NEW BRITISH SPECIES, ETC., IN 1864. 57 



agree well enough with the insect returned as probably 

 dehilis) ; but, on referring to Gyllenhal's original descrip- 

 tion of carhonarius (Ins. Suec. iv. 505, 13 — 14), I find 

 that species to be of the size, and almost of the oblong form, 

 of S. fuscipei^, its thorax being desci-ibed as oblong, much 

 longer than broad, with a fovea on each side. Erichson's 

 opacus, on the contrary (Gen. et Spec. Staph. 705, 28), is 

 described as of the build of latifrons, sub-depressed, with its 

 thorax not longer than its greatest M'idth, very little convex, 

 and with no foveas. 



21. Stenus nanus, Steph., 111. Mand. v. 301, 59, 1832 



{and Coll.) ; E. C. Rye, Ent. M. Mag. vol. i. p. 64. 

 declaratus, Er., 1839 ; Wat. Cat. 

 As Stephens' description is perfectly good (and is, more- 

 over, corroborated by the representative of the species in his 

 cabinet), there can be no doubt that Erichson's name must 

 be suppressed, being seven years later in date of publication. 



22. Stenus pumilio, Erichson; G. R. Crotch, Cat. Brit. 



Col. ; E. C. Rye, Ent. M. Mag. vol. i. p. 64. 

 Mr. Crotch has included this species in his Catalogue, on 

 the authority of Mr. Hogan's record in Zool. p. 4-340 (1854), 

 ^^ Stenus jnmiilio, Er. ; common" — in a list of Coleoptera 

 taken near Dublin. Dr. E. Perceval Wright has examined 

 (with Erichson's work) the eight or nine specimens repre- 

 senting this species in the Royal Dublin Soc. Mus., from 

 Mr. Hogan's Collection, and finds that none of them answer 

 the desci-iption of S. piiniiUo, Er. I have also communi- 

 cated with Mr. Hogan, but he is unable to find any further 

 specimens, and believes he must have inserted the species on 

 the authority of Mr. A. H. Haliday. ' 



