STENELMIS. GEORYSSUS. 83 



110 Stenelmis Dufour. 



639 parallelipipedus III. M. {Mull.) v. 200. — Ste. M. ii. 108. pi. xiii. f. 5. 

 — Oblong, linear ; flat ; shining black ; antenna 1 and legs reddish : thorax 

 4-drate, disc very glossy, with a curved line on each side, and a central 

 impressed dot, margin much raised ; elytra punctate-striate, the lateral 

 strife elevated, the 2d especially ; interstices impunctate, and very glossy. 

 (L. -1 1.) Exeter; Manchester; Scotland: 5-7. 



111 Georyssus Latreille. 



640 pygmaeus Fab. E. i. 133. — Ste. M. ii. 105. pi. xiii. f. 3 Black; 



head opaque, front unequally rugged ; thorax glossy, narrowed in front, 

 dilated on the sides, disc with a transverse impression ; elytra more glossy 

 than the thorax, very convex, the shoulders prominent, the disc with large 

 deep punctate striae; interstices coriaceous; antennas fuscous. (L. -|-1 1.) 

 Damp places near London, and in Suffolk and Norfolk ; in the Annan, 

 near Moffat : 5-6. 



Fam. 13. HELOPHORIDiE Leach. 



cxii. Hydrochus Ant. 7-jointed, the 3 terminal joints forming an elongate 

 compressed club, of which the last joint is long : max. palpi elongate, apical 

 joint rather short ; lab. moderate : tho. elongate 4-drate : eyes very pro- 

 minent : body narrow : legs long and slender. 



cxiii. Helophorus Ant. 9-jointed, 3 terminal joints forming a short club, 

 with the last joint short : palpi all elongate, terminal joint of max. ovate ; 

 tho. transverse with longitudinal channels : eyes sessile : body somewhat 

 ovate : legs moderate. 



cxiv. Enicocerus Ant. 11 -jointed, the basal joint long, 2d cup-shaped, 2 

 next minute, the 5 terminal ones forming a club : labrum large, notched : 

 max. palpi shorter than the head, which is 3-angular : eyes slightly promi- 

 nent : tho. somewhat heart-shaped : elytra wide, ovate. 



cxv. Ochthebius Ant. 9-jointed, the last 5 composing a club : max. palpi 

 rather long, terminal joint minute, conic ; lab. short : head large : eyes 

 scarcely prominent : tho. short, entire, rather dilated on the sides : body 

 elliptic : legs short. 



cxvi. Amphibolcs Ant. 7-jointed, the last 5 composing an elongate club : 

 max. palpi shorter than the thorax, the apical joint short : head large : eyes 

 prominent : tho. dilated on the sides : elytra ovate, large, covering the 

 abdomen : legs short. 



cxvii. Hydrjena Ant. 7-jointed, the last 4 forming an oval club: max. palpi 

 very long, longer than the head and thorax together ; terminal joint fusi- 

 form ; lab. moderate, apical joint subulated : labrum notched : tho. some- 

 what 4-drate : elytra short, not covering the abdomen : legs rather long. 



112 Hydrochus Germar. 



641 elongatus Fab. E. i. 277.— Ste. M. ii. 110. — Cur. viii. pi. 359 



Pitchy-black, sometimes tinted with brassy : head advanced, roughly punc- 

 tate ; thorax deeply punctured, with 5 foveas ; elytra deeply punctate-striate, 

 interstices narrow, the 2d and 3d partly, and the 4th, 6th and 8th entirely 

 elevated, the 2d and 4th most acutely; legs and antennae pitchy. (L. 

 l|-2l.) Battersea fields ; Wandsworth, &c. : 4-5. Netley ; Spitchweek ; 

 Norfolk and Dumfriesshire, &c. : 4-6. 



642 angustatus Muller. — Hy. crenatus Ste. M. ii. 110. — Brassy, or greenish- 

 black, shining : head advanced, with 3 deep frontal sulci ; thorax 

 thickly punctured, with 5 foveae ; elytra much wider than the thorax, deeply 



