196 THE PROCEEDINGS OF THE LTNNEAN SOCIETY 



shortly triangular. Forewings subtriangular, in (^ with a 

 transparent spot at base of median cell, hindmargin with black 

 spots united by metallic-gold ; hindwings with basal pecten. 



Of the four species hereafter described, the first two hardly 

 fall well into the genus, owing to their longer palpi, yet they 

 possess the general characters ; the others agree with Eromene in 

 all respects. They may be tabulated thus : — 



A. — Forewings with broad silvery- white markings 2. bifraetella. 



B. — ,, without distinct silvery-white markings 



1. — Forewings with a central oblique fascia. 1. longipalpella. 



2. — „ with two slender transverse lines. 



a. — Labial palpi hardly longer than head 3. praematurella, 



b' — ,, ,, nearly twice as long as head ... 4:. dilatella. 



Er. longipalpella n. sp. 

 10" — 11". Head whitish. Labial palpi twice as long as head, 

 whitish, mixed with dark fuscous scales, dark fuscous on sides ; 

 maxillary palpi white. Antennse whitish-ochreous. Thorax and 

 abdomen ochreous. Legs ochreous-grey, tarsi with ochreous- 

 white rings at apex of joints. Forewings elongate, rather dilated, 

 costa straight, hindmargin subdentate, slightly rounded ; ochre- 

 ous, suffused with white, especially on disc, which is almost en- 

 tirely white and rather thickly irregularly sprinkled with fine 

 black scales, especially towards posterior part of disc, sometimes 

 coalescing in parts to form irregular blackish spots ; towards base 

 the white colour forms a distinct median streak from base, which 

 shortly becomes dilated and suffused into the ground colour ; a 

 transverse central fascia of the ochreous ground colour, sprinkled 

 with whitish and blackish scales, gently angulated above and 

 below middle, bisected throughout by a violet-silvery metallic line, 

 indistinct on margins ; at two-thirds of disc, nearest to costa, is a 

 crescentic violet-silvery metallic mark, strongly margined with 

 black internally and less strongly externally ; behind this are 

 four irregular elongate spots of black scales ; a silvery-metallic 

 outwardly-curved subterminal line, indistinctly margined inter- 

 nally with blackish ; costa before apex blackish ; a small white 

 spot on hindmargin in middle, a faint one below apex, and a 

 clear double one above anal angle ; hindmargin with seven black 



