CERAMBYCIDiE. 155 



9. Callichroma nigricorxe. B.M. 



Callichroma nigricorne, Chevr. Coll. 

 Hah. Port Natal (Coll. Gueinzius). 



10. Callichroma Currori, n. s. B.M. 



C. viridi-metallicum, elytris basi, ad humerum, emarginato ; fe- 

 moribus pedum quatuor priorum incrassatis, rufis, ad apicem 

 postice sinuatis, tibiis nigris ; tarsis pilis cinereis fere argenteis 

 tectis ; aiitennis nigris. 



Metallic green. Thorax on the back in the middle with a few 

 obscure hairs, the raised part slightly striated behind, posterior 

 part ringed. Scutellum pointed, grooved across. Elytra green, 

 wide at the base, gradually tapering towards the tip ; depressed 

 at the suture a little way beyond the scutellum, delicately trans- 

 versely striated, the shoulder and a smoothish shining line 

 about the middle punctured. Antennae black, with the outer 

 margin of the third and foiu-th joints slightly cihated. Fe- 

 mora of the four anterior legs thickened, red, black at the tip 

 and the base ; hind legs with the femora grailually thickened, all 

 the femora are, as it were, sinuated at the end beneath ; the tibife 

 are compressed, black, those of the first four legs with silky 

 brown hairs ; tarsi covered with greyish hau's, those of the hind 

 legs almost silvery. 



Length Hi hues. 

 Hab. Congo (A. Cun-or, Esq., R.N.). 



11. Callichroma Afrum. B.M. 



Cerambyx Afer, L. Mant. Plant, p. 632. 



Drury, Illustr. i. pi. 39. f. 4. 



Dalman, Schcenh. Syn. Ins. i. 3. Ajyp. p. 150. 

 Calhchroma Afra, Dej. Cat. p. 349. 

 Cerambyx ater, Fabr. S. El. ii. 268. 

 Hab. W. Africa. 



12. Callichroma sulcatulum, n. s. B.M. 



C. capite thoraceque aeneo-rubris ; thorace supra trausversim 

 sulcatulo, sulcis crebris, linea media longitudinali dorso Itevis- 

 sima ; scutello viridi ; elytris obscure purpureis, sutura vires- 

 cente ; antennis nigris chalybeo tinctis, corpore subtus flaves- 

 centi -viridi sericeo ; pedibus purpureo-nigris femoribus sub- 

 clavatis. 



Head and thorax of a brassy red, palpi obscure. Antennje 

 black, some of the joints tinged with chalybeous. Thorax across 

 dehcately grooved, the grooves close to each other ; down the 

 middle there is a narrow, smooth, highly polished line, not ex- 



