of the Amazons Valley. 179 



culis ovatis, obliquis et postice elevatis ; thoracis tuberculis latera- 

 libus elongatis, fronte magna, latissima, nuda, punctulata. Long. 

 15 lin., lat. capitis 4^ lin. $. 



Head brown ; front naked, coriaceous, punctured, black ; eyes 

 moderate, reaching little more than halfway down the forehead; 

 vertex very convex. Antennas rather shorter than the body ( $ ), 

 tapering to the apex, basal joint curved ; colour brown. Thorax 

 twice as broad as long, a little narrowed behind the lateral tu- 

 bercles, which are long and spiniform ; surface dull ashy brown, 

 with a central transverse black line. Elytra massive, narrowed 

 to the apex, convex, especially in the middle of the basal part on 

 each side ; shoulders prominent and oblique, with a conspicuous 

 tubercle at their hinder angles ; colour ashy brown, paler near 

 the middle, and covered with small, oblong, raised, scale-like 

 tubercles, which are very crowded and strongly elevated at their 

 posterior ends near the base, much scattered and very slightly 

 elevated near the middle, and arranged in rows, simply as spots, 

 near the apex. Body beneath ashy white; legs ashy brown. 



Ega*. 



Genus Eudesmus, Serville. 



Serville, Ann. Soc. Ent. Fr. iv. (1835) p. 82. 



This well-marked genus resembles Oncideres in its cylindrical 



form of body. Its distinguishing character is derived from the 



bulbous ovate shape of the third antennal joint in the male. 



* The following new species have lately been received from entomological 

 travellers in South America : — 



Oncideres limpidus. Cylindrieus, fusco-nitidus ; elytris fulvo-ochraceo 

 irroratis. Caput ( $ ) modice angustatum, fronte punctata, ochracea, 

 vitta infraoculari nigra; tuberculis antenniferis intus prominulis, 

 acutis. Antennae corpore longiores, nigra; nitidse; articulo basali 

 distincte clavato, articulis tertio et quarto infra dense ciliatis. Thorax 

 postice angustatus, tuberculis lateralibus modice productis, nigris ; 

 supra ochraeeo-brunneus, linea nigra transversa, ante medium fascia 

 rufo-fulva. Elytra cylindrica, fusco-nitida maculis numerosissimis 

 discretis tomentosis ochraceo-fulvis ; juxta basin tuberculis globosis 

 paucis ; deinde leviter granulata, humeris confertim tuberculatis. 

 Corpus subtus fulvo-tomentosum. Pedes nigricantes, femoribus 

 fulvo tomentosis. Long. 10 lin. $ . Hab. in Bahia Brasilia), a Dom. 

 Reed lecto. 



Oncideres Bouchardii. Cylindrieus, cano-griseus ; elytris nigro punc- 

 tatis et maculis majoribus rotundatis fulvis sparsis. Caput latum, 

 griseum, maris paulo angustius, tuberculis antenniferis intus vix pro- 

 minulis. Antennae grise;e ; articulo basali gradatim incrassato, nigro, 

 maris valde rugoso. Thorax griseus, linea transversa nigra. Elytra 

 convexa, vage punctata, cano-grisea, maculis rotundatis carneo-fulvis 

 conspersa, punctis nigris; prope basin tuberculis numerosis globosis. 

 Corpus subtus pedesque cano tomentosa. Long. 10-11 lin. $ %, 

 Flab, in Sta. Martha Nova; Granatse, a Dom. Bouchard copiose missus. 



13* 



