212 LYGJIINA. 



Black, shining, delicately punctured, with very line scattered pu- 

 bescence. 



Head with long projecting hairs on the orbit of the eyes and 

 towards the brown apes of the central lobe. Antennce piceous, ends 

 of the joints whitish, ^j/es piceous. OceZZ^ black. Hostrtcm 'pitchj- 

 yellow. 



Thorax. — Pronotum as broad in front as behind ; sides nearly 

 straight ; disk rather convex, delicately punctured, the punctures 

 larger posteriorly; posterior margin piceous. Scutellum finely 

 crenate-punctate ; base sometimes with a slight keel. Elytra flat ; 

 Clavus and Corium on the same plane ; Glavus (sometimes piceous) 

 with 3 rows of long punctures ; Corium; anterior and posterior mar- 

 gins piceous ; inner margin and the basal ^ of the anterior margin 

 with long punctures in rows ; disk with fine, distant punctures ; 

 nerves not raised ; Ilemhrane appears merely as a piceous border to 

 the corium. Sternmn finely crenate, punctured in the middle. 

 Legs; tTiiglis pitchy -black, ends pale piceous; finely pubescent; 

 tihicB pale piceous, pubescent, the hairs longer on the 2ud and 3rd 

 pairs ; tarsi pale piceous, 1st joint generally darker. 



Abdomen above with fine, short, distant pubescence ; beneath with 

 longer yellowish hairs. 



Length, 1^ — 1\ line. 



Not rare in sandy places, under moss, &c. Deal, May and 

 August ; Dartford Heath, August ; Southend, September ; Ventnor 

 {G. Ouyon). 



Species 2. — Plinthisus bidentulus. 



Pachymerus bidentulus, H. Sc/if. Wanz. vi, 31, t. 191, fig. 5S8 (1842). 

 Plinthisus — Fieb. Europ. Hera. 178, 2 (18G1). 



Black, shining, the clavus and greater part of the corium bright 

 piceous. 



Head delicately punctured, with very fine slioi't pubescence, and 

 2 or 3 long hairs on the orbit of the eyes and towards the apex of 

 the central lobe. Ante^ince piceous, apex of the joints whitish. 

 Eyes piceous. Ocelli black. Rostrum pale piceous. 



Thorax. — Pronotum narrower in front than behind ; sides slightly 

 constricted beyond the middle ; disk very slightly convex, delicately 



