80 MANDIBULATA. — COLEOPTERA. 



Sp. 32. bipustulatus. Ovatus, niger, nitidus, longitudinaliter tenus-striatus, 

 posterius angustatus depressus, pedibus piceis. (Long. corp. 4| — 5| lin.) 



Dy. bipustulatus. Linne — Co. bipustulatus. Steph. Catal p. 51. No. 510. 



Ovate, black, shining, depressed posteriorly, the entire surface thickly and evi- 

 dently covered with slender longitudinal anastomozing striae : head with the 

 labrum and mouth pale- ferruginous ; the vertex with two elongate rufo-fer- 

 ruginous transverse spots : thorax sinuated posteriorly, rather convex, glossy- 

 black: elytra ovate, large, slightly convex anteriorly, depressed posteriorly, 

 shining black, with a brassy tinge, the striae rather deeper than on the head 

 and thorax, and the disc of each elytron with three irregular rows of impres- 

 sions : body pitchy-black beneath, striated, the posterior segments with fer- 

 ruginous edges : legs pitchy-black, the anterior tibiae and tarsi testaceous. 



Var. /3. Steph. Catal. 1. c. With the anastomozing striae more deeply im- 



Var. y. Steph. Catal. 1. c. With the elytra entirely more or less of a pitchy- 

 brown or rufo- testaceous : probably immature. 



Extremely common throughout the metropolitan district ; and, 

 I believe, in most parts of the south. " Very abundant in Cam- 

 bridgeshire." — Rev. L. Jenyns. " Somewhat scarce near Kimpton, 

 occurring only in ponds." — Rev. G. T. Rudd. 



Sp. 33. confinis. Ovalis subdepressus, niger, elytris l&vissimis fuscis margine 

 piceo-testaceo, pedibus piceo-nigris. (Long. corp. 4 lin.) 



Dy. confinis. Gyllenhal. — Co. subopacus. Steph. Catal. p. 51. No. 511. 



Oval, subdepressed, black: head finely punctulate, the labrum and mouth fer- 

 ruginous ; the crown with two transverse rufo-ferruginous spots : thorax a little 

 convex ; finely punctulate, subsinuated behind, rather glossy and brassy-black, 

 the lateral margins slightly rufescent : elytra large, ovate, not dilated in the 

 middle, a little depressed, the back shining dusky-black, very smooth, the 

 margins indeterminately pitchy-testaceous ; each elytron with three rows of 

 impressions, placed somewhat regularly at the base, but irregularly towards 

 the apex: body deep-glossy black beneath, the posterior segments of the 

 abdomen edged with ferruginous : legs pitchy-black, with the anterior tibia? 

 and tarsi rufescent. 



One specimen only of this species has come under my inspec- 

 tion : it is in my own cabinet, and was taken by myself, several 

 years back, in the neighbourhood of London. 



Sp. 34. angustior. Oblongo-ovatus angustior, convexus, nigro-asneus, posterius 

 attenuatus, elytris immaculatis, corpore pedibusque piceis. (Long. corp. 4 

 lin.) 



Dy. angustior. Gyllenhal. — Co. angustior. Steph. Catal. p. 48. No. 482. 



Oblong-ovate, narrow, convex, blackish-brass ; the entire surface finely coria- 

 ceous : head with the mouth, labrum, and sometimes the anterior margin of 



