Genera and Species of Pyralide. 295 
outward curve in the middle, and is followed by a broadish 
yellow fascia, the outer edge of which is likewise serrated ; 
beyond this the whole hind margin is densely reddish fus- 
cous; fringe dark cinereous. Hind wing yellow, with 
greyish-iuscous margin and an indistinctly expressed central 
shade. Head, palpi, and thorax reddish; legs white ; abdo- 
men yellow. Underside dull yellowish grey. 
Expanse of wings 24 millim. 
One male from Japan. 
Opsipotys, Warr. 
Opsibotys, Warr. Ann. & Mag. Nat. Hist. 1890 (ii.), p. 474. 
Opsibotys latipennis, sp. n. 
Fore wings pale straw-colour, with the markings yellowish, 
viz. the costa, the two stigmata, and the two lines, the first 
of which is very indistinct and the second denticulated; a 
faint undulating submarginal line. Hind wings with a central 
spot, a curved central fascia, and a faint submarginal one 
yellowish. In the male the yellowish parts are tinted also 
with grey. Thorax and abdomen straw-colour; head and 
collar yellowish. Underside dirty ochreous, with all the 
markings very faint. 
Eixpanse of wings 30 millim. 
One female, one male, from Japan. 
The species reminds one of a Micractis, but the male is 
without the characteristic marking of that genus. Both 
wings are rather broad, 
Opsibotys ocellalis, sp. n. 
Fore wing fuscous-brown, elongate; first line invisible, 
second strongly serrated, the serrations thrown up by a 
slightly paler shade beyond it; a conspicuous pale yellowish- 
white spot at end of cell; fringes concolorous. Hind wing 
with second line repeated; fringes with pale apices, 
Expanse of wings 36 millim. 
One male from Japan. 
Related to the American species mustelinalis and fumo- 
feralis. 
SERICOPLAGA, gen. nov. 
Like Opsibotys in structure, but distinguished by the shape 
of the fore wings, of which the apex is produced and pointed 
