(part), Distant, Rhop. Malay., p. 277 (1885). 
‘* FOREWING, triangular ; afex acute, exterior margin oblique, almost even, anal angle 
acute, posterior margin straight ; costal mervure arched in the middle ; first subcostal nervule 
emitted at two-fifths, second subcostal at one-fifth, and ¢ird subcostal immediately before the 
end of the discoidal cell, fourth subcostal at one-half from below the third and terminating 
at the apex, i/tk subcostal [upper discoidal] from the end of the cell ; dzsco-cel/ular nervules 
concave, angled in the middle, /ower dzsco¢da/ nervule from their angle ; dzscotdal cell long, 
widest in the middle, second median nervule at one-sixth, and first median at two-fifths 
before the end of the cell; submedian nervure recurved. HINDWING, short, produced hind- 
wards, exterior margin uneven ; both sexes with a slender ¢az/ from the first median nervule ; 
anal angle lobed ; costal mervure much arched at the base; first subcostal nervule emitted 
at one-fourth before the end of the cell ; dzsco-ced/udar nervules oblique, slender ; dzscozdal 
nervule from their middle, déscozda/ celd short, broad at the end; second median nervule from 
very near the end of the cell, /s¢ median at one-third before the end ; sudmedian nervure 
straight, internal nervure recurved. Bopy robust ; Za/fz porrect, second joint projecting 
one-third beyond the head, attenuated at the apex, clothed with adpressed compact scales, third 
joint very slender, about one-fourth the length of the second in the male, longer in the female ; 
legs squamose, femora slightly pilose beneath ; anxéenne@ long, extending beyond half the wing, 
club evenly-formed. Type, D. efijarbas, Moore.” (JZoore, |. c.) 
ae ee 
Sithon chitra, Horsfield. Thecla chitra, Horsfield, Cat. Lep. E. I. C., p..97, n. 29, pl. i, fig. ‘emal. 
(1829); Myrina chitra, Butler, Trans. Linn. Soc. Lond., Zoology, second aos yal te ee rs iting 
‘Sithon chitra, Distant, Rhop. Malay., p. 254, n. 2, pl. xxiii, fig. 15, female (1885). Hasirat : Java (Horsfield) 
Malacca, Singapore (Butler), Jelebu. ExpaNnse: Female, 1°8 inches (Horsfield’s figure) ; 1°25 inches ( Distant) : 
x’40 inches (Distant’s figure). DescripTIon : FemaLe: “ Wings agreeing in form, longitudinal extent, and in 
the notch and anal appendage of the hindwing, with S. xedymond, Cramer. UPPERSIDE, doth wings dark brown 
with a very slight ferruginous lustre, being paler on the disc and more saturated at the borders. Hindwing has 
the anal region covered by a broad white patch, confined posteriorly by a delicate black marginal thread, and 
bearing two irregulariy-round black spots, the exterior one being dotted with white; the anal appendage bears 
a black dash, attenuated interiorly and marked laterally with a greenish-silvery line ; the extreme cz/ia of the 
hindwing and the ¢az/ throughout being white. UNDERSIDE, forewing fulvous paler at the base, with an obscure 
yellowish litura on the disc, behind this a curved brown striga, increasing in breadth and intensity of tint 
towards the interior margin, and finally a black marginal thread. Hindwing silvery-white, with a broad fulvous 
posterior border attenuated towards the anal region, and continued by a narrow striga passing irregularly 
flexuose to the inner margin ; with a very delicate linear yellowish transverse streakon the disc, a medial band 
of brown dots. more saturated near the costa, and continued at the inner boundary of the anal areola by a very 
deeo black broad regularly-transverse streak, tending to the inner margin. and accompanied, a little above its 
termination, by a solitary black dot ; the anal region is interiorly bounded bya series of diversified marks of 
an intense black colour, disposed in a simple curve ; it commences, near the outer apical angle, with an oblong 
black streak touching a wedge-shaped streak with a minute dash of green silvery irrorations at its inner extre- 
mity ; this is followed by two large irregularly-defined black spots, which also appear on the upperside, the 
exterior one being bordered at its inner margin by a crescent of silvery irrorations, the next divided into two 
portions by the passage of the fulvous striga, bearing near the middle two silvery lunules opposed to each 
other; the series is terminated bya black streak. extending in contact with the fulvous band along the oblique 
portion of the inner margin, being nearly concealed by a corresponding streak of silvery irrorations; the anal 
appendage is black, and surrounded by a lax Ciliated white czd/a which ts broader internally. Thorax and 
abdomen brown above and white underneath, the latter being banded at the sides. /ee¢ white annulated with 
black. Antenne also delicately annulated, and the club has a broad white ring at its base and a ferruginous tip.” 
** The resemblance in general habit. in the outline of the wings, and in the characteristic marks of the 
lower surface, between this species and S. nedymond, Cramer, is so striking. as to cause an inquiry, whether, 
notwithstanding the palpable ditierence in colour, they might be no more than different sexes of the same 
species. A careful examination has however convinced me that this is not the case. In..S. xedymond the upperside 
of the hindwing is without the least indication of the ocellate spots in the anal region ; in the underside the 
fascia, dividing the posterior portion of the forewing. has a different direction, and in the hindwing of the same 
species the dimidial portion has not any indication of a transverse discoidal striga, whereas S. chitra has 
a very distinct transverse line on the disc of the same wing. Our collection contains six specimens of S. chitra 
and seven of S. xedymond, which individually clo-e\y agree with the description givenof them.”’ (//orsfiedd, |. ¢.) 
** Dr. Horsfield’s eile evidently applies to a female specimen. and of the male sex I can find no 
account. It probably has a bluish gloss above, and is evidently allied to the preceding species. What is the 
female of S. xedymond? and what isthe male of S. chitra? There is certainly no great reason why the two 
species (?), as at present known, should not be classed as male and female S. xedymond. ‘he only reason 
why that course is not followed here, is owing to the fact, that the female S. chitra has a more curved upper 
tail than the male S. edymond, and the ground-colour beneath being somewhat diverse. When the insects are 
bred the above supposition may not improbably prove correct.’ (Distant, 1. c.) 
I have only seen one specimen of this species sent me by Mr. W. Davison from Jelebu. The difference 
in the coloration and markings on the underside between S. nedymond and S. chitrais certainly very great, 
and I do not know a parallel instance in the Lycenide, except to a less extent‘in the genus Bindahara, Moore ; 
t. I have but little doubt that the two are opposite sexes of one species. The 
notwithstanding this fact, ‘ ne 
markings and coloration of both sides of S. chitva are almost exactly the same as in Avaotes dapithis, Moores 
