EUPLECTUS. 351 



viated central furrow ; elytra with an abbreviated dorsal 

 stria, reaching middle ; antennae somewhat pilose at apex, 

 last joint oval. L. | 1. Not common. E. nanus, Eeich. 



h b. Head without depression on vertex. 



Pitch-black. Dorsal stria on elytra reaching nearly to 

 middle. Like E. nanus but more elongate, with longer 

 and more slender antennae ; eyes larger and more promi- 

 nent ; vertex of head without depression. L. f 1. Rare. 



E. nigricans, Chaud. 



II. Elytra with dorsal stria indicated oidy by a 

 depression at base. 



Pitch-black ; antennae lighter at base, legs brown. Al)- 

 domen suddenly narrowed and pointed at apex, segments 

 about equal in length. L. f 1. Not very common. 



E. amhiguus, Reich. 

 h. Head much narrower than thorax ; base of latter 

 with three depressions, but without transverse im- 

 pression. 



Pitch-black ; antennae and legs lighter. Dorsal stria on 

 elytra reacliing about to middle ; al)domen gradually nar- 

 rowed and rounded at apex, first segment longest. L. f 1. 

 Rare. E. hicolor, Den. 



Trimium. 



A. Body pitchy-red, abdomen darker ; eyes small. 



Oblong, shiny, with very scanty pubescence ; antennae 

 and legs red-yellow. Elytra truncate at apex. L. f 1. 

 Rare. T. hrevicorne, Reich. 



J?. Body red-yellow ; eyes very small. 



Oblong, shiny ; with very scanty pubescence. Elytra 

 somewhat emarginate at apex. L. scarcely | 1. Rare. 



T. hrcvipennc, Chaud. 



CIA riGEBIDES. 



Mandibles short; maxillary palpi with only one dis- 

 tinct, curved joint, with one or two bristles at apex ; labial 

 palpi with two joints. Tarsi with only one claw ; first two 

 tarsal joints very small. Claviyer, Preyssl. 



