CEBRIO. INSECTS. 265 



E. ruficollis, Lin. Shining black, with the posterior half of the 

 thorax red. 3 lines long. Northern Europe. Oliv. Col. vi. 61. 



2. M. ALA C ODERMI. 



Body generally flexible, inclined forward, with the head low or 

 much sloped, and free ; posterior extremity of the pre-ster- 

 num not much prolonged. 



TRIBE III. CEBKIONITES. 



Mandibles terminated in a simple point, without notches or teeth ; 

 palpi filiform, or slender at their extremity ; body arched or 

 gibbous above, oval, oblong, or hemispherical. 



I. Mandibles projecting or discovered; maxillary palpi filiform, or clavate, termi- 

 nated by a truncated or obtuse joint ; body oval or oblong. 



1. Joints of the tarsi entire; antennae simple or serrated, sometimes short and cla- 

 vate in the females, and with never beyond eleven joints. 



Gen. ANELASTA, CEBRIO, SANDALUS. 



2. Penult joint of the tarsi bilobed ; antennae in many flabelliform or pectinated, and 

 composed sometimes of twenty joints and upwards. 



a. Antenna? of the males flabelliform or pectinated. 



Gen. RHIPICERA, (Polytomus^ Dalm.); PTILODACTYLUS. 



b. Antennse simple. 



Gen. DASCILLUS. 



II. Mandibles slightly or not apparent ; maxillary palpi pointed ; body almost hemi- 

 spherical or short oval, gibbous. 



Antennae simple, of eleven joints. 



1. Penult joint of the tarsi bilobed. 



Gen. ELODES, SCYRTES. 



2. Joints of the tarsi entire. 



Gen. NYCTEA, EUBRIA. 



Gen. CEBRIO, Oliv. 



Antennae filiform, of eleven joints, serrated at the interior angle 

 of the extremity ; short and club-shaped in the females. 



C. lojigicornis, Fab. Blackish, pubescent, with the elytra, abdo- 

 men, and thighs light brown ; antennae longer than the body. 

 Nearly one inch long. Southern Europe Lat. Gen. i. 251. 



Gen. SANDALUS, Knoch. 



Antennae filiform, short, serrated, inserted under a protube- 

 rance before the eyes, and composed of eleven joints ; palpi 

 short and terminated by an oval joint ; body oval, oblong. 



S. niger, Knoch. Body entirely black, with the exception of the 

 tarsi, which are pale brown ; elytra with three hollow markings. 

 Nouv. Diet. xxx. 123. 



Gen. RHIPICERA, Lat. Ptilinus, Fab. 

 Antennae flabelliform or pectinated in the males, and composed 

 sometimes of upwards of twenty joints ; penult joint of the 

 tarsi bilobed. 



