24 LYCAINID#:. GERKYDUS. 
nervule and the middle of the interno-median interspace) being dehiscent outwardly along 
the line of the first median nervule. Aindwing slightly angled in the middle. UNDERSIDE, 
both wings paler, less reddish and more variegated than in the male, and the markings very 
irregular. 
Two males andafemale from the Tenasserim valley, Tavoy district, were obtained by 
Mr. Doherty, the type pair of which I have examined. The species appears to be a very 
distinct one. 
619. Gerydus biggsii, Distant. 
G. biggsii, Distant, Rhop, Malay., p. 206, n. 2, pl. xxii, fig. 12, female (1884). 
HWasiratT: Burma, Malacca. 
EXPANSE: 9, II to 1'4 inches. 
DESCRIPTION : “FEMALE. UPPERSIDE, forewing brown, about crossed near the middle 
by an oblique white fascia, beyond which the brown colour is much darker and almost black. 
Hindwing wiiform brown, with the cilia paler. UNDERSIDE, both wings pale brownish, 
with spots and fasciee margined with grey, arranged similarly to those of G. symethus, Cramer, 
Forewing with the white fascia as above. MALE, resembling the female. UPPERSIDE, 
forewing with the white fascia a little narrower. Hindwing more convex and less outwardly 
angulated.” (Distant, l.c.) 
I have received a single female of this species from Lieutenant E. Y. Watson, collected by 
him at Beeling, Upper Burma, in May. Mr. Doherty obtained it in the Tenasserim valley. 
Another species, probably of this genus, has been described as below from Siam.* 
620. Gerydus boisduvali, Moore. (PLare XXVI, Fic. 155 $). 
Miletus boisduvali, Moore, Horsfield and Moore, Cat. Lep. Mus. E. I. C., p. 19, n. 2, pl. ra, fig. 1, female 
(1857); id., Moore, Proc. Zool. Soc., Lond., 1865, P- 7773 Miletus boisduvaliz, Snellen, Tijd. voor Ent., 
vol. xix, p. 152, n. 38 (1876); id., Elwes, Trans. Ent. Soc. Lond., 1888, p. 374, n. 235. 
Hasitat: Sikkim ; Chittagong Hill Tracts ; Mergui; Tenasserim Valley; Java. 
EXPANSE: 1'33 to 1°60 inches. 
DESCRIPTION : FEMALE. ‘ UPPERSIDE, doth wings brown. Forewing with a whitish fascia 
running from near the middle of the anterior margin to near the anal angle. Hindwing 
slightly angulated. UNDERSIDE, 0th wings pale brown. Forewing with the fascia as on the 
upperside intersected by the veins, and with three spots in the discoidal cell, one on each 
of the three anterior subcostal nervules ; also an undulated spot near the anterior angle, anda 
small blackish dot between each nervule near the exterior margin. Hindwing also marked 
with undulated spots and stripes, and with a dot between each nervule. Form of wings as in 
M. [=Gerydus] symethus, Cramer, female.” ( Afoore, 1. c.) MALrE. Differs from the female in 
having the pale markings of the UPPERSIDE of the forewing smaller, though these are very 
variable, being sometimes almost as large as in the female, at others almost obsolete ; 
the wing is also longer, the apex acuminate, and the outer margin less convex; the hindwing 
rounded, not angulated, at the terminiation of the third median nervule. In addition to the 
markings described by Mr. Moore, there is a submarginal catenulated band on the underside 
of the forewing, and an oblique blackish straight macular band from the middle of the 
abdominal margin of the hindwing to the middle of the disc in some specimens of both 
sexes. It occurs rather commonly in Sikkim at low elevations in March, April, May, July, 
August, ant October. Dr. Anderson took it in Mergui in March, 
The figure shows both sides of a male specimen from Sikkim in my collection. 
* Gerydus (Miletus) irroratus, Druce, Proc. Zool. Soc. Lond., 1874, Pp. 106. Hanitrat: Nahconchaisee, 
Siam. Expanse: Not given. DescripTion: “ Uppersip2, both wings dark glossy brown, with a whitish 
spot at the end of the cell of forewing. UNDERSIDE, oth wings very like MW. melanion, Felder [from Luzon, 
one of the Phillippine Isles], but differs trom it in having the light markings less clearly defined, and the white 
lines more indistinct.” (Druce, l.c.) 
G. melanion has two spots on the upperside of the forewing in the male, one covering the base of the third 
median nervule, the other in the submedian interspace towards the anal angle. As G. irroratus is said to have 
only one spot, it may perhaps be recognised, but the description of it is most inadequate. 
