70 BEETLES. 



leneath. The larva lives in oak, pine, and beech, and the 

 beetle is already formed in the autumn. It remains, however 

 in its pupa-case during the whole of the winter. In the spring 

 it feeds on the buds of trees. 



Genus DoRCUS, MacLeay. 



Sixth abdominal segment not visible. The eyes are almos^i 



divided by the frontal border. The inner lobes of the 



mandibles have a horny tubercle in the females. They 

 frequent woods. 



* D. parallelopipedus, Linn. (Plate YII., Fig. 4). This species 

 is dull black, with the head and pronotum finely and sparingly 

 punctured. The larvae live in old decaying beech and walnut 



trees. 



Genus Sinodendron, Fabr. 



Thorax fitting closely to the base of the elytra. Antennce 

 short, with three joints to the club. The maxillai are short and 

 do not project. The body is cylindrical. 



* S. cylindricum, Fabr. (Plate VIL, Fig. 5). Shining black, 

 with the elytra sometimes brownish and the abdomen not 

 infrequently brown. The pronotum has the angles rounded 

 off with live teeth in the males, and in the female it is only 

 indented in front, and slightly toothed. The horn on the head 

 is small and straight in the female, but long and recurved in 

 the male. The larva lives in the rotting trunks of trees, 

 especially the beech. 



Family XXIII. 



SCARABiEIDJE or LAMELLIOORNES (Chafers). 



Antennie short, with from seven to eleven joints, the first 



being large, and the last joints being expanded and forming a 



lamellated club. The legs are formed for di^no:. This is a 



oo' 



