THE MINUTE BROWN SCAVENGER BEETLES. 657 



face witliout cai'iiur and disk with a disliiict i-diiiidcd or transverse 

 fovea lu'1'oi-c llic liasc; elytra eacli with ei^'ht rows of punctures 

 wliieli are iiiotU'rately lariic toward the base but become finer api- 

 eally. The niah's liave thi> tirst joint of the front tarsi distinctly 

 dilated. Of tlic 26 species of the genus listed from the United 

 States, tlie Tollowinij: have a ran^re which may include Indiana: 



KIi;Y to INDIANA SPECIKS OF COUTICAIUA. 



a. Pubescence more conspicuous, the hairs of elytral intervals longer, more 

 erect and bristling tluin liiose of the strine; middle coxtc separated 

 by less than one-third their own diameters; form moderately convex. 

 b. Punctures of stri:c and intervals not very different in size, somewhat 

 confused; front .'uul middle til)!;!? of male not bent at tip; length 

 2.3-3 mm. pubescens. 



bh. Punctures of elytral intervals distinctly finer than those of striai, 

 not confused; front and middle tibitc of male bent and mucronate 

 on the inner side at tip. 

 e. First joint of autennal club not distinctly longer than wide; tho- 

 rax cordate; color pale brownish-yellow; length 1.7-2 mm. 



FULVA. 



cc. First joint of club distinctly elongate; thorax feebly cordate; color 

 piteous brown, the elytra often paler; length 2.1-2.3 mm. 



VARICOLOU. 



(/(/. I'ubesconre shorter, more appressed and uniform; middle coxse sepa- 

 rated by nearly one-half their own diameters ; form often depressed. 

 (/. Metasternum subequal to or shorter than first ventral ; joints of an- 

 tennal club all longer than wide; thorax without fovea; length 

 2.3-2.G mm. valida. 



lUl. Metasternum distinctly longer than first ventral. 



e. Size larger, 2-2.5 mm. ; sculpture of both upper and lower surface 

 coarser and closer ; margin of thorax distinctly serrate. 



1260. SERRATA. 



ee. Size smaller, always less than 2 mm. 



f. Fifth ventral segment not longer than fourth, the sixth usually 

 distinctly visible; last three joints of antennal funicle trans- 

 verse. BREVICOUNIS. 

 //. Fifth ventral at least one-half longer than fourth, the sixth not 

 visible; outer joints of funicle not evidently transverse. 

 g. Color yellowish to dull reddish-yellow; elytral intervals with 

 a single regular row of punctures. 1261. elongata. 

 gg. Color reddish-brown; elytral intervals more or less irregularly 

 punctulate; form less parallel and less depressed. 



1262. FERRUGINEA. 



C. piihescens Gyll.. fuscous to fuscous-yellow in hue, is Imown 

 from Michigan and northern Illinois; C. fulva Com., is recorded 

 from Kentucky and ^liclii.oan ; (J. varicolor Fall was described from 

 Michigan, Dakota and westward; while (\ ralUld Fall has been 

 taken in northern Illinois. 



