Genera and Species of Pyralide. 437 
Acharana elongalis, sp. n. 
Fore wings fuscous, with a purplish tinge, rather glossy. 
Hind wings darker ; all the lines very indistinct ; a distinct 
black discal spot in each wing, which in the fore wing is pre- 
ceded by a smaller more obscure one; fringes glossy, con- 
colorous. Head and thorax dark fuscous; abdomen paler, 
somewhat ochreous. 
Expanse of wings 28 millim. 
One male from Formosa. 
The species may be distinguished at once by the elongated 
fore wings, so much narrower than the rest of the group. In 
this respect it resembles Stenomeles agavealis, Wlk., but the 
hind wings are broad and well rounded. 
Acharana fuscescens, sp. N. 
Like A. rudis, Warr., but larger; dark fuscous cinereous, 
generally slightly paler beyond the lines; abdomen dark 
fuscous. ' 
Expanse of wings 28 millim. 
Three examples from Japan. 
STENOMELES, gen. nov. 
Fore wings elongate, narrow, quite four times as long as 
wide ; costa straight, very gradually convex before apex; 
hind margin very oblique. Hind wings triangular, twice as 
long as broad, with the hind margin nearly straight from inner 
to anal angle. Palpi as in Acharana ; antennz long, in the 
male pubescent; collar and patagia clothed with coarse loose 
scales; abdomen in both sexes long, reaching beyond the 
hind wings. 
Type 8. agavealis (Botys), Wik. xviii. p. 575. 
PRIONOPALTIS, gen. nov. 
Fore wings broadish ; costa convex before apex; hind 
margin faintly sinuous, being slightly incurved below apex 
and elbowed above the anal angle; scaling fine, glossy. 
Labial palpi broad, porrect, as in Acharana; maxillary erect, 
behind the labial, rather broad at apex; tongue present ; 
ocelli large ; antenne: with angular joints, which in the male 
project like the teeth of a saw. 
Type P. sericea, Warr. 
