1899.] 201 



DESCRIPTION OF A BRITISH COLEOPEORA NEW TO SCIENCE. 

 BY THE RT. HON. LORD WALSINGHAM, M.A., LL.D., F.R.S., &c. 



COLEOPHORA TRICOLOR, Sp. n. 



Of the size and general aspect of lixella, Z., but easily dis- 

 tinguishable by the brown clothing of the basal third of the antennae, 

 and the distinct brownish-grey annulation of the joints beyond this 

 to the apex. 



Antennce with a moderately long basal tuft, pale brownish (or white slightly 

 tinged with brown), a mat of brownish scales extending along the upper side from 

 the base to a little beyond one-third, beneath which the joints beyond the basal tuft 

 are very distinctly banded with greyish-brown, the remaining joints beyond the brown 

 clothing being distinctly annulate to the apex with alternate rings of white and 

 brownish-grey, with the exception of a slender white line on the upper-side near the 

 apex. Palpi slightly tufted beneath ; fawn-brownish, with some whitish scales on 

 the terminal joint (sometimes whitish with a slight brownish tinge). Head and face 

 whitish. Thorax whitish, the tegulse tinged with yellow. Fore-wings sulphur- 

 yellow, with the same mai-kings as in lixella, viz., four silvery streaks near the costa, 

 two at the termen, one on the disc, one along the fold, and another faintly indicated 

 along the base of the dorsum — with the exception of the latter, all are outlined by 

 a narrow margin of brown scales, sometimes evanescent on the lower edge of the 

 discal and plical streaks, the spaces between the costal streaks and about the apex 

 being partially filled in with similar brown scales ; the costal cilia brownish-grey 

 tipped with whitish, the terminal and dorsal cilia brownish-grey with a few whitish 

 scales along their base. ISxp. al., 18 — 19 mm. Hind-winffs brown-grey ; cilia 

 brownish. Abdomen brownish-grey, with some whitish scales ; anal tuft dirty 

 yellowish-white. Legs brownish-grey, hind tibise slightly paler than the tarsi. 



Hab. : Norfolk. Merton, 1. VIII. 1891, 24-27.VII.1899. 



Type, (^ ? , Mus. Wlsm. 



This species differs not only from lixella, Z., but also from ornati- 

 pennella, Hb., and caucasica, Stn. (^= ornatipennella + turensis, Stgr., 

 List MS.), the only known species with which it could be confused, in 

 the brownish tinge of the basal tuft of the antennae, in the distinctly 

 brown hair-clothing of the basal third of, the antennae, and in the 

 complete annulation of the joints beyond it, whereas in lixella they 

 are spotted on the under-side, but never annulate. In the fore-wings 

 the silvery discal streak appears to be somewhat more abruptly termi- 

 nated, not tapering to a point as is usual in the other species ; it has 

 also a tendency to be rather wider. The markings are somewhat 

 variable as in those of its near allies, one or more of the subcostal 

 streaks sometimes failing, but the antennae at once enable one to 

 recognise it. The $ is slightly smaller than the (^ . 



