Pi-ATE VII. — Continued. 



and sixth wiili a very irregular double one. Beneath black, iiieso- and iiieta-thorax thickly 

 clothed with goKle)i pube.sceiicc ; sternuni with a furrow in front, and an impressed line liehind ; 

 abdomen keeled in the centre throughout its whole length. Length, lG-20 lines. 

 Common, in ponds, throughout England. 



Fig. 60. OCriTHEBIUSPUNCTATUS, S:/epA. [F. Elophorida:. G. Ochthebius, LeacA.] 

 (0. hibernicus, Curtis.) 



Elongate ovate, convex, black, with a brassy or coppery tint. Head minutely and rather 

 thickly punctate, with two deep foveas in front ; antenuaj and palpi reddish yellow, club of the 

 former fuscous. Thora.\ transverse, narrowed in front and behind, sides rounded, minutely and 

 thickly punctate, with a central longitudinal impressed line, and on each side of it a shallow 

 interrujited oblong fovea, posterior angles with a large shallow impression. Elytra oblong, with 

 an abbreviated sutural stria, irregularly rugulose-punctate. Beneath ferruginous, \rith a brassy or 

 coppery tint, pubescent. Legs reddish yellow. Length, 1^ line. 



Rare : near London ; Bristol, &c. ; and in Ireland. 



Fig. 61. OCIITHEBIUS EXSCULPTUS, M«/fer. (Female.) [F, ElophoridiE. G. Ocli- 

 thebius, Leach.'\ (Enicocerus Gibson!, Curtis.) 



Ovate, above black, with a brassy or coppery hue. Head finely and sparsely punctate, forehead 

 with two oblique fovese united posteriorly. Thoraxheai't-shaped, punctate, in the male (E. viridite- 

 neus, Steph., Curtis) black, with the lateral margins brassy, a central longitudinal channel, and on 

 each side of it an oblong fovea, and an oblique lateral impression near the base ; in the female, 

 brassy throughout, with four fovew arranged iu a quadrangle, two on each side of the central 

 channel, and a large ovate oblique lateral impression behind. Elytra broadly ovate, each with ten 

 punctate stria", the punctures large and closely set ; interstices narrow, convex, smooth, the 3rd, 

 r)th, and 7th more salient than the others. Beneath black, with a silvery pubescence. Legs 

 j'cllow, apex of femora and tarsi fuscous. Length, J-1 line. 



Not uncommon in the north of England and iu Scotland, beneath stones in streams. 



Fig. 62. HETEROCEIIUS OBSOLETUS, Curtis. [F. Heterocerida. G. Heterocerus, 



Bos C.I 



Oblong, rather convex, pitchy black, with a dense erect brown pubescence Head thickly 

 punctate, mandibles pitch}' red. Thorax transverse, thickly punctate, with a ferruginous sjiot at 

 the anterior angles. Elytra finely and thickly punctate, each with a ferruginous spot at the base, 

 three placed transversely a little before the middle, three a little behind the middle, and two near 

 the apex, one or more of which are sometimes very obscure or entirely absent. Legs black, with a 

 brownish pubescence, tarsi reddish brown. Length, 2-3 lines. 



Common on the muddy margins of ditches and pools of brackish water on the east and south 

 coasts. 



Fig. 63. HYDROUS CARABOIDES, L. [F. Ilydrophilidfe. G. Hydrous, Brul/e.} 

 (Hydrophilus caraboides, Curtis.) 



Ovate, convex, black, above shining. Head with a shallovr, oblique, very coarsely and sjiarsely 

 ])unctate impression on each side in front ; antemia' and ]ialpi reddish yellow, the club of the former 

 black. Thorax transverse, narrowed in front, slightly rnundcd at the sides, with a few large 

 disjiersed punctures near the lateral margins. Elytra dilated behind the middle, indistinctly striate, 

 interstices smooth, the 3rd, 7th, 0th, and 10th with an irregular row of large ]iunctures. Beneath 

 opacjue, with a dense short yellowish brown pubescence, terminal segment of abdomen with a 

 smooth shining space at the apex. Legs pitchy black. Length, 8-10 lines. 



Common in ponds and ditches. 



14 



