392 Mr. H. W. Bates 07i CeramhycidcB 



2. Orthoschema cyaneum. 



Orthostoma cyanea, Pascoe, Joum. Entom. i. 62. 



" Laete caerulea, thorace luteo ; antennarum articulis 

 tribus ultimis albis." (Pasc.) 

 Long. 7-8^ lin. S ? • 



Closely allied to 0. alhicorne ; the apex of the elytra 

 is less deeply emarginate, the thorax above and beneath 

 of a bright red colour, and the elytra blue. In all my 

 examples (three), half of the eighth antennal joint is 

 yellowish-white, as well as the remaining three. 



Hab. — Ega (not Para, as stated by Mr. Pascoe) . 



3. Orthoschema Tarnieri, n. sp. 



0. alhicorni afRne ; differt an tennis totis nigris, hand 

 spinosis, elytrisque apice integris. Viridi-jeneum, infra 

 subnitidum, griseo-tomentosum ; supra capite thoraccque 

 subnitidis, elytris opacis. 



Long. 7 lin. $ . 



Hah. — Para. 



4. Orthoschema tenuicorne, n. sp. 



Parvum, paulo minus elongatum, depressum, loete 

 viridi-ffineum, abdomine rufo ; antennis tenuibus, valde 

 elongatis, haud ciliatis; thorace [S 9) antice valde 

 angustato, subtiliter confertissime transversim rugoso, 

 nitido ; elytris confertissime granulato-rugosis, apice 

 levitcr emarginatis, ad suturam dehiscentibus ; pedibus 

 nigris. 



Long. 4-5 lin. (^ ? . 



A small slender-limbed species, differing from 0. 

 rujivcntre, Germ, (a common and small species of Rio 

 Janeiro) in being much less linear in form, in the 

 thorax in both sexes narrowing greatly to the front, 

 in the long and very slender antennae, which in well- 

 developed males are three times the length of the body, 

 and also in its brighter brassy-green hue. 



Hah. — Ega. Very common on the branches of dead 

 trees, in company with numerous species of Chrysoprasis 

 of similar colour and size, from which it is re.adily dis- 

 tinguishable by the very short hind tarsi. 



