334 Mr. H. W. Bates on Cerambycidce 



more robust, and the tarsi much broader. The head, 

 thorax, and scutellum are of a beautiful violet colour, 

 and the ground-colour of the elytra is of greenish-blue 

 metallic lustre graduating into violet on the sides. 



Ilah. — Manaos, liio Negro. 



One example only. 



3. CalUchroma hrachiale, n. sp. 



C. vittato* (Fabr.) aflBne ; subtus viridi-aeneum, argen- 

 teo-griseo-sericeum ; supra capite et thorace cyaneis 

 splendidis, hocmaculis duabus velutinis violaceis; scutello 

 viridi-reneo, splendido ; elytris nigro-velutinis, apice vio- 

 laceis, sutura angusto vittaque discoidali a huniero in- 

 cipiente viridibus ; pedibus nigris, femoribus quatuor 

 anticis rufis, basi et apice fuscis, tibiis posticis ^ ut in 

 C. vittato compressis at minus dilatatis. 



Long. 13 lin. S . 



Ilah. — River Japura, near Ega. 



One example. 



4. CalUchroma rugicolle. 



C. rugieolUs, Guerin, Icon. 11. A. iii. 220. 

 C. assimilatum, White, Cat. Longic. Brit. ^fus. p. 158. 



I can perceive no difference between Para specimens 

 of White's C. ass'imiJatum and Mexican examples of C. 

 rugicolle. The species belongs to the group in which 

 the hind tibia) are only very slightly and very gradually 

 dilated from base to apex. The colour is a brilliant 

 metallic-green, silvery-gray-tomentose on the under 

 surface, marked on the thorax with two short velvetty- 

 black vittae, and on the elytra by a similar vitta, extend- 

 ing from the middle of the base very nearly to the apex ; 

 the sides of the elytra become gradually darker green 

 and velvetty. The thorax is crossed throughout by fine 

 rugSB, and the antcuniferous tubers are longitudinally 

 rugose. All the thighs are tawny-red. 



* C. vittatum, described by Fabricms from Banks' collection, is a 

 common Smitii 13riizilian insect, baviug the thighs red, the nuder-burlace 

 clothed with golden tonientum, and the snture generally with a golden 

 tinge : the hind tibiir are only slightly and gradually dilated (mm base to 

 apex. 



