15 



Genus [125). P^ederus. Fab. 



P. riparius, Lin. Black ; elytra bluish ; thorax, four first 

 segments of abdomen, mesosternum and legs red ; knees 

 of the femora and the antenna? black, the base of the 

 latter testaceous; 3% lines; humid situations. PL 17, 

 fig- 7- 



Genus [l26"|. Rugilus. Leach. (Stilicus, Latr.) Four 

 species. 



R. orbicularis, Payk. Black, thorax with a central longi- 

 tudinal carina ; elytra with the apex pitchy and the legs 

 testaceous ; two lines ; by sweeping ; not uncommon. PI. 

 17, fig. 8. 



Genus [127]. Astenus. Bej. Five species. 



A. angustatus, Fab. Black ; with the mouth, antennae, 

 legs and apex of the elytra testaceous; if line ; by sweep- 

 ing humid meadows ; not uncommon. PI. 18, fig. 1. 

 Genus [128]. Sunius. Leach. Four species. 



S. melanocephalus, Fab. Black, much punctured ; antennae, 

 thorax and legs fulvous; if line; beneath stones on 

 heaths. PI. 18, fig. 2. 

 Genus [129]. Ev^sthetus. Grav. One species. 



E. scaber, Grav. Pitchy black opaque, head and legs red ; 

 one line; beneath bark. PL 18, Jig. 3. 

 Genus [ISO]. Medon. Steph. (Lithocaris, Erichs.) Two 

 species. 



M. Ruddii, Steph. Black and shining ; antennae, mouth, 

 elytra, legs and apex of the abdomen red ; 3 J lines ; New 

 Forest. PL 18, fig. 4. 



The second species hitherto unrecorded is M. ochraceus, 

 Erichs. 



Family [13]. Staphylinim. Leach. 



Genus [13 1]. Siagonium, Kirby and Spence. One species. 

 In the female the head is narrower and not cornuted. 

 S. quadricorne, K. and S. Pitchy black shining, antennae, 

 legs, an oblique mark on the elytra, and the apex of the 

 abdomen reddish : or sometimes, entirely reddish ; 2 — 2\ 

 lines ; under the bark of elms. PL 1 8, fig. 5. 

 Genus [132]. Achenium. Leach. One species. 



A. depressum, Grav. Very depressed, black ; antennae 

 pitchy ; legs and terminal half of the elytra red ; 3 j lines ; 

 banks of ponds, Battersea. PL 18, fig. 6. 

 Genus [133]. Cryptobium. Mann. One species. 



C. fracticorne, Payk. Black and shining ; legs testaceous ; 

 Splines; Battersea fields, rare. 'PL 18, fig. 7. 



