142 BEETLES. 



* C. sanguineum, Linn. (Plate XVI., Fig. 2). Eed, with a 

 velvety surface. It is found on beech, hornbeam, oak, and 

 chestnut trees. It is excessively rare in Britain. 



C. unifasciatuvi, Fabr. (Plate XVI., Fig. 3). Pteddish- 

 brown, the hinder portions of the elytra darker, with a white 

 transverse band. It is a South European species. 



C. rufipes, Fabr. (Plate XVL, Fig. 4). Dark blue and 

 hairy, with the under surface blackish. The base of the 

 antenn£e and the lecjs are orancre. It is found in Southern 

 Europe and in South Central Europe. 



* C. I'ariabile, Linn. (Plate XVL, Fig. 5). This species is 

 either uniform blue, or blue with an orange pronotum. It is 

 found under the bark of beech, oak, or willow. It is rather rare. 



Genus Hylotrupes, Serv. 



Elytra flat, broad, and, like the pronotum, covered with 

 scattered grey specks. Antennae filiform and as long as the 

 body in the males, but shorter in the females. The only 

 British species is: 



* H. bajulus, Linn. (Plate XVL, Fig. 6). This beetle is pitchy- 

 black or brown, with a few lighter spots of thick hair in fresh 

 specimens. It is common in old deal, in fittings, and in posts. 



Genus Tetkopium, Kirby. 



Antennae setiform, half as long as the body. Elytra broader 

 than the pronotum. Femora much thickened. It is found on 

 the trunks of trees. 



T. luridum, Linn. (Plate XVL, Fig. 7). This species is 

 covered with fine grey pubescence. The pronotum is rather 

 shining. It is common in various parts of the Continent in 

 the trunks of fir and pine trees. 



