66 MANDIBULATA. — COLEOPTERA. 



Far from a common species, and rare near London ; also found 

 near Norwich, and in Suffolk. " Whittlesea Mere and Horningsea 

 Fen."— J. C. Dale, Esq. " Southend, and Netley, Salop."— Bel). 

 F. W. Hope. " Anglesea Abbey, Cambridgeshire, not plentifully. 1 ' 

 — Rev. L. Jenyns. 



Sp. 2. guttatus. Oblongo-ovatus, subdepressus, nigernitidus, antennis pedibusque 



rufo-piceis, elytris guttulis duabus rotundatis pallidis. (Long. corp. 4 lin.) 

 Dy. guttatus. Paykul — Co. guttatus. Steph. Catal. p. 48. No. 480. 



Rather depressed ; oblong-ovate, obsoletely but thickly and finely punctulated 

 throughout: head large, black, smooth, pitchy; vertex with two transverse 

 red spots : thorax black, immaculate, a little convex, with an obsolete impres- 

 sion behind: elytra slightly dilated in the middle, above rather depressed, 

 glossy-black, with the margin concolorous ; with a round, pale, transparent 

 spot a little behind the middle, and a second more obsolete and smaller within 

 the apex: near the suture is a continuous stria of impressed dots, and on the 

 disc anteriorly three regularly-punctate striae, becoming irregular and scat- 

 tered towards the apex : body beneath immaculate glossy-black : four anterior 

 legs pitchy-red, the posterior pitchy-black : antennae ferruginous. 



Sometimes met with in the metropolitan district : I have received 

 it from Devonshire. " The most abundant species of Colymbetes 

 in Salop ; also near Buxton." — Rev. F. W. Hope. " Under stones 

 in puddles, Glanville's Wootton." — J. C. Dale, Esq. " In a run- 

 ning stream near Ashburton, Devon, June, 1828." — Messrs. Chant 

 and Bentley. 



Sp. 3. fontinalis. Oblongo-ovatus, subdepressus, ceneo-niger, antennis pedibusque 

 piceo-nigris, elytris guttulis duabus obsoletissimis pallidis. (Long. corp. 4 

 lin.) 



Co. fontinalis. Leach, MS S. —Steph. Catal. p. 48. No. 481. 



Closely allied to the preceding, but more oblong and less depressed : the entire 

 surface is very obsoletely punctulate, and of a brassy-black : head with two 

 very faint rufous spots on the vertex ; the mouth black : thorax immaculate, 

 convex : elytra convex, deep brassy-black, with a very obsolete, minute, pallid 

 transparent spot behind the middle, and a second, still more minute and in- 

 distinct, within the apex; the lateral margin scarcely dilated beyond the 

 middle ; the disc with three very faint striae, composed of impressed dots, 

 placed regularly towards the base, and scattered towards the apex : body deep 

 black beneath ; legs pitchy-black : antennae piceous, with the base palest. 



f Var. (3. C. picicornis. Sturm ? Deep-black above and beneath, the elytra with 

 a very minute pale spot towards the margin ; the antennae, palpi, and tarsi 

 bright pitchy-ferruginous. 



The colour is sometimes pitchy above, and the antennae ferruginous. 



Found in Devonshire, and near Shoreham, Sussex. " Dartmoor." 



