AKOMIA. 317 



Aromia, 



Bluish-green or coppery-green. Elytra extremely closely 

 and finely wrinkled, with two slightly raised lines. L. 10 

 — 15 1. Common. A. moschata,lAn. 



JPBIOJSriDAB. 



Antennae shorter than body, stout, pectinate or imbri- 

 cate, rarely sawlike in male ; thorax very transverse. 



Pr tonus, Geoffr. 



JPrlomis. 



Pitch-black ; under-side brown ; breast covered with gray 

 pubescence. Thorax with three teeth on each side ; elytra 

 punctured in wrinkles, with three indistinct raised lines ; 

 elytra of male distinctly twelve-jointed, of female eleven 

 jointed. L. 12 — 18 1. Not common. 



P. coriarius, Lin. 



HETEEOMEEA. 



A* Socket holes of anterior coxae closed behind, with 

 either anterior coxae not contiguous or tarsal claws 

 comblike. 



a. Tarsal claws simple. 



Mentum placed in an emargination or carried by a 

 peduncle of submentum ; ligula hidden or not, paraglossae 

 present ; maxillae with inner lobe smaller than outer, often 

 ending in a horny hook ; eyes generally emarginate ; an- 

 tennae inserted under a frontal projection ; coxae not con- 

 tiguous, anterior pair globular; sometimes slightly trans- 

 verse. Tenebrionidae. 



b. Tarsal claws comblike. 



Mentum carried by a peduncle of submentum ; ligula 

 prominent, paraglossae rather indistinct ; maxillary lobes 

 fringed; eyes nearly always emarginate, sometimes ap- 

 proximated above ; antennae with base free or only slightly 



