124 Dr. Sharp's Revision of the 



is to say, that in a given spot the greater portion of the 

 specimens found may be referred to one or other of 

 the varieties. The type and var. /8 are the commonest, 

 more especially in the south ; var. a is rare, I have found 

 single specimens of it at different times near Thornhillj 

 var. 7 is rare, but generally distributed; of var. S, the 

 extreme forms are to be found only among the Scotch 

 hills, in shady and wet places, but I have from Wimble- 

 don Common numerous specimens intermediate between 

 it and the type. 



The varieties might be increased to an indefinite extent, 

 by taking into consideration the channelling of the thorax, 

 the colour of the extremity of the abdomen, and of the 

 elytra, &c. 



Ohs. — I am strongly inclined to think that several of 

 the species of Homalota described by Thomson as allied 

 to H. elongatula will prove to be forms of S. volans. 

 Indeed, a specimen of Atheta halophila which Mr. Crotch 

 has received from Herr Thomson is certainly not specifi- 

 cally distinct from H. volans. 



25. Homalota clavipes. 



Linearis, nigra, sat nitida, subtiliter sat confertim punc- 

 tata, antennis pedibus anoque fusco-testaceis ; thorace 

 subquadrato, elytris hujus longitudinis ; abdomine supra 

 segmentis 2-4 confertim subtiliter, 5-6 sat sparsim punc- 

 tatis. Long. If lin. 



Mas ; segmento 7° ventrali distincte producto. 



Fern. ; segmento 7° ventrali haud producto, apice 

 medio obtuse angulato. 



Var. — Capite medio canalicula brevi. 



Resembles a large dark coloured elongatula. Antennae 

 pitchy-testaceous, with the base a little paler, moderately 

 long, a little thickened towards the apex ; joint two 

 rather longer than three ; joints four to ten varying but 

 little in length, but each one a little broader than the 

 one before it, the fourth joint longer than broad, the 

 tenth about as long as broad ; the eleventh not quite 

 twice the length of the tenth. Palpi pitchy-testaceous. 

 Head narrower than the thorax, pretty densely and finely 

 punctured, sometimes with a distinctly impressed short 

 channel on the disc, sometimes with an indistinct fovea, 

 and sometimes convex. The thorax is very nearly as 



