BEETLES. 45 



and a row of punctures along the margins. The wing-cases are 

 also finely punctured. Length, 9-15 mm. It is common on 

 dung, carrion, and fungi, in which the beetles and larvae hunt 

 for the grubs of gnats. 



* P. oiigrittdus, Grav. Black and elongated, with the first 

 joints of the antennae dark pitcliy - brown. The legs are 

 generally brownish -yellow. Each row of punctures on the 

 pronotum consists of three. The wing-cases are punctured, 

 with a fine grey pubescence. Length, 4 mm. 



F. cyanipennis, Fabr. (Plate V., Fig. 8). Black, with bright 

 blue wing-cases. The head is rounded, with several punctures 

 behind the eyes. Pronotum rather broader than long. It 

 lives in fungi, and, though found in various places on the 

 Continent, is not British. 



Genus Xantholinus, Serv. 



Antenna} slightly elbowed, with no greater distance between 

 the two than between them and the eyes. Palpi filiform. 

 Wing-cases with the sutural borders overlapping. Coxas of 

 the middle legs not in contact. They live in decomposing 

 ve2;etable matter and in duni^. 



^' X. fulgiclus, Pabr. Shining black, with red elytra and legs. 

 The pronotum is smooth, with a deep groove on each side. 

 The elytra are irregularly punctured. Length, 9 mm. It is 

 found in vegetable cUhris, dead wood, &c. 



^ X. pundulatvs, Payk. Black, with the antenna?, elytra, 

 and legs either dark green or rusty -brown. The pronotum 

 is longer than broad, with very various punctuations. It is 

 a common species in moss, cut grass, &c. 



Genus Lathrobiuim, Grav. 

 The front of the head projects over the base of the an ten nee 



