NEW BRITISH SPECIES, ETC., IN 1870. 51 



Wood; and I have long had specimens in my collection 

 taken Mr. Crotch at Down, near Beckenham. 



Compared with its ally, T. aim, this insect is more 

 hairy, broader, with the thorax more shining behind, being 

 punctured instead of granulated, and having an obsolete 

 transverse depression behind the middle, and with its elytra 

 much more retuse at the apex. 



Qo. ToMicus (Drycecetes) alni, Georg, Stettin. Ent. 

 Zeit., 1856, p. 59; D. Sharp, L c, vol. vi, p. 256. 

 Marshamiy Rye. 



A specimen of the insect named 3Iars1iami and supposed 

 by me to have been Marsham's fuscus, and distinct from 

 Gyllenhal's species of that name (which is identified with 

 hicolor, Herbst), has been sent by Mr. Crotch to Herr 

 EichhofF, who considers it must be referred to Georg's prior 

 alni. The different trees (alder and beech) in which the 

 two insects were found, and the obscure nature of Georg's 

 description and Ratzeburg's postscript thereto, prevented me 

 from identifying my insect with T. alni, the correct affinities 

 of which do not seem until quite recently to have been ap- 

 preciated on the continent. 



Mulsant's alni, published in the same year as Georg's 

 species, sinks as a synonym of Saxesenii, Ratz.; otherwise 

 3Iarshami might possibly still have stood. 



6Q. Trichopteryx (Acratrichis) punctatissima, Mot- 

 schulsky. Bull. Soc. Imp. Nat. Mosc, 1868, No. 3, 

 p. 178 ; E. C. Rye, I. c, vol. vii, p. 59. 



Ascribed to England only, and stated to be very close to 

 T. grandicolUs in form and colour, but shorter, with the 

 posterior angles of the thorax less projecting, the antennse 



e2 



