L\iitlwrrlujncltus.~] RHYNCHOPHORA. 343 



the tooth ohsolete in the male ; elytra black- 

 blue or slaty C. HIBTULTJS, Germ. 



2. Elytra with scales, or hairs (recumbent or rarely 

 raised), forming at least two rows on each 

 interstice. 



A. Ehtra with raised pubescence, visible if 



viewed sideways. 



a. Base of thorax almost straight ; pubescence 

 of elytra even, coarse and very distinct, 

 brown with a white scutellary patch and 



some white dots on the elytra C. PiLOSELLUS, Gyll, 



b. Base of thorax bisinuate produced towards 



scutellum. 



a*. Clothing of elytra very distinct, in part con- 

 sisting of brownish-white scales; general 

 colour brownish C. Q0ADBIDBNS, Pan:. 



b*. Clothing of elytra not distinct unless 

 viewed sideways, consisting of fine pubes- 

 cence ; general colour black C. PICiTABSis, Gyll. 



B. Elytra with t,he clothing variable, but always 

 recumbent, and not, or scarcely, visible if 



viewed sideways. 



a. Elytra metallic blue with a white spot at 



base of suture C. SUHTEELLUS, Gyll. 



b. Elytra not metallic. 



a*. Elytra with fine but very distinct white 

 stripes along certain of the stria?, which 

 are also present on thorax, and with 

 oblique white stripes across some of the 

 interstices, forming a pattern ; size large. C. GEOGRAPHICUS, Goeze. 



(echii, F.) 

 b*. Elytra without white stripes on the 



stria? ; interstices variably coloured, 

 a-f-. Ninth interstice furnished with a row 

 of warty prominences reaching to 



shoulder C. POLLIXABITTS, Font. 



b-f-. Ninth interstice resembling the others. 

 a{. Elytra without a light patch at 



scutellum. 



*. Outer margin cf tibiae before apex 

 with a projecting tooth followed 

 by a brush of bristles reaching to 

 apex ; elytra usually with a white 

 patch on each side towards middle 



of margin C. VEDTrATT/s, Gyll. 



**. Outer margin of tibia? either 



simple or furnished with bristles 



before apex but not toothed. 



f. Central furrow of thorax fine ; 



scales of elvtra tine, subrotund- 



ate C. AyGTTLOSUS, Soh. 



t+. Central furrow of thorax 

 deep ; scales of elytra fili- 

 form. 



J. Thorax almost glabrous ; 

 anterior femora with a 

 small tooth-like fascicle. 



