74 MANDIBULATA. COEEQPTERA. 



hinder segments and the apex ferruginous: legs ferruginous, the anterior 

 femora in the middle, on both sides, and the posterior nearly entirely black. 



Rare : it occurs in Suffolk ; and my specimen I obtained from a 

 Norfolk collection. 



Sp. 19. paludosus. Ovalis, subdepressus, niger, Icevis, thoracis lateribus pedi- 

 busque ferrugineis, elytrisfuscis, basi margineque pallidis. (Long. corp. 3 — 

 3j lin.) 



Dy. paludosus. Fabricius— Co. paludosus. Steph. Catal. p. 50. No. 499. 



Oval, subdepressed, black, smooth, glossy : head black, with the mouth, labrum, 

 and forehead, anteriorly testaceous-yellow ; the crown with two transverse 

 ferruginous spots : thorax moderately convex, glossy-black, sometimes brassy 

 or bluish, very smooth, the lateral margins broadly rufo-ferruginous : scu- 

 tellum testaceous : elytra ovate, punctate, as in Co. congener ; but the inter- 

 stices entirely smooth, glossy, the back dusky, the base and margins testaceous- 

 yellow : body smooth glossy-black beneath : four anterior legs ferruginous, 

 the base of the femora pitchy-black, the posterior piceous, with the joints 

 ferruginous. 



Var. j8. Paler, with the body testaceous beneath, probably immature. 



Occasionally found in gently-flowing streams near London : it 

 also inhabits Norfolk, the neighbourhood of Bristol, Swansea, and 

 the hilly districts of Devonshire. " Very abundant in September, 

 1825, at Netley ; and at Skipton and Larden, Salop, July, 1828." 

 — Rev. F. W. Hope. " Bottisham, sparingly, always in running 

 streams."— J?£z>. L. Jenyns. " Chevening, Kent, and Epping- 

 forest." — Mr. Ingpen. " Middlemist, Dorsetshire." — J. C. Dale, 

 Esq. " Very common near Kimpton." — Rev. G. T. Rudd. 



Sp. 20. maculatus. Ovatus, supra niger, thorace fascia lata, elytris maculis> 

 lineisque longitudinalibus pallidis. (Long. corp. 3^ — 4 lin.) 



Dy. maculatus. Linne.— Co. maculatus. Samou, pi. 3. f. 15. Steph. Catal. 

 p. 50. No. 500. 



Ovate, above black, finely punctulated : head anteriorly rufous, posteriorly black, 

 with two transverse ferruginous spots : thorax slightly convex, pale-yellowish, 

 the anterior and posterior margins black in the middle : elytra ovate, convex 

 anteriorly, with three obsolete punctate striae on the disc, glossy-black, with 

 the lateral margin pale or whitish ; near the base, internally, a whitish spot ; 

 posteriorly bifid, the exterior branch running to the apex of the elytra ; near 

 the exterior margin two whitish spots, one before, the other behind the 

 middle, both bifid on either side, and connected with the pale margin; within 

 the apex is a round spot terminating in a line on the disc : these spots vary 

 much in size and form : body rusty-brown beneath, the apex often obscure : 

 legs rufo-ferruginous. 



Var. j3. Steph. Catal. 1. c. Differs in having the spot at the base of the elytra 

 abbreviated, and the lateral spots smaller. 



