Genera and Species of Pyralide. 433 
Autocosmia concinna, sp. n. 
Fore wing sienna-brown, with the costa to beyond middle 
broadly smooth chestnut, which colour also reaches the inner 
margin at the base; the edges of the two stigmata, the 
median nervure, the second and third median nervules as far 
as the second line, the submedian, with an oblique streak 
running into it from the median below the orbicular stigma, 
the interno-median vein, the sinuous second line, a line before 
the dark base ot the fringe, and one on each side of the head, 
all delicately and concisely snow-white ; fringes themselves 
brown-grey, with darker central line; between the middle of 
the second line and the white hind marginal line is a small 
undefined greyish-white patch. Hind wings brownish 
fuscous, without markings. Underside the same, with the 
second line showing white in both wings. Abdomen fuscous ; 
head, thorax, and outside of labial palpi chestnut-brown ; 
legs and underside of abdomen whitish. 
Exxpanse of wings 15 millim. 
CoSsMOCREON, gen. nov. 
Fore wings elongate, narrow at base, widening considerably 
towards hind margin ; costa straight, convex only just before 
apex, which is blunt; hind margin simply curved; inner 
margin bulging slightly near the base. Hind wings rounded, 
twice as broad as tore wings. Labial palpi porrect, rostri- 
form, rather roughly scaled; maxillary small, nearly upright, 
broad at apex; tongue long; ocelli present ; antenne pubes- 
cent in male; forehead with a rounded protuberance; thorax 
and abdomen rather stout. 
Type B. albiceralis, Grote, Bull. U.S. Geol. Surv. iv. 
p- 678: 
The genus will also include B. allectalis, Grote. 
Egercestis, Hib. 
Type £. extimalis, Scop. (EL. margaritalis, Hiib. Verz. 
p. 354). 
Euergestis consimilis, sp. n. 
Closely allied to #. extimalis, but distinguished by the 
much darker tint of the marginal blotch and fringes and by 
the outer line itself, which, instead of being composed of 
separate dots, forms a distinct and, near the costa, serrated 
line. 
One specimen, from the Grote Collection. 
Ann. & Mag. N. Hist. Ser. 6. Vol. ix. 33 
