68 Mr. T. V. WoUaston's Revision of 



depressed form, by its darker and browner bue, and by its mucb 

 less developed prothorax, — wbicb is narrower tban tbe elytra. 

 It is ratber a scarce insect, tbougb widely distributed tbrougbout 

 tbe country. I bave taken it at Whittlesea Mere ; at Spridlington, 

 near Lincoln ; at Bridlington, on tbe Yorkshire coast ; at Cransley, 

 in Nortbamptonsbire ; at Basset Down and Avebury, in Wilts; at 

 Farmington, in Gloucestersbire ; at Treneglos, in Cornwall ; and 

 in tbe county of Cork (near Kanturk), in Ireland. And it bas 

 been captured by Mr. Morris Young, in Renfrewshire. 



Amongst tbe seven specimens wbicb are labelled "nigriventris" 

 in tbe Stephensian cabinet, there is a single clongatula. As five, 

 however, out of tbe remaining six are unquestionably tbe examples 

 which Mr. Stephens described from (as, indeed, is proved by the 

 labels which are attached to two of them), and are identical with 

 the (subsequently established) ^. nana of Erichson, it is clear 

 that the title of nigriventris will bave to be conceded to that 

 species, and cannot, therefore (although of prior date to elongatula), 

 affect the present insect. 



Sp. 5. Atomaria umbrina. 



Cryplophagus ximhrinus, Gyll. Ins. Suec. iv. p. 291 (1827). 

 Alomaria nigrirostris (p.), Stepb., 111. Brit. Ent. iii. p. 69 (1830). 

 ■ uvihrina, Erich., Nat. der Ins. Deuts. iii. p. 380 (1848). 



Approaches very closely to the A. nigriventris, but it may be 

 known by its usually slightly larger size, by its somewhat less 

 shining, and just perceptibly flatter and less deeply punctured 

 surface, and by the structure of its prothorax, — which is trans- 

 versely impressed in the centre of its binder region, with indica- 

 tions of a short costa, or raised line (often very obscure), on 

 either side of the depression, and with its sides and posterior 

 angles more evidently margined. I have received specimens from 

 Miierkel's collection, as also from Paris, which agree perfectly with 

 tbe English ones. It is by no means a common insect in this 

 country. I have, however, captured it at Mablcthorpe, on the 

 Lincolnshire coast ; at Cransley, in Northamptonshire ; atShenton, 

 and in the Ambion wood, near Market Bosworth, in Leicestershire; 

 at Holm Bush, near Brighton; and at Withington, in Gloucester- 

 sbire : and it has been taken by Mr. Waterbouse at the Crystal 

 Palace, Sydenham. Mr. Murray also has found it near Edin- 

 burgh, and Mr. Haliday in Ireland. 



Tbe A. nigriroslris of the Stephensian collection is composed 

 of four specimens of the //. umbrina, Gyll,, and five of tbe A. nana. 



