J3EETLES. 119 



Genus Pyeocheoa, Fabr. 

 Body angularly expanded behind the eyes. Eyes kidney- 

 shaped. Antennae with eleven joints, serrated; each joint 

 from the third to the extremity expanded into a projection. 

 They frequent shady, grassy places. 



* P. coccinea, Linn. (Plate XII., Fig. 22). The front of 

 the head has a quadrangular depression, rounded behind, 

 and sharply bordered in the male. The beetle is found in 

 birch, walnut, and pine trees, Under the decaying bark. 



* F. ruhens, Fabr. (Plate XII., Fig. 23). This species is 

 smaller than the foregoing, with a deep lunulated depression. 

 The pronotum has a fine median furrow. It is found under 

 the bark of oaks, beeches, and willows, and is much commoner 

 than coccinea. 



Family XXXVII. MORDELLIDJE. 



Pronotum narrow in front, but as broad as the wing-cases 

 behind. Head attached by a neck. Wing-cases attenuated 

 behind, leaving the extremity of the body exposed. Anteunie 

 filiform. They are met with on flowers. 



Genus Mordella, Linn. 

 Abdomen drawn out into a point. Claws serrated and 

 dentated. They live on flowers and decayed wood, and are 

 very quick and agile in their motions. 



* M. fasciata, Fabr. (Plate XII., Fig. 24). Antennae serrated, 

 with the basal joints yellowish-brown. Elytra black and thickly 

 pubescent, with grey bands. It is found on flowers. 



Family XXXVIIL RHIPIDOPHORID^. 



This family resembles the last, but the antennae are strongly 

 serrated, pectinated, or fan-like. Some of them are parasitic 

 on Hymenoptera. 



