154 CLAVICORNIA. [SlilbuS. 



I. Size larger, less elongate, and more convex; pos- 



terior angles of tliorax right angles. 

 i. Upper surface lighter or darker brown ; becoming 

 plainly lighter towards apex; elytra more nar- 

 rowed towards apex S. TE3TACEUS, Panz. 



(ijeminus, 111.), 

 ii. Upper surface brownish-black, obscurely lighter 



towards apex ; elytra scarcely narrowed to apex . S. ATOMAKTTTS, L. 



(piceus, Stcph.). 



II. Size smaller, more elongate, and less convex ; pos- 



terior angles of thorax somewhat obtuse ; upper 

 surface nearly black ; elytra either gradually or 

 suddenly lighter before apex S. OBLONGUS, Er. 



S. testaceus, Panz. (geminus, 111. ; consimilis, Marsh). Short oval, 

 convex, darker or lighter brown passing into testaceous towards apex of 

 elytra ; head and thorax impunctate, antennae and mouth parts reddish- 

 yellow ; thorax with the basal margin scarcely sinuate near scutellum, 

 posterior angles sharp right angles ; elytra with one stria near suture 

 plainly marked, and with very slight traces of other striae, interstices 

 smooth and shining ; under-side reddish-brown, prosternum behind set 

 with long hairs ; legs yellowish, tarsi paler, male with the second joint 

 of the anterior tarsi rather distinctly widened. L. 2-2| mm. 



By sweeping, occasionally in haystack refuse, moss, &c. ; abundant and generally 

 distributed in the London district and the South, and not uncommon in the Midlands ; 

 I do not, however, know of any record further north than Cleethorpes, Lincolnshire ; 

 it is not recorded from the Northumberland district or from Scotland. 



S. atomarius, L. (pic.eus, Steph.). Allied to the preceding but 

 smaller, less convex, and more strongly rounded in front and behind, so 

 that it appears more elongate and parallel-sided ; the colour also is 

 different, being blackish-brown, or pitchy-black, gradually passing into 

 pitchy-reddish-brown or obscure pitchy-brown at apex ; the elytra are 

 considerably less narrowed behind ; the under-side is blackish-brown, with 

 the last segment of abdomen and the legs reddish-brown ; the pro- 

 sternum behind is set with a distinct circle of longer hairs ; the elytra 

 have one stria near suture plain and very faint traces of other strife, the 

 interstices being impunctate ; occasionally examples occur with the striae 

 a little more distinct. L. If 2 mm. 



By sweeping; rare; Bungay and Ditchinganr,, Suffolk; West Ditton; Witken 

 Fen. 



S. oblong-us, Er. Rather smaller than the preceding, less convex 

 and more elongate, and more narrowed in front and behind ; colour 

 variable, often very dark pitchy- brown almost black, obscurely lighter 

 towards apex, sometimes suddenly and distinctly testaceous before apex, 

 and occasionally entirely reddish-yellow (these specimens, however, are 

 probably more or less immature) ; the head is very finely punctured, 

 and the thorax very finely and obsolctely punctured, with the hind 



