BEETLES. 141 



composed of only eleven filiform joints, and are not longer 

 than the body. They live on trees. 



P, hoehleri, Fabr. (Plate XV., Fig. 6). Pronotum entirely 

 black, or black with a larger or smaller yellow spot on each 

 side. The larva lives in diseased apricot-trees. It is a native 

 of Southern Europe. 



Genus Eosalia, Serv. 

 Antennse eleven -join ted, setiform, slightly longer than the 

 body in the females, but much longer in the males, with tufts 

 of hair. 



R. alpina, Linn. (Plate XV., Fig. 7). This beetle is covered 

 with fine bluish-grey pubescence with black spots. It lives on 

 beech-trees, and the larva in the wood. It is found in 

 mountainous districts in several countries on the Continent. 



Genus Aromia, Serv. 

 Antennse eleven-jointed, setiform and bare, longer than the 

 body in the male, but shorter in the female. The only species 

 is common on willows. 



* A. moschata, Linn., the Musk Beetle (Plate XV., Fig. 8). 

 This beetle is blue, green or coppery, very closely and finely 

 punctured. It emits a strong smell of musk, and may 

 frequently be found crawling on decaying willows. 



Genus Callidium, Fabr. 

 Antennae eleven-jointed, filiform or setiform. Eyes strongly 

 emarginate. Pronotum roundish. The femora are expanded in 

 a club-like manner. These beetles are found on flowers and 

 tree-trunks, and the larvse on old tree-stumps. 



* G. violaceum, Linn. (Plate XVL, Fig. 1). This is light 

 blue, violet, or greenish-blue above, darker beneath, with black 

 legs and antennte. It is found under the bark of pine and alder. 



