1905. I 37 



SILVANUS MERCATOR, Fattvel, A SPECIES OF COLEOPTERA 

 NEW TO BRITAIN. 



BY J. R. LE B. TOMLTN, M.A., P.E.S. 



In the Ent. Mo. Mag., 1896, p. 261, Mr. Champion predicts the 

 eventual discovery of Silvanus mercator, Fauv., in Britain. Ho has 

 recently identified some specimens which T received from Mr. E. A. 

 Atmore as this species. It may easily be recognised from 8. surina- 

 mejisis, L., by the small size of the temples, which are two-thirds of 

 the diameter of the eyes in the latter species, whereas they are only 

 one-fifth in 8. mercator. 



A dichotomous table of the genus will be found in the article 

 cited above. My specimens were found in a bakery at King's Lynn, 

 Norfolk. 



Chester : January, 1905. 



ALGERIAN MICROLEPIDO PTBRA. 

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

 {Continued from Vol. XL, p. 273). 



3040 : 1. — Stmmoca ponebias, sp. n. 



Antennae brownish fuscous. Palpi white, the median joint suffused with 

 brownish fuscous externally nearly to its apex. Head hoary wliite. Thorax pale 

 creamy ochreous. Forewings pale creamy ochreous, sprinkled sparsely with rust- 

 brown scales, with three groups of brownish fuscous scales along the costa and one 

 before the apex ; the first costal spot is at the base, with a rust-brown dot at its 

 lower edge ; the second at one-third, rather triai'gular, with a small rust-brown spot 

 at its apex ; the third at two-thirds, a little beyond a rust-brown transverse streak 

 at the end of the cell, below which is another rust-brown spot on the dorsum, a 

 smaller one lying just below the middle of the fold ; the base of the pale ochreous 

 cilia is also dusted with rust-brown beyond the apical fuscous spot. Exp. al., 

 12 — 13 mm. Hindioings cilia and Abdomen rather dark grey. Legs whitish 

 ochreous. 



%>«. (? (96348). Mus. Wlsm. 



Hab.: ALGERIA — ITammam-es-Salahin, L8.IV- 17.V.1908. 

 Three specimens taken on the hills above Hammam-es-Salahin in early 

 morning. 



Closely allied to tofosella, Ebl., but distinguished by its white 

 head, its more rusty coloured forewings and less conspicuous spots. 



3043 : 1. — Symmoca calidella, sp. n. 

 Antennae pale yellowish ochreous. Palpi dull white, smeared externally, 

 nearly to the apex of the median and on the terminal joint, with pale brownish 



