Coleop tera- Lamellicorn la. 175 



S ' Tibiis anticis valde elongatis, intus ciliatis, ante 

 medium dente acuto armatis, intermediis calcare ex- 

 teriore dilatato-liamato ; tliorace antice carina curvata. 



Long. 11 lin. 



Hab. — Equador: prope Cuencam. 



I append descriptions of several new species of Co- 

 pridce in my collection, chiefly from the Amazons. 



Gen. Gkomphas. 

 Gromphas amazonicus, n, sp. 



Niger, casruleo vel viridi-tiuctus, nitidus ; capite crebre 

 subtiliter rugoso-punctato, clypeo obtuse sex-dentato, 

 fronte carina curvata medio magis elevate ; thorace 

 medio antice leviter elevate, subtiliter granulate, medio 

 Icevi, margine ante scutellum foveolis duobus obsoletis ; 

 elytris subtiliter punctato-striatis, interstitiis vix distincte 

 punctulatis, basi hand depressis. 



Long. 7 1 lin. Lat. elytr, 4^ lin. 



Hab. — Upper Amazons, Ega, St. Paulo, and Pebas. 



Differs from G. inemiis (Harold) in the more rounded 

 outline, the elytra especially bulging towards the middle 

 and narrowing thence to the apex, differently from G. 

 inermis, in which they are nearly parallel. It is also 

 distinguished by the distinctly marked stride of the 

 elytra, the smoother disc of the thorax, and more polished 

 surface altogether. I do not find any sexual difference 

 in the four specimens I possess ; all have the spur of 

 the anterior tibiae obliquely truncate, and produced at 

 the inner apex. 



Obs. — Lacordaire describes Gromphas as having minute 

 claws to the four hinder tarsi. I do not find in any of 

 the three species I have examined any trace of claws ; 

 the terminal joint ends in a curved spine, but there are 

 no true claws. The allied South American genus Bolbites 

 has distinct claws. 



Gen. Deltochilum. 

 1. DeltocMhim tessellatum, n. sp. 



Oblongum, viridi-cyaneum, vix nitidum ; capite lato, 

 clypeo medio dentibus duobus acutis modice inter se 



o 2 



