208 • I November, 1910 



I. Tarsi linear. 



i. 8th joint of antennae not or scarcely narrower than 9th ; tliorax as broad 

 as elytra, and about as strongly pimctixrcd ; form long oval . . . 



C. viennense, Herbst. 



ii. 8th joint of antennae distinctly narrower than 9th ; thorax broader than 

 elytra, and more strongly punctured ; form shorter, oval . . . 



C. serrix>es, Sahib. 



II. Tarsi dilated, more strongly in male. 



i. Form much broader ; border of elytra near base broad and distinctly 

 visible from above C. latxim, Kr. 



ii. Form longer, oval ; border of elytra much narrower, and not or scarcely 

 visible from above. 



1. 8th joint of antennae obviously narrower than 9th ; thorax aboiit as 



long as broad, deeply and closely punctured, more strongly 

 than elytra C. angulare, Er. 



2. 8th joint of antennai' as broad as, or scarcely narrower than, 9th ; 



thorax distinctly transverse. 



A. Thorax more strongly puuctiu-ed than elytra. 



a Last joint of club of antennaj scarcely narrower than the 

 penidtimate ; thorax deeply and rather diffusely punc- 

 tured ; sutural stria, towards the base, deep and 

 strongly sinuate ; foi'm elongate and parallel-sided... 



C. rufescens, Kr. 



b. Last joint of club of antennae distinctly narrower than 

 penultimate ; sutural stria, towards the base, evanes- 

 cent and almost straight. 



a*. Form parallel-sided ; punctuation fine ; pubescence very 

 fine and dense ; sides of thorax slightly sinuate 

 before posterior angles C. dentipes, Sahib. 



b*. Form fusiform ; punctuation stronger ; pubescence longer 

 and coarser ; sides of thorax not sinuate, posterior 

 angles blunter. 



ftf. Outer border of anterior tibiae straight, simply right- 

 angled at apex; thorax rather dull ...C. zebei, Kr. 



bf. Outer border of anterior tibiae distinctly ciu'ved, ending 

 in a small shai-p projecting tooth or very acute 

 angle ; thorax shining C. hrunneum, Latr. 



B. Thorax very fuiely and not more strongly punctured than 



elytra. 



a. Elytra more evenly roiinded at sides, broadest about the 



middle, without traces of striae ; colour dark brown ; 

 length, 1-8 to 2-2 mm C. denticulatum, Kr. 



b. Elytra broadest near the base. 



a*. Size larger, length, 2 to 28 mm. ; colour generally dark 

 brown; elytra with slight traces of striae... 



C. appendiculatum, Kr. 

 b*. Size smaller, length, 1'5 to 1'8 mm.; colour testaceous or 

 reddish-brown; elytra without traces of striae... 



G. calcaratum, Er, 



