BEETLES. 117 



Family XXXIII. PYTHIDJE. 



Head produced, with round, prominent eyes. Body flat. 

 Antennse almost filiform, and very slightly thickened towards 

 the tips, with the last joints broader than long. They are 

 found under the bark of trees. 



Genus Pytho, Latr. 

 The only species is : 



* P. depressus, Linn. (Plate XII., Fig. 17). Black, with 

 the mouth, antennae, tibiae, and tarsi, rusty-red. The abdomen 

 is more or less completely brown, and the elytra are frequently 

 blue-black or steel-blue. It lives under the rotten bark of 

 trees. 



Family XXXIV. MELANDRYIDJE. 

 Head triangular, slightly produced, or retracted into the 

 pronotum. The pronotum is narrowed in front, but usually 

 nearly as broad as the wing-cases behind. They are found 

 under the dead wood of trees, or in fungi 



Genus Orchesia, Latr. 

 Body narrowed behind; hinder angles of the pronotum 

 not pointed. Antennae thickened towards the extremity, 

 with the terminal joints enlarged. These hopping beetles 

 live in the trunks of trees. 



* 0. micans, Illig. (Plate XIL, Fig. 18). This beetle is brown, 

 thickly covered with fine silky pubescence. The abdomen and 

 legs are orange-coloured. It is found in the trunks of oaks 

 and beech trees, where it lives on fungi. 



Genus Sereopalpus, Payk. 

 Body long and cylindrical. Antennae setiform and half 

 as loijg as the body in the male, but shorter in the female. 



