BY W. MACLEAY, ESQ., F.L.S. 97 



very great, it can be, however, easily distinguished by the thorax 

 being marked with deeper transverse rugae, and with a deeper 

 emargination in the centre of the posterior lobe. The elytra also 

 are much rougher and more largely tuberculate, with an inter- 

 rupted tubercLilate costa extending from the inner side of each 

 humeral angle to beyond the middle of eacli elytron. The two 

 other species alluded to as being undescribed differ in having an 

 additional lateral costa, forming two deep lateral grooves, instead 

 of one as in this species and in tuberculatum. P. carinatum is 

 different in so many respects that comparison with it is un- 

 necessary. 



66. — Carenum salebrosum. n. sp. 

 Length 8 1 lines. 

 In general appearance not unlike C. loculosum, Newm., but 

 diflTering very much in the sculpture of the elytra. Each elytron 

 is marked with three irresrular and crooked ridges, one near the 

 suture, another more elevated near the centre, and the third 

 between that and the lateral margin, the most irregular of all 

 and scarcely traceable beyond the middle. Between the suture and 

 the first of these ridges, the space is closely filled by deep trans- 

 verse impressions, and between that and the second ridge there 

 is a series of large deep and square foveas, all the rest of the 

 elytra are covered with large deep fove^ of the most irregular 

 form. 



67. — Carenum occultum. n. sp. 



Length 11 lines. 

 This species very much resembles C. mterruptum, it is, how- 

 ever, of a more elongate form, and has a narrow border of a pale 

 blue colour, very different from the brilliant purple of the other. 



68. — Carenum viridi-marginatum. n. sp. 



Length 9 lines. 

 The resemblance of this insect to G. marginatum is very great ; 

 the elytra are, however, proportionately shorter and more ovate, 



