of the Amazon Valley. .251 



cera ; elytris rutb-castaneis opacis sericeis, nigro margi- 

 natis. AntennEe c? corpore sesqui longiores, articulo 

 basali apice infra tuberculo acuto armato, articulis 3-10 

 apice spinosis, $ similes sed paulo breviores. 



Long. 1 un, 3 lin. c^" ? . 



Hah. — Amazons ; generally distributed. 



3. Hammaticherus glahricollis, n. sp. 



Brevior^ niger, nitidus^ subtus (cum pedibus) cinereo 

 leviter tomentosus ; capite glabro, grosse punctato ; 

 thorace rugis latioribus circiter 10 subinterruptis fundo 

 sparsim punctatis, omnino glabro ; elytris apice angustiori- 

 bus, truncatis, bispinosis^ sjjina suturali multo breviori, 

 supra crebre punctulatis punctis majoribus interspersis, 

 fulvo-castaneis nigro-marginatis. Antenufe c? cor- 

 pore sesqui longiores^ articulo 4to precedente dimidio 

 breviorij articulis 5-10 apice infra productis_, acutis baud 

 spinosis. 



Long. 8 lin. S . 



Hah. — Ega; one example only. 



4, Hammaticherus macrus, u. sp. 



Magnus, thorace parvo, spinis lateralibus obtusis ; ely- 

 tris amplis, medio leviter dilatatis, apicem versus rotun- 

 datis, prope suturam oblique truncatis et bidentatis ; 

 omnino cinnamomeus fulvo-tomentosus ; oculis supra 

 distantibus; tuberculis antenniferis supra dentatis, an- 

 tennis ( ? ) corpore mvilto brevioribus, articulis 3-10 apice 

 infra mucronatis vel dentato-productis ; thorace rugis 

 medianis interruptis ; elytris subopacis, subtiliter punc- 

 tulatis. 



Long. 2 un. ? . 



Of much less cylindrical form than the other species ; 

 head narrower than the thorax, and the latter only half the 

 width of the elytra. The elytra are far from being parallel 

 sided, and are somewhat dilated about the middle of their 

 length, and broadly rounded towards the apex ; in con- 

 sequence of this form, the apical truncature is confined 

 to a small portion of the apical margin near the suture, 

 and the exterior spine is placed about the middle of the 

 apex; the sutural spine is very small. The colour of the 



