NEW BRITISH SPECIES, ETC., IX 1861-62. 85 



50. Stenus atratulus, Erichs., Col. March, i. 540, l'2f 



Gen. et Spec. Staph. 701, 21 ; Redt. Faun. Austr. ed. 

 ii. 220, 18; Heer, Faun. Col. Helv. i. 219, 19; 

 Kraatz, Ins. Deulsehl. ii. 759, 21. 



This species is omitted in Waterhouse's Cat., but recorded 

 in Hardy and Bold's Cat, Col. North, and Durh. p. 82, 

 1851, and Ent. Ann. 1855. 



Its place in our lists is next after S. morlo, Erichs. ; I find 

 it not unfrequently in one rather dry place in Battersea Park, 

 and with the exception of three examples in Dr. Power's 

 collection (taken I believe by Mr. Brewer in the Cambridge 

 Fens), 1 have seen no specimens but those taken by myself. 



It is a small species, 1 J lin. in length, coarsely punctured, 

 with a convexity between the eyes, and an abbreviated dorsal 

 channel on the thorax; it very much resembles S. mgrltuluSj 

 Gyll., but has the abdomen margined. 



I have always wrongly supposed this insect to be the 

 *S. inorio of Erichson, and have given it away as such, 

 having been misled by a specimen in Dr. Power's collection, 

 I'eturned by Dr. Kraatz with that name ; this latter example 

 is certainly not 7nor'w ; having, apart from other characters, 

 the convexity between the eyes, as in ati'atulus; w^hereas 

 itiorio has the front of the head gently excavated. 



51. Stenus lustrator, Erichs., Col. March, i. 548, 22, 



Gen. et Spec. Staph. 712, 41 ; Redt. Faun. Austr. 



ed. ii. 226; Kraatz, Ins. Deutschl. ii. 764,28 ; Wat. 



Cat. p. 108(1861). 

 Originally taken and determined by Dr. Power; sub- 

 sequently found by myself and Mr. A. Hayward at Croy- 

 don, and by Messrs. Crotch and Brewer in the Cambridge 

 Fens. 



