SCALY WINGED COPEOGNATHA. 87 
Ground scales (fig. 48 gs) shorter and longer elliptical; cover 
scales (ds) fusiform, marginal scales (vrs) usually very narrow. 
Length of fore wing 2°4 mm., wing expanse 5} mm. 
Ceylon, Peradeniya. On walls and ceilings of houses. January, 
1905, fourteen specimens and twelve examples in alcohol; March, 
1905, one specimen ; collected by Mr. E. E. Green. 
Perientomum gregarium, Hag., 1865. 
Amphientomum ceylonicum, Nietner, im litt. 
A. gregarium, Hagen, Ent. Mo. Mag., II., 1865, p. 149. 
Perientomum gregarium, Hagen, Verh. Zool. Bot. Ges. Wien., 1866, 
pp. 204 and 210. 
P. gregarium, Hag., Enderlein, Ann. Mus. Nat. Hung. I., 1903, 
p. 321. 
Ceylon, Hagen, l.c. p. 149: 
‘‘ Head reddish yellow, near the eyes, and on each side of the 
occipital suture darker, brownish ; ocelli close together, the superior 
placed in a black point ; palpi pale yellow, the two apical joints 
brown ; antennz shorter than the wings, blackish brown ; the bases 
as far as the fourth joint, paler ; thorax blackish brown ; superior 
wings clothed with black scales, intermingled with silvery and 
golden ; paler spots near the apex, two quadrangular silvery spots 
on the anterior margin near the apex, one spot opposite on the pos- 
terior margin ; legs pale yellow, the tibize at the knees and before 
the apex, as also the basal half of the first tarsal joint and the two 
following, black. 
Long. 23-3} mm., exp. alar. 53-7 mm. 
Ceylon. Rambodde (Nietner). This species is found in troops 
of forty to fifty on the walls of houses. In two smaller individuals, 
probably males, the part between the eyes (which are more ,pro- 
minent) is narrower.” 
Perientomum Greeni, n. sp. (Figs. 10, 51-53, 71). 
Head black ; moderately long and compact hair on forehead and 
vertex ; the hair is curved upwards above and downwards below ; 
its colour is black-brown, with individual yellow-brown hairs. Eyes 
large, black, with very short, fine, and close pubescence. Antenne 
thin, about one-half the length of the fore wing, black, pubescence 
relatively sparse and short. Maxillary palp black. 
Thorax black, mesonotum behind and at the sides with golden 
scales. Legs brown-black, apices of the femora and tibie brown- 
yellow. Scales of femora and tibie gray yellowish with silken gloss, 
N 10(4)06 
