106 CARABID^E. PTEROSTICHUS. 



13. P. melanarius : oblongus, niger ; thorace subquadrato, pos- 

 tice subangustato, utrinque foveolato Ustriato, angulis 

 posticis obtusis ; elytris profunde striatis, interstitiis con- 

 vexiusculis. 



Carabus melanarius, 111. Kafer, 1. 163. 



Harpalus melanarius, Gyll. Ins. Suec. 2. 92. 



Feronia melanaria, Dej. Spec. 3. 271 ; Icon. 3. 66. pi. 133. 



Omaseus melanarius, Steph. Mand. 1. 115, et Manual, p. 33. 



O. affinis, Steph. Mand. 1. 116. 



O. sulcatus, Steph. Mand. 5. 376, et Manual, p. 33. 



Carabus leucophthalmus, Fab. S. El. 1. 177. 



Deep black, shining. Head with the usual impressed fovea 

 on each side between the eyes very strongly marked. Thorax 

 subquadrate, the breadth in front being greater than the length, 

 the sides obliquely narrowed behind the middle, the posterior 

 angles small and prominent, but the apex of the angle itself 

 obtuse, disk much wrinkled, dorsal furrow entire and more 

 deeply impressed at the base, the latter impunctate, but with 

 two deep rough fovese terminating in a longitudinal stria and 

 exterior to these with an elevated fold running into the angle. 

 Elytra broader than the thorax, and furthermore dilated behind 

 the middle, convex, deeply striated, the second stria from the 

 suture with two deep impressions, one about the middle and the 

 other two-thirds the distance between that and the apex. Length 

 6^-9 lines. 



Although this insect is the C. vulgaris of the Linnsean Collec- 

 tion as shown by the major part of the examples placed there 

 under that name, it cannot be the species intended by Linnaeus 

 to represent his C. vulgaris, because he expressly describes the 

 latter as nigro-aneus. It must consequently continue to bear 

 the name assigned to it by Illiger: 



The insects recorded under the names O. affinis and sulcatus 

 in the Stephensian cabinet evidently belong to the present 

 species. The former is a very large example, and the latter a 

 somewhat small mountain variety which is abundant in North 

 Wales. 



Common. 



14. P. nigrita : oblongus, niger ; thorace subquadrato, postice 

 subangustato, utrinque punctulato foveolato bistriatoque, 

 angulis posticis obtusiusculis ; elytris striatis, interstitiis 

 planiusculis. 

 Mas, abdominis segmcnto ultimo tuberculato. 



