224 Mr. H. W. Bates on Longicorn Coleoptera. 



and sixth joints grey, middle of the terminal joints grey. Tho- 

 rax at first sight appearing to be gradually narrowed from base 

 to apex; but the base itself is narrowed, and each side has an 

 acute projection, pointed backwards, and nearly touching the 

 humeral callus; surface with thirteen stripes alternately black 

 and tawny, the central (black) stripe with a grey line down its 

 middle. Scutellum black, streaked with grey. Elytra with the 

 shoulders not advanced laterally but vertically and forward, so 

 that the humeral ridge fits into the narrow space between the 

 lateral tubercle and the base of the thorax ; the surface is setose, 

 punctured, and grey, with numerous pinkish marks which are 

 chiefly collected round the black fascia? ; the latter are three in 

 number — one, short, before the middle, the second, oblique and 

 angular, behind the middle, and the third, quadrate, at the apex ; 

 the extreme apex is bordered with grey or pinkish, and is trun- 

 cated, with the sutural angle simple, the external produced into 

 a long spine. Body beneath greyish, sides with a stripe of 

 fulvous tomentum, abdomen with the sides spotted in the middle. 

 Legs grey, femora with a pinkish spot on their upper surface ; 

 tibire ringed with grey and black ; tarsi black, with the two 

 basal joints grey ; fore tarsi of the male moderately dilated and 

 fringed. 



6 . Terminal ventral segment broadly emarginated, angles 

 acute ; dorsal narrowed to the tip, broadly notched. 



$ . Terminal ventral segment broadly emarginated, with a 

 pencil of stiff hairs proceeding from each angle ; dorsal truncated. 



Branches of dead trees, forest, Para. In the colours of the 

 elytra this species resembles C. velutina. 



To this section of the genus belong also C. pcecila, Germar 

 (Ins. Nov. p. 488), C. subcincta, Castelnau (Anim. Artie, ii. p. 

 491), C. strigosa, Mannerheim *, and C. vidua f (Chevrol. MS.) j 



* C. strigosa (Mannh. sec. Dom. Deyrolle). Elongata, postice paulo 

 attenuata. Caput et antennae rufescentia, hsc articulis basi palli- 

 dioribus. Thorax ante basin tuberculo conico instructus, deinde parum 

 angustatus, dorso brunneo vittis quinque lateribusque nigris. Scu- 

 tellum nigrum, macula grisea. Elytra brunnea, cinereo fulvoque 

 varia, macula obliqua angulata ante medium, fascia valde undulata 

 pone medium liturisque angulatis prope apiccm nigris ; apicibus sinuato- 

 truncatis, angulis suturalibus paulo, exterioribus valde productis. 

 Corpus subtus ocbraceum, abdoraine nigro maculato. Pedes rufes- 

 centes, cinereo annulati. Long. 7 lin. £ . Hab. in Brazil. 



•j- C. vidua. Minor, nigra, cinereo maculata. Caput nigrum, vertice line- 

 olis duabus divergentibus cinereis. Antenna? nigra?, articulis basi 

 griseis. Thorax angustior, lateribus pone medium tuberculo parvo 

 armatis ; niger, dorso vittis duabus maculam includentibus lineolaque 

 laterali cinereis. Elytra nigra, cinereo sparsim maculata. apice truncata, 

 angulis exterioribus productis. Corpus subtus cinereum. Pedes nigri, 

 cinereo annulati. Long. 4\ lin. $ . Hab. in Mexico. 



