Coleopferological Notices. 103 



the apex of the prosternal process, Olibrus again resembles Phala- 

 crus and differs correspondingly from Stilbus. In fact the resem- 

 blances of Olibrus to the latter genus must be regarded as in great 

 part superficial. 



Our species are very much less numerous than those of the Euro- 

 pean fauna, but the very limited number which we possess are more 

 heterogeneous, and this opinion is strengtljened by the characters 

 assigned to the Central American forms by Dr. Sharp. Our species 

 are in fact divisible into two groups of subgeneric importance, only 

 one of which appears to be represented in the European fauna. 



I. 



Elytra with two discal strice. 



Elytra maculate, vitiate or differing in color from the pronotum. 



Black, elytra with two oval rufous spots near the apex L<eContei 



Elytra paler, castaneous, each with a broad ill-defined flavate vitta ; pro- 

 thorax concolorous vitta tus 



Elytra pale, a suffused lateral, and a more distinct sutural, vitta blackish ; 



head and pronotum piceous-black Iligricollis 



Elytra imicolorous. 



Elytra without impressed lines accompanying the series of punctures ; 

 surface without trace of reticulation, perfectly polished throughout. 



pallipes 



Elytra with very finely, feebly impressed lines. 



Impressed lines stronger and more evident ; elytra polished, finely granu- 



lato-reticulate only at the immediate apex semistriatus 



Impressed lines very feeble ; elytral reticulation finer, more longitudinally 

 aciculate, present at the sides and toward apex. 

 Form evenly elliptical, more convex, not attenuate behind ; impressed 



lines almost obsolete neglectUS 



Form more narrowly oval, attenuate behind, less convex ; impressed 

 lines fine but somewhat distinct rufipes 



II. 



Elytra with a single discal stria.^ 



Narrow, densely aciculato-reticulate Wicktiaini 



O. LiCContei n. sp. — Rather broadly oval, just perceptibly attenuate 

 behind the middle, strongly convex, highly polished, black above, with a very 

 clearly-defined elongate-oval spot of bright rufo-testaceous from the middle of 

 each elytron nearly to the apex, approaching but not attaining the suture ; 



1 Olibrus bisignatus Boh., of the Cape of Good Hope, also belongs in this 

 group ; it almost perfectly resembles LeContei in form and coloration, but is 

 very densely reticulato-granulose throughout. 



