468 Mr. W. Warren on new 
spot; costal region before exterior line rather bright ferru- 
ginous; hind wings with the two lines distinct. 
Expanse of wings 24 millim. 
One male from Japan. 
Endotricha acrobasalis, Snell. (Tijd. v, Ent. xxxv. 1892, 
p. 155, pl. x. fig. 1), evidently belongs to this genus, and 
may be the same species, but it is not represented as being 
rosy. 
PERISSERETMA, gen. nov. 
Fore wings triangular, costa hardly convex; apex blunt; 
hind margin oblique; anal angle well marked. Hind wings 
triangular, with both angles well-marked, and the hind margin 
nearly straight. Antenne of male with long and very fine 
ciliations; maxillary palpi weak, laxly scaled, upceurved in 
front of face; labial palpi of abnormal length, twice as long 
as maxillary, curved horizontally in front of face, like the 
mandibles of a beetle, with long lax hairs on the inner side ; 
tongue well-developed; patagia of male nearly as long as 
abdomen; hind tibias with four spurs. Neuration: fore 
wings, cell two fifths of wing; first median nervule at four 
fifths, second from lower angle of cell, third and lower radial 
on a common stem; upper radial from upper angle of cell ; 
last three subcostals on common stem from just before the 
angle, first and second free: hind wings, medians as in fore 
wings; costal and first subcostal united; second subcostal 
from upper angle of cell; discocellular angulated, the lower 
arm oblique. 
Type Perisseretma endotrichalis. 
I am inclined to believe that the position of the labial palpi, 
as above described, in the single example examined is not the 
natural one. It is more probable that in the natural condition 
they are upcurved in front of face, asin the genus Endo- 
trichopsts, to the labial palpi of which genus they bear a 
strong resemblance. 
Perisseretma endotrichalis, sp. n. 
Fore wings dull vinous, dusted and in part suffused with 
dark grey ; basal area indistinctly darker, edged by an oblique 
streak of undusted ground-colour from costa near middle to 
inner margin at one fourth ; second line also of clear ground- 
colour from costa at two thirds to middle of inner margin, 
slightly elbowed in the middle; discal spot large, black ; 
space between the two lines from median to submedian 
occupied by an oblique subquadrate black blotch; a diffuse 
