94 Mr. D. Sharp's Conti-ihutions to the 



the 11th joint large, stouter than the 10th, and about 

 twice as long. Head broad and short, black and shining, 

 extremely finely, ahnost imperceptibly, punctured. Thorax 

 pitchy, })aler at the sides, narrowed towards the front, the 

 base slightly sinuate on each side, the hind angles rounded 

 and projecting a little backwards ; it is very finely and 

 indistinctly punctiu-ed. Scutellum large, smooth and im- 

 punctate. Elytra fully a third longer than the thorax, 

 straight at the sides, the outer angle not much rounded ; 

 they have a deep, narrow channel close to the external 

 margin, extending fi-om just l)elow the humeral angle to 

 the extremity ; they are finely piuicturcd, but more dis- 

 tinctly so than the thorax. Hind body rather closely and 

 distinctly punctured; segments 2 — 5 distinctly margined, 

 6th and 7th immarginate. Legs yellowish, short ; meso- 

 thoracic carina but little ]:)rominent. 



In the female the dorsal plate of, the 7th segment ends 

 in four stout but long acuminate spines ; these project 

 about equally far back ; the notches between them are 

 only narrow, but are elongate ; the lateral ones reach a 

 little farther fonvards than the middle one ; the ventral 

 plate ends in fovu* shorter and more Avidely-separated 

 spines ; of the notches between these the middle one is 

 not deep, but the lateral notches extend considerably 

 farther forwards than the middle one. 



Ega ; a single individual. 



CONURUS. 



The Tachyporini bearing this name are very easily 

 recognized from the fine, delicate pubescence with which 

 all the parts of the body are clothed. Species of the 

 genus are probably to be foimd in nearly all countries, 

 and, though only five species have yet been described 

 from South America, there is but little doubt that these 

 insects will be found to be numerous there, for I have 

 nine species from the neighbourhood of liio de Janeiro 

 alone in my collection. 



1. Conuruslatus,u.%\). Ferrugineus, convexus, pube- 

 scens, antennis articulis 5 — 10 nigris, idtimo pallido basi 

 nigro. Long. corp. 2\ lin. 



A broad species, very convex about the thorax and 

 elytra, with the exception of the antenna3 of an uniform 

 tawny coloiu*. The antenniu moderately long, thickened 



