68 HYDRADEPHAGA. — DYTICID^I. 



518 umbrosus Gyll. iv. 538. — Ste. M. ii. 55. —Sturm, D. F. ix. pi. 210. 

 f. B. — Oblong-ovate, slightly convex, black ; deeply punctured : head 

 dull-red, with a dusky cloud between the eyes ; elytra dull pitchy-red, or 

 fuscous, pubescent ; narrowed behind ; legs and antennae pale red ; tip of the 

 latter black. (L. 1-lf 1.) Near London : 5-6. 



519. marmoratus Dakewell — Ste. M. v. 438 Slightly flattened ; black : 



elytra pitchy-brown, with 4 oblique testaceous spots on each side at the 

 base, the margin also testaceous, with brown lines ; the apex with a rounded 

 testaceous spot ; legs ferruginous. (L. 1^1.) Nottingham. 



§ B. Sides of thorax in continuity with those of elytra. 

 a. Elytra rather truncate at tip. 



520 fufifrons Duft. i. 270. — Ste. M. ii. 56. — Sturm, D. F. ix. pi. 207. f. A. 

 — Oblong-ovate, slightly convex ; pitchy-black : head pitchy-red, finely 

 punctured ; thorax above finely punctured, the margins a little rounded : 

 elytra coarsely punctate ; slightly pubescent, the base and outer margin 

 dull rusty-red: legs and base of antennas dull- red, tip of the latter dusky. 

 (K. 2-2^1.) Wandsworth Common; Netley, &c. : 2-4. 



521 marginatus Kunze, E. F. 67. — Ste. M. ii. 56. — Oblong-ovate; pitchy- 

 black ; pubescent : head dull-red, with a dusky spot on each side near the 

 eyes, sometimes united ; thorax punctate, the sides dull-red ; elytra finely 

 punctate, rusty-black, the margins paler at the base ; legs and base of an- 

 tenna; dull-red, tip of the latter dusky. (L. 2 1.) Near London; Ulswater 

 Lake ; Cambs. , &c. : rare : 3-5. 



522 deplanatus Gyll. iv. 391. ? — Ste. M, ii. 56. — Ovate, flat, pitchy-black, 

 opaque, finely punctured, slightly pubescent : head dull-red in front, with a 

 dusky line near each eye ; thorax transverse, the sides very obscure red ; 

 elytra with the shoulders and lateral margin at the base dull-red; legs and 

 base of antennas the same, tip of the latter dusky. (L. 2 1.) Also rare; 

 Surrey and Croydon canals ; Oxford : 3-6. 



523 ferrugineus Rudd. — Ste. M. ii. 193. — Flat, deep dull pitchy-red; 

 head and thorax brighter, the outer margins of the latter dilated and red ; 

 elytra pitchy, with the base irregularly testaceous, and the apex paler ; 

 antennae and legs bright rust-colour. (L. 2 1.) Collingbourne Wood 

 and Kimpton : 4-6. 



524 subelongatus Ste. M. v. 392. — Somewhat flat and elongated ; shining 

 black, very thickly and coarsely punctured : thorax with the lateral margin 

 and the legs dull-red. (L. 2 1.) North of England. 



b. Elytra not truncate at the apex. 



525 Scalesianus Ste. M. ii. 57. — Minute, dull rusty-red ; black beneath : 

 elytra dull chestnut, the outer margin paler, finely and thickly punctured 

 throughout; legs and antenna? testaceous- red, the latter palest. (L. ^ 1.) 

 Norfolk. 



526 unistriatus III. K. i. 266. — Ste. M. ii. .57. — Dy. parvulus Pz. F. xcix. 

 f. 2. — Ovate, flattish, pitchy-black : thorax transversely testaceous, with 

 a stria on each side at the base, in continuity with 1 on the elytra, these 

 are finely punctulated, black, with an obscure reddish patch near the 

 shoulder, and an abbreviated stria parallel witli the suture ; legs dull-red. 

 (L. 4-1 1.) London district ; Devon; Norfolk: 3-6. 



527 geminus Fab. E. i. 272. — Ste. M. ii. 57. — Dy. trifidus Pz. F. xxvi. 

 f. 2. — Oblong-ovate, flattish ; black : head pitchy-red ; thorax with a 

 dull-red transverse band, terminated on each side by an oblique, deep 

 stria, which is carried on to the the base of the elytra ; the latter are glossy 

 black; with a band and some marginal blotches testaceous, and a stria 



