214 I'AMLLY ly. — dytiscih.t:. 



VIT. C'et.ina Au1)(\ IS.Sr;. (A proper name.) 



Elongate, glabrous, parallel species having the scutellum dis- 

 tinct; front and middle tarsi with five joints; abdomen terminating 

 in a short spine. One species occurs in the State. 



408 (1282). Celina angustata Aub6, Spec. Gen., VI. 1838, 447. 



Elongate-oblong, parallel. Browuisli-red, alutaceons. shining; elytra 1 

 disk with a blackish cloud. Thorax three times as wide as long, sides 

 feebly rounded, disk very finely and sparsely punctate with coarser imnc- 

 tures along the apical and basal margins. Elytra sparsely, finely and 

 irregularly punctate, with Iwo ov three discal rows of larger punctures; 

 their tips ending in fine points. Middle tibiie of male cuiwed and nar- 

 rowed at middle, the basal pnrtion slender, the apical much broader. Length 

 i mm. 



This is listed as a southern sx)ecies, but a single specimen was 

 taken in Lake County, on the shore of Lake iMichigan. and another 

 in Kosciusko County. June 9-Aiigust L 



VIIL CcELAMBUS Thorn. LSHO. ((^r., "swollen + belly.") 



To this genus belong a number of small, oval or rounded beetles, 

 convex beneath (w^hence the generic jiame), and in color either 

 brown or pale with black markings. All are devoid of pubescence, 

 possess the elytral ligula above mentioned and have the humei*al or 

 basal portion of the epipleuni; limited behind by a well-mai'kcd line. 

 Seven species are known from Indiana.. 



KEY TO INDIANA SPECIES OF CCELAMBC^S. 



(/. Front of head with a fine but distinct raised margin, the labrum mucli 

 concealed; under surface of body very convex, usually light brownisih- 

 yellow. 

 h. Elytra without either distinct blackish spots or a carina on the sides, 

 very coarsely and regularly punctured. 401). in.^qualis. 



bb. Elytra each with three or four black spots, and with a carina on the 

 side, the punctures much finer. 410. acaroides. 



(Id. Front of head without margin, the labrum little concealed; under sur- 

 face of body less convex, wholly or partly black. 

 c. Elytra without impressed lines ; smaller, 2.5-4.5 mm. 

 fl. Elytra nearly uniform dark reddish-brown, usually with fine and 

 coarse lanicturcs intermingled. 

 e. Smaller, not over :; mm. 



f. Abdomen wImiIIv hlack ; sides of hind coxae very coarsely and 



sparsely ])unctate. 411. turbidus. 



//. Abdomen in part or wholly pale; sides of liind c-oxse finely 



pnncfate. 412. iaccophilinus. 



ee. Larger, :!.n 4 mm.; .-ilidomen and nietasternum as in hubUlus. 



41.">. UISSIMILIS. 



