NEW BRITISH SPECIES, ETC., IN 1865. 71 



mcl more numerous, and the elytra gradually getting broader 

 Tom shoulder to apex in a more marked degree. 



15. Omalium Lapponicum, Zett. 50. 



p'meti, Thomson, Ofv. 1856 ; id. Skand. Col. iii. 209, 

 2 (Fhloeostiba) ; D. Sharp, Ent. Monthly Mag. 

 vol. ii. p. 157. 

 conforyne, Kraatz, Ins. Deutschl. ii. 987, 14. 

 Mr. Sharp records the capture by himself of one example 

 of this species, under the bark of a fir stump at Rannoch, in 

 June last. The insect is certainly rare ; for a diligent search, 

 by both Mr. Sharp and myself, produced no more speci- 

 mens. 



O. Lappoyiicum is allied to 0, planum; differing in being 

 smaller, especially narrower, with fuscous elytra, of which 

 the punctuation is finer and more sparing, and having no 

 impressions on the anterior margin of the thorax. 



16. Necrophorus microcephalus, Thomson, Skand. Col. 



iv. 9; J. A. Power, "The Entomologist," vol. i. p. 



199. 

 Dr. Power has assuredly done (and in the most exhaus- 

 tive and clear manner) all that could be done in attempting 

 to confirm the specific distinctness of this insect from N. 

 ruspator, Er. ; I think, however, from his final remarks 

 (loc. cit.), there can be no doubt he partially shares my own 

 conviction that it is only a minor form of that species. 



The differences between the types of each form appear to 

 consist,— as to both sexes, — in the larger size of N'. ruspator, 

 and its consequently larger head; and, — as to the males,— in 

 the prolongation of the posterior trochanters into a large re- 

 flexcd hook, and the larger, deeper, quadrangular, orange- 

 coloured emargination of the clypeus in that species. 



