44 GEODEPIIAUA — CAHABIDAE. 



Antennae, palpi and le;4S red. Tliorax slightly con- 

 tracted in front, basal impressions tolerably conspicuous, 

 posterior angles sharply right angled, the extreme lateral 

 margins generally reddish, especially behind ; elytra 

 tolerably parallel-sided, with rather strong, impunctate 

 striae, the third interstice with two impressions, one rather 

 before middle near the third, and the other in the middle 

 of the hinder half near the second stria. L. 4 — 5 1. liather 

 common. C. flavvpes, Fourc. 



II. Body Ijlackish-brown ; winged. 



Broader in proportion than C. Jlavijjcs, antennae, palpi, 

 and legs yellowish-red. Thorax broader at base than in 

 front, all the margins reddish, basal impressions indistinct, 

 posterior angles slightly acute ; elytra almost oval, with 

 fine striae, third interstice with two impressions as in 

 C . flavipes. L. 4| — 5 1. Common. C. fitsciis, Fab. 



h. Thorax distinctly narrowed behind ; insect apterous. 



I. Thorax with narrow side borders, not bent uj)ward 

 behind. 



1, Posterior margin of thorax slightly sinuate. 



Brown, with a reddish margin to thorax and elytra ; 

 antennae, palpi, legs and reflexed margin of elytra pale 

 reddish-yellow ; under-side l)rown-red, abdomen darker. 

 Thorax almost quadrangular, basal impressions shallow, 

 posterior angles right angles but not sharp ; elytra with 

 very fine striae, third interstice with three (rarely four) 

 impressions, two near the third and one near the second 

 stria. L. 3 — of 1. Conmion. C. mollis, Marsh. 



2. Posterior margin of thorax straight. 

 A A, Thorax red. 



Head black or blackish; antennae, paljji, and legs 

 reddish-yellow ; thorax red, almost (piadrangular, posterior 

 angles right angles but not sharp ; elytra black-brown, the 

 outer margin usually and the reHexed margin always red- 

 dish ; with fine striae, third interstice with three (rarely 

 four) impressions, two near the third and one near the 

 second stria ; breast reddish, abdomen blackish-brown. 

 L. 3 — 3? 1. Connuon. C. melanocei^lialus, Lin. 



The variety iiuhiijcna, Hal., is darker, the antennae 

 reddish at tlie base only, the thorax blackish on disc or 



