92 SPOLIA ZEYLANICA. 
in the hind foot 0:4, 0°08,0°07 mm. The ratio of the hind tarsal 
joimts as 5:1: 7. First hind tarsal joint with about 16 ctenidio- 
bothria. Claws (fig. 70) slender, with an acute tooth before the 
apex ; empodial appendix setiform. 
Wing membrane hyaline. Fore wing with moderately broad 
pterostigma (fig. 62); mi almost discharges into the wing apex, 
only a trace before it. Scaling blackish brown (cover scales), the 
ground scales are more gray and somewhat shining. On both the 
anterior and posterior margins there are five moderately large 
roundish silver spots, upon which, besides the scales, long silvery 
fairly erect hairs are inserted, directed at a very steep angle towards 
the margin ; the innermost spot at the anterior margin lies at the 
end of the subcosta, the innermost at the posterior margin lies at 
the end of the analis ; the other spots lie between the ends of the 
veins. Marginal hair rather long, blackish brown. The narrow 
radial cel! (R) in the hind wing fairly broad ; 7, inserted somewhat 
near to m,; marginal hair long; membrane iridescent green to 
red. 
Ground scales (fig, 63 gs) fusiform, acuminate at the end ; cover 
scales (ds) long, with nearly parallel sides, only slightly attenuating 
towards the base, the end truncate with strongly rounded angles 
or shallowly concave likewise with rounded lateral angles: 
Length of fore wing 2°3 mm; wing expanse 54 mm. 
Ceylon. Peradeniya. March, 1905, under loose bark on stems of 
Artocarpus integrifolia ; two specimens, collected by Mr. E. E. Green, 
Perientomum ceylonicum, n. sp. (figs. 13, 45, 46). Perientomum 
triste, Hag. Enderlein. Ann. Mus. Nat. Hung. I., 1903. p. 325. 
Taf. XIII.; figs. 65-65 a. Text fig. 11. 
Head brown-black, beset with fairly compact and long brownish 
gray hairs. Qeciput compressed lamelliform, margin fairly sharp. 
Eyes gray-brown, closely and shortly hairy, little larger than in 
P. morosum, Hag. Antenne brown, short and thin, 21 joints 
(complete) ; with sparse, moderately long and setiform hairs, the 
separate joints moderately long, shorter towards the end, the last 
joint about three or four times as long as broad. Each joint shows, 
with strong microscopic magnification, a very fine pubescence dis- 
posed in close-set rings. Ocelli far distant from one another. 
Prothorax short but broad. Thorax and abdomen brown. 
Legs clear brown to brown. Femora thickly scaled as in P. morosum, 
Hag., and beset with fine long hairs. Tibiz, especially the hinder 
tibiz, thickly beset with narrower scales and with scattered, long, 
