64 COLEOPTERA. 



thorax, the latter with two oblong gentle impressions, and 

 the elytra very closely punctured and sub-rugulose. 



Its very short antennae will serve to distinguish it from 

 the other elongate depressed species. 



One specimen taken during the summer of 1862, in 

 rotten wood near Gumley, Leicestershire, by the Rev. A. 

 Matthews. 



37. Omaltum crassicorne, Matthews, Zool. 8650(1863), 

 (described). 



Taken by the Rev. H. Matthews, near Waddington, in 

 Lincolnshire, about the year 1850. 



Mr. A. Matthews, who describes this species, remarks, 

 that it differs from O, salicis (to which it comes nearest) in 

 its very short antennae, smaller thorax, and very dissimilar 

 punctuation. 



From the description (loc. cit.) this insect is If lin. in 

 length ; rufo-castaneous, shining ; the head pitchy-black, 

 distinctly and remotely punctured, and impressed with a 

 deep, rugose, transverse fovea, the eyes large and very pro- 

 minent ; the antennae, palpi and legs bright orange-red, the 

 former being short and stout, scarcely longer than the head, 

 gradually incrassated towards the apex, the penultimate 

 joints transverse, and the apical joint large and acuminate ; 

 the thorax ratlier wider than its length, with rounded sides 

 and acute posterior angles, distinctly and remotely punctured, 

 and with two slight oval depressions behind the middle, the 

 margins being pale; the elytra about twice as long as the 

 thorax, and wider, rugosely and confusedly punctured, but 

 distinctly striate, the striae evanescent at the sides and apex ; 

 the abdomen broad, depressed, strongly margined, smooth 

 and shining, clearly and very finely punctured. 



