32 LYCENIDA.  LOGANIA. 
convex to the inner angle, the inner margin is véry slightly sinuous ; the costal nervure hardly 
reaches opposite to the apex of the discoidal cell, well-separated from the first subcostal 
nervule, which latter is well-separated from the second subcostal, the base of the second 
subcostal is nearer to the base of the first than to the base of the upper discoidal, the third 
subcostal nervule is rather long, and is given off from the subcostal nervure rather nearer 
to the apex of the wing than of the cell; terminal portion of subcostal nervure reaching the 
costa almost at, or very shortly before, the apex of the wing; upper discoidal nervule given off 
from the subcostal nervure far beyond the apex of the cell ; middle disco-cellular nervule straight, 
strongly inwardly oblique; lower disco-cellular longer, concave, upright; second median 
nervule given off rather close to the lower end of the cell; submedian nervure lying close 
to the inner margin, following its outline. Hindwing much elongated, costa very straight, 
apex and outer margin rounded, the latter posteriorly scalloped; costal nervure unusually 
Straight, but little bowed at the base; first subcostal nervule given off very near to the apex 
of the cell; upper disco-cellular nervule short, slightly inwardly oblique, straight; lower 
disco-cellular longer than the upper, upright, very concave ; second median nervule given 
off immediately before the lower end of the cell; submedian nervure straight; internal 
nervure extremely short, nearly straight. I am indebted to Mr. W. Doherty for a pair of the 
type species, Z. ma/ayica, Distant, from S.-E. Borneo. The wings of the male specimen I have 
bleached, and describe its neuration as above. 
Six species are at present known, two occurring in Borneo, two in the Malay Peninsula, 
two in the Mergui Archipelago, and one from Nias Island. They are all small butterflies, 
expanding about an inch, are dull-coloured or white on the upperside ; four species have large 
patches of pale purple one on each wing, another species is white, with the outer margin of the 
forewing on the upperside broadly brown. They are all irregularly marbled and variegated on 
the underside. 
Key to the Indian species of Logania. 
A. Of large size, the pale violet-whitish patch of the forewing on the upperside anteriorly bounded by the 
median nervure ; forewing with two subcostal nervules. 
628. L. ANDERSONII, Mergui. 
B. Of smaller size, the pale violet-whitish patch of the forewing on the upperside anteriorly extending 
beyond the median nervure ; forewing with three subcostal nervules, 
629. LL. MARMORATA, Mergui. 
628. Logania andersonii, Moore. 
LZ. andersonii, Moore, Journ. A. S. B., vol. liii, pt. 2, p. 22 (1884); idem, id., Journ. Linn, Soc., Zoology, 
vol, xxi, p. 39, pl. iii, fig. 6, female (1886). 
HABITAT: Mergui. 
EXPANSE: 9, I'r inch. 
DESCRIPTION : ‘*FEMALE. UPPERSIDE, oth wings pale violet-brown. Cilia alternated 
with white, Forewing witha broad longitudinal medial lilacine-grey band of a somewhat 
triangular form, disposed below the cell, the exterior border of the band being scalloped. 
Hindwing with a narrow medial discal similar-coloured band. UNDERSIDE, doth wings pur- 
plish lilacine-white, with a blackish zigzag cell-streak, a transverse discal zigzag duplex line, 
and two narrow similar submarginal lines, a slender marginal line, and a waved interciliary 
line.” (AZoore, 1. c. in Journ. A. S. B.) 
In describing this species, Mr. Moore does not refer to the Hyfolycena libna of Hewitson, 
described from Borneo,* to which it is obviously allied, ifnot indeed identical. Z. libna is 
described as having a small pale blue spot near the costal margin of the forewing on the upper- 
side, which appears also to be present in Z. andersonii, though not mentioned by Mr. Moore, 
The only difference I can detect is that the pale blue band on the upperside of the hindwing, as 
figured in Z, /ibna, is larger than in Z. andersonit, but, Hewitson’s type having been a mutilated 
specimen, this feature may have been incorrectly drawn. The type and only known specimen 
* Ill, Diurn, Lep., Suppl., p. 15, n. 24, pl. v Suppl., figs., 39, 40, female (1869). 
