158 CERAMBYCIDiE. 



20. Callichroma assimilatum, n. s. B.M. 



C. viride ; thorace vittis duabus nigro-Aaridibus velutinis ; late- 

 ribus et linea media longitudinal! transversim strigatis ; elytris 

 sutura laete aureo-viridi, vitta media longitudinali velutina ; 

 corpore subtus Isete viridi subsericeo; pedibus fuscis, femoribus 

 i-ufis. 



Allied to C. vittatum : tbe thorax has two velvety longitudinal 

 vittfe ; the sides of the thorax and a longitudinal line down the 

 middle are closely covered with transverse striae ; the scutelluni 

 is grooved down the middle and is of a golden gi-een colour ; the 

 elytra have the suture of a light silky green, in some lights 

 golden ; a dark velvety band runs down the middle ; the under 

 side is of a lively green, with a slight silken pubescence ; the an- 

 tennte are black ; the legs are blackish brown, the femora being 

 of a light ferruginous. 



Length 8 to 9^ hues. 

 Hob. Brazil, 



21. Callichroma cosMicuM,n. s. B.M. 



C. viridi-velutinum, capite, linea dorsali thoracis, suturaque 

 nitidis ; antennis nigris ; pedibus nigro-fuscis, femoribus rufis, 

 posticis apice nigris ; coqDore subtus viridi, cinereo-fusco 

 sericato. 



Head triangular elongated, grooved longitudinally down the 

 middle and punctured. Thorax nodulose on the side, a smooth 

 line down the middle. Scutellum grooved down the middle, the 

 tip transversely furrowed. Elytra with the tips divaricating, of 

 a deep velvet green, the suture light shining green and trans- 

 versely striated with a lighter-coloured line down the middle, 

 clearest at the shoulder. Under side light green, silky, with an 

 ashy grey pubescence. Femora of first two pairs of legs thick- 

 ened, rufous ; femora of hind legs compressed, basal half rufous, 

 apical blackish brown. Tibiae of hind legs compressed. 



Length 9| lines. 

 Hab. Hondm-as (Coll. Dyson). 



22. Callichroma festivum. , B.M. 



Cerambvx festivus, Fabr. S. El. ii. 2fi8. 



Oliv. Col. iv. 30. t. 7. f. 44 ; t. 18. f. 44. 

 Cerambvx festiis, Gmel. Syst. Nat. iv. 1823. 

 Callichroma festiva, Serv. Ann. Soc. Ent. Fr. ii. 558. 

 Hab. W. Africa. 



