428 LYCANID. BIDUANDA. 
wings grey and white, marked by several brown spots and black lines. Forewing with a large 
brown spot beyond the middle [on the costa], the outer margin rufous-brown. Hindwing 
with a caudal black spot, crowned with gold.” (Hewitson, 1. c.) 
Mr. Hewitson does not attempt to describe in detail the numerous markings which cover 
the entire surface of both wings on the underside, most of which are in outline only, nor does 
he state the sex of the type specimen, which appears to me to be almost certainly a female. 
{t should not be easily mistaken for any other species; the markings of the underside, 
combined with three tails to the hindwing and a discal orange patch on the upperside of the 
forewing, rendering it quite unique. I have not seen a specimen. 
ITappend a description of the Azyr7na sceva of Hewitson, described from Singapore, 
but not included by Mr. Distant in his work on the butterflies of the Malay Peninsula.* 
973. Biduanda nicévillei, Doherty. 
B. nicévillei, Doherty, Journ. A. S. B., vol. lviii, pt. 2, p. (1889). 
HABITAT : Myitta, Tenasserim Valley, Burma. 
EXPANSE: 2, I'2 inches. 
DESCRIPTION: “ MALE. UPPERSIDE, 40th wings violet, (much richer and bluer than 
in B. thesmia, Hewitson), slightly paler in the middle of the forewing ; a narrow, even, black 
border. Aindwing with two subanal black spots bordered inwardly by an area irrorated 
with whitish scales ; a marginal black and white line subanally ; the cz/za partly white, as 
well as most of the ¢az/s.5 UNDERSIDE, both wings, much like &. melisa, Hewitson, the 
markings more rufous, less fuscous, the basal spots simple, not annular. Forew7ng with the 
transverse discal band and the outer margin rufous-brown and ferruginous of various shades. 
Hindwing with the apical part of the outer margin light ferruginous, the metallic green anal 
area large, extending unbroken from the third median nervule to the internal nervure, the 
submarginal line straighter, and less undulated on both wings.” (Doherty, 1. c.) 
Mr. Doherty obtained two males of this very distinct species at Myitta, Tenasserim 
Valley, in the cold weather. The rich purple upperside, with an even outer black border 
about one-sixteenth of an inch in breadth, will easily distinguish this from all the known 
species of the genus. 
I append a description of B. cimesoides, mihi, which occurs in the Malay Peninsula.t 
It has a distinct “‘ male-mark ” on the upperside ot the forewing on the disc. 
* Biduanda sceva, Hewitson. Myrina sceva, Hewitson, Ill. Diurn. Lep., p. 30, n. 11, pl. xv, figs. 39, 
40. male (1863). Hasirar: Singapore. EXpANSE: Male, 1°05 inches. DESCR IPTION : ‘Mate. UpPERsIDE, doth 
wings dark brown, forewing witha medial spot of blue dots. Hindwing cerulean silvery blue ; the base, 
the costal margin, and the outer margin from the apex tothe middle, dark brown; two caudal spots and the 
three fails black; a submarginal line and the cz/éa white. UNDERSIDE, both wings white. Forewing witha 
triangular spot on the costal margin, the apex, and outer margin, rufous-brown ; the base, two large spots in and 
below the cell, the end of the cell, several spots on the costal margin, a broken macular band beyond 
the middle, and a submarginal line, all black. //indwing with several spots, short lines in pairs, a submarginal 
line, and the outer margin, black ; the caudal black spots crowned with silvery blue.” (/7ezwitson, lcs) 
This species appears to have the markings on the underside so characteristic of B. medisa and B. cyara, 
Hewitson. Ihe male may be distinguished from that sex of B. elisa by the presence of the small irrorated blue 
spot on the upperside of the forewing. All the markings on the underside of B. sceva appear to be better de- 
fined, and of a darker and richer brown than in B, elisa, I have not seen a specimen. 
t Biduanda cinesoides, de Nicéville, Journ. Bombay Nat. Hist. Soc., vol. iv, p. 166, n. 5, pl. A, fig. 7, male 
(1889). Hasirar : Selangure, Malay Peninsula, Expanse: Ja/e, 1°6 inches. DescripTION: MALE. UPPERSIDE, 
both wings violet-blue. Forewing with a marginal narrow black line ; a large round black glandular patch 
of modified scales beyond theend of the cell, extending slightly into it, anteriorly bounded by the upper 
discoidal nervule, posteriorly by the second median nervule. Hindwing with an oblique black band extending 
from the base of the short outermost tail to the abdominal margin above the anal notch, beyond which the outer 
margin is white, bearing a very fine black line ; the tails white, black at their bases ; a very large intensely 
black elongated patch of modified glandular scales below the costa. Czdia of the forewing blackish, of the 
hindwing anteriorly blackish, posteriorly white. UNDERSIDE, forewing orange-rufous, the inner margin broadly 
pale and highly polished. AWindwing with the anterior half orange-rufous, gradually merging into the 
white area of the posterior half of the wing ; an oblique zigzag narrow black band extending from the middle 
of the abdominal margin tonear the end of the second subcostal nervule, where the band is much attenuated 
and turned upwards parallel with the outer margin ; beyond this narrow band is another still narrower and 
more zigzag band enclosing a ferruginous line, with a band of metallic amethystine-violet placed outwardly 
against it, the inner portion of the latter above the anal notch enclosed by a short black line centred with ferrugi- 
nous ; a black spot on the anal lobe, and another larger one in the first median interspace just within the 
margin ; a fine marginal black line; tails as above.”’ ; 
