HYDROPORUS. 69 



parallel with the suture extending to the apex ; legs dull rusty-red. (L. 

 1-1^1.) Coombe Wood, in ponds ; Appleshaw, &c. : 4-6. 



528 minimus Scop. 297. — Ste. M. ii. 58. — Minute, ovate, black: elytra 

 with a submarginal line, 2 at the base and the apex, pale ; legs red ; an- 

 tennae dusky, the base pale. (L. ^-1 h) London; Southend; Devon, &c. : 

 3-6. 



529 granulans L. ii. 667. — Ste. M. ii. 5%.— Stu. D. F. ix. pi. 211. f. c. 

 — Oblong-ovate, flattish ; black : thorax with the lateral margins generally 

 testaceous ; the base with a stria on each side ; elytra sparingly punctured, 

 and pilose, with 2 pale submarginal lines, and a streak on the margin 

 itself; legs and base of antenna? testaceous. (L. f-1 1.) Near London ; 

 river Cam ; Netley ; Weyhill ; Cardew Mire, &c. : 4-6. 



530 concinnus Ste. M. v. 392. — Oblong-ovate, slightly glossy, and finely 

 punctured ; very pale ochreous : head and thorax spotless ; elytra with the 

 suture broadly fuscous, and each with 5 distinct narrow lines of the same 

 colour, extending to the apex. (L. If 1. ) Gravesend: 4. 



531 ovalis Fab. E. i. 269. — Ste. M. ii. 58. — Oblong-ovate, slightly con- 

 vex, dull-red : thorax with base and apex dusky ; elytra rather narrowed 

 behind, opaque, pubescent, with the suture red, 4 lines, and an oblique 

 stripe on the margin, fuscous; legs and antennae pale rusty. (L. 1^-lf 1. ) 

 London district ; Crosby, near Carlisle ; Bottisham ; Marton, &c. 



532 pygmaeus Fab. E. i. 272. ? — Ste. *M. v. 392. — Oblong-ovate ; ferru- 

 ginous ; opaque ; very minutely punctured : elytra fuscous, with 2 faint 

 lines and the lateral margins yellowish-red ; legs and antennae ferruginous, 

 tip of the latter dusky. (L. 1^1. ) Near London : 5-6. 



533 nigrita Fab. E. i. 273 Ste. M. ii. 59. — Stu. D. F. ix. pi. 209. 



f. A. — Rather oblong-ovate, flattish, black, slightly shining and sparingly 

 punctured : elytra broad with an obscure punctate stria on the disc, slightly 

 pubescent; legs dull red, hinder thighs dusky at the base. (L. If 1.) 

 London and Netley : 5-6. 



534 trivialis Spence ? — Ste. M. ii. 59. — Ovate, rather convex ; black ; 

 slightly pubescent: head pitchy; thorax with the hinder margin thickly 

 punctate ; the disc smooth ; elytra narrowed towards the apex, thickly and 

 coarsely punctured throughout ; legs pitchy ; antenna? pitchy-red at the 

 base, dusky at the tip. (L. 1^1.) London; Yorks. ; Southend; Braid 

 Hill, Scotland. . 



535 minutus Ste. M. ii. 59 Oblong-ovate, flattish ; black : thorax with 



the hinder margin punctate, the sides broadly dull red ; elytra slightly 

 pubescent and punctured, with a faint elevated line on each towards the 

 suture; legs and antennae at base pitchy-red. (L. 1 i 1. ) London; 

 Southend and Netley : 5-6. 



536 caliginosus Stephens — Dy. planus Marsh, i. 425. — Ste. M. ii. 60. — 

 Oblong-ovate, flat ; black : elytra obsoletely punctured, palish pitchy at 

 the base, and a faint abbreviated stria in the middle of the base ; body 

 beneath, and legs pitchy; tibiae red. (L. 1| 1.) Near London: 3-6. 



537 memnonius Nicol. C. H. 33. — Stu. D. F. ix. pi. 208. f. A. — Hy. 

 jugularis Babington. — Ste. M. v. 392. — Oblong-ovate, flattish ; 

 black ; glabrous : crown behind, throat, antennae and legs dull red ; sides 

 of thorax dusky-ferruginous ; elytra nearly glabrous, more or less punctate. 

 (L. 2-2^1.) Boroughbridge, Yorks. ; Berwick-upon-Tweed; Cambridge; 

 Cop ford, Essex : 4-6. 



538 melancocephalus Marsh, i. 423. — Ste. M. ii. 60. — Oblong-ovate ; 

 slightly convex ; black ; glabrous, finely punctured : vertex behind pitchy- 

 red ; thorax glossy ; elytra immaculate, sparingly punctate ; legs pitchy- 



