LYCANID&. NACADUBA. 149 
with the exterior and posterior margins dark blackish-brown. Zindwing along the posterior 
margin marked with a series of oblong brown spots, enclosed by two undulated white 
threads, the interior one being bounded by a deep brown fascia, and the exterior one by a 
blackish margin fringed with grayish-brown. UNDERSIDE, oth wings brown, with a shade of 
silvery gray ; with three white marginal strige extending uniformly through both wings. 
forewing with six white strigze following each other, after nearly equal intervals, from a small 
vacancy at the base to the marginal series ; they do not arise in contact with the costa, but a 
small intervening space is occupied by four marginal dots, in irregular succession, of which the 
two posterior ones are most distinct ; the first three interior strigze are parallel and nearly 
regularly transverse ; the fourth is very short ; the fifth extends across the surface with a slight 
obliquity inwards ; the sixth terminates inthe middle of the surface. Aindwing with seven 
transverse strigee occupying the whole surface to the marginal series; the basal one is short 
and obscure, the remaining are broken, and a short lineola is placed, in some cases, inter- 
mediately between the successive strigze ; they have a very slight curve towards the anterior 
margin : there are three anal ocelli, agreeing in character with those of Z. [= W.] pavana, 
Horsfield [from Java]; one exterior, near the margin large and regularly orbicular ; the next 
reniform, with a more saturated tint at the lobe which touches the interior ocellus situated at 
the extreme anal angle, and more pronounced than in the allied species [V. favana] ; the two 
anterior ocelli are connected by a short streak of silvery irrorations covering their inner border 
and bounded by a short rufous fascia. Avtenne and abdomen obscurely banded with white, 
the thorax and éody are anteriorly covered with gray hair.” (orsfield, 1. c.) MALE. 
UPPERSIDE, both wings plumbeous-purple, with a narrow outer black margin, UNDERSIDE, 
both wings as in the female. 
“Closely allied to WV. prvomznens, Moore, but comparatively smaller in size. MALE. 
UPPERSIDE, oth wings of a uniformly darker grey-blue. UNDERSIDE, doth wings with the 
white bands more distinct, the marginal band encloses a series of black spots, and the sub- 
marginal band is more acutely sinuous with black interspaces. FEMALE. UPPERSIDE, both 
wings of a more intense and darker glistening blue, the brown outer borders broader,” 
UNDERSIDE, both wings asin the male. (JZoore, 1. c. in Lep. Cey.) 
Unfortunately Mr. Moore does not figure this species in his ‘‘ Lepidoptera of Ceylon.” 
From his description of it, it appears to have the white bands of the underside more distinct 
than in JV. promzinens, the marginal band enclosing a series of black spots, and the sub- 
marginal band more acutely sinuous with black interspaces. It is easy from these characters 
to pick out specimens of typical VV. afrata, but the matter is complicated to me by the posses- 
sion of one male from Ootacamund labelled by Mr. Moore M. urava (this species being 
a synonym of J. atrata as stated by Mr. Moore himself), another male from Bholahat and an- 
other from Sikkim, labelled 4. atvata, which agree in none of these characters with JV. atrata, 
being in fact typical V. Zromznens. Lastly, I possess a pair of specimens from Ceylon labelled 
by Mr. Moore 4. prominens which are really—following the above indicated characters— 
NV. atrata. Mr. Moore may have inadvertently reversed these species in naming these specimens, 
though the name Jromznens would seem to refer to a species with very prominent bands, but 
JV. atrata has them the more prominent of the two. 
Accepting, as I must do, his descriptions in preference to his ticketed specimens, I find that 
I have examples before me of 4. a¢rata from Bholahat in the Malda district, from Sikkim, 
Bhutan, Cachar, Ootacamund, Ceylon, and five male specimens from Singapore collected by 
Mr. W. Davison. This species is not included in Mr. Distant’s ‘* Rhopalocera Malayana.” 
726. Nacaduba prominens, Moore. 
Lampides prominens, Moore, Ann, and Mag. of Nat. Hist., fourth series, vol. XX, p. 341 (1877); Nacaduba 
brominens, id., Lep. Cey., vol. i, p. 88, pl. xxxvii, figs, 3, male ; 3a, 36, female ; 3c, larve and pupa (1881). 
HasiraT : Bholahat in the Malda district, Sikkim, Bhutan, Cachar, Cherrapunji, Shillong, 
Orissa, North Canara, Ootacamund, Shevaroy Hills, Ceylon, 
EXPANSE: 6, 9, I'2 to 1°4 inches, 
