88 ADEPHAGA, [Plotynus. 



sharp, projecting, disc convex, transversely wrinkled, side margins broad 

 and reflexed, dorsal furrow deep, terminating in front in a deep depres- 

 sion, base with a strong deep fovea on either side ; elytra oval, much 

 broader than thorax, broadest behind middle, with sides sinuated rather 

 strongly before apex, deeply striated, the strias obsoletely crenulate or 

 punctured, interstices convex, the third furnished with three pores ; legs 

 pitch-black or brown, tarsi usually lighter : the largest species of the 

 genus that we possess. L. 10-11 mm. 



At roots of trees, under loose bark, &c., common and widely distributed through- 

 out the country ; Scotland, common, Lowlands. 



Group II. (Sub-Gen. Clibanarius, Gozis.) 



A. dorsalis, ]Miill. {prasinns, Thunlt.). Head and thorax green, 

 elytra testaceous with a large common blue-black or greenish-ljlue 

 patch extending from above the middle to apex, leaving the margins 

 broadly testaceous ; head large, antennse pitchy Avith base reddish 

 testaceous ; thorax longer than broad, contracted behind, and feebly 

 cordiform, posterior angles nearly right angles, slightly raised, dorsal 

 furrow more or less abbreviated in front and behind, base with a large 

 deep longitudmal fovea on each side ; elytra oblong-ovate, moderately 

 striated, the striae feebly punctured, with three more or less obscure 

 pores on the third interstice ; miderside black, sometimes greenish ; legs 

 pale red. L. 6-7 mm. 



Common and widely distributed throughout the kingdom ; found under stones, at 

 roots of plants and trees, and in various situations. 



Group III. (Sub-Gen. Anchomenus, Bonelli.) 



A. albipes, F. {paUipes, Dej.). Pitchy black, winged ; antennae and 

 palpi ijale or reddish testaceous ; thorax cordiform, posterior angles small 

 and acute, projecting, dorsal furrow abbreviated in front and behind, 

 base coarsely punctured ; elytra broad, ovate, shoulders round, striae im- 

 punctate, third interstice with three pores ; legs pale testaceous. L. 

 6-8 mm. 



Abundant in damp situations throughout the kingdom, and in fact throughout the 

 whole of Europe with the exception of Eastern Russia ; often common on the coast 

 a little above high-water mark, as well as inland. 



Immature specimens of this species are often of a pronounced red 

 colour, and sometimes cause disappointment to collectors who think at 



first sight that they have found a good species. 



t 



A. oblong'us, Sturm. Light jjitchy, head and thorax darker, 

 apterous ; antennce and palpi pale or reddish testaceous ; thorax long, 

 narrow, scarcely wider than head, considerably contracted behind, 

 posterior angles prominent, dorsal furrow distinct, strongly punctured at 

 base, plainly, but not so strongly, in front ; elytra oblong-ovate, convex. 



