Sydmcenus.] CLAVICORNIA. 7 7 



I. Elytra with two distinct foveae at the base of each ; 



thorax with four fovea? at base. 

 i. Size large (nearly 2 mm.) ; elytra broad oval, coarsely 



and diffusely punctured ; colour brownish-red . . . S. GODAETI, Lair. 

 ii. Size smaller (not exceeding 1^ mm.). 



1. Elytra finely and indistinctly punctured ; colour 



black ; size larger. 



A. Form shorter and broader ; elytra broad oval ; 



sides of thorax gently rounded S. SCUTELLAKIS, Miill. 



B. Form longer and narrower; elytra oblong 

 oval ; sides of thorax sharply rounded, almost 



angled, in front S. COLLAEIS, Hull. 



2. Elytra rather strongly and not closely punctured ; 



size smaller. 



A. Colour black ; elytra narrower, more coarsely 



and diffusely punctured S. PUSILLUS, Mull. 



B. Colour dark reddish-brown; elytra broader, 



less coarsely and diffusely punctured . . . . S. PoWERf, Fowler. 



II. Elytra with one distinct dorsal fovea at base of 

 each ; thorax without distinct basal fovese, but with an 



indistinct transverse basal furrow S. EXIUS, Er. 



S. CJ-odarti, Latr. The largest of our British Scydmsenidse ; of a short 

 and convex form, colour lighter or darker chestnut-brown or reddish, 

 antennse and legs red, tarsi testaceous-yellow ; antennae rather long and 

 slender and scarcely thickened towards apex, with the four penultimate 

 joints as long as broad ; head a little narrower than thorax ; thorax 

 feebly cordiform, about as broad as long at its widest, with the basal 

 f ovese small ; elytra much broader than thorax, oval, very convex, plainly 

 punctured, with two rather small foveae at the base of each, of which the 

 outer one is less distinct ; the usual fold at the shoulders is only just 

 indicated. L. If- 2 mm. 



Male with anterior femora more thickened towards apex, rounded 

 externally. 



Under bark, in rotten wood, in company with ants ; rarely under decaying leaves ; 

 rare; Loughton, Essex; Buddon Wood, Leicestershire, in nests of Formica rvfa ; 

 Sherwood Forest (in rotten wood with ants, also on newly felled timber in the evening) ; 

 Dunham Park, Manchester, in moss and hepaticaa. 



S. scutellaris, Mull. Black, shining, very convex, with sparing 

 yellowish pubescence, antennce and legs reddish-testaceous, femora dark, 

 palpi yellow ; head narrower than thorax, eyes large ; antennse rather 

 slender, feebly thickened towards apex, with the two penultimate joints 

 about as long as broad ; thorax about as broad as long, feebly cordiform, 

 impunctate, with four f ovese at base ; elytra broad, rather short oval, 

 sparingly and finely punctured, with two foveae at base of each ; humeral 

 fold short but distinct. L. If- 1| mm. 



Male with the anterior femora rather strongly inflated and angled 

 externally towards apex. 



In haystack and other refuse, moss, decaying sea-weed, &c., also under stonrs, 

 especially in long grass near the coast ; generally distributed and common in the 



