212 LYG^INA. 



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

 bescence. 



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

 towards the brown apex of the central lobe. Antenna piceous, ends 

 of the joints whitish. JZyes piceous. Ocelli black. Rostrum pitchy- 

 yellow. 



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

 straight; disk rather convex, delicately punctured, the punctures 

 larger posteriorly; posterior margin piceous. Scutelhim finely 

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

 Clavus and Corium on the same plane ; Clavus (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 ; Membrane appears merely as a piceous border to 

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

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

 tibiae pale piceous, pubescent, the hairs longer on the 2nd and 3rd 

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



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

 longer yellowish hairs. 



Length, 1 \\ line. 



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

 August ; Dartford Heath, August ; Southend, September ; Yentnor 

 (G. Guy on). 



Species 2. PLINTHISUS BIDENTULUS. 



PACHYMERUS BIDENTULUS, H. Schf. Wanz. vi, 31, 1. 191, fig. 588 (1842). 

 PLINTHISUS Fieb. Europ. Hem. 178, 2 (1861). 



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

 piceous. 



Head delicately punctured, with very fine short pubescence, and 

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

 the central lobe. Antennae 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 



