CARABID^E. AMARA. 117 



The genus Amara consists of two divisions; the first comprises 

 those species which have the thorax quadrate or subquadrate, and 

 dilated behind ; and the second comprehends those which have 

 the thorax narrowed behind. Amara, or the first division, has 

 been furthermore subdivided by Zimmermann into the sub- 

 genera 



Amara, or species which have the posterior tibiae of the <J densely 

 pilose within. 



Celia (from which Acrodon does not materially differ), or species 

 which have the posterior tibiae of the c? glabrous within 

 or slightly pilose. 



Percosia, or species which have the posterior tibiae in both sexes 

 glabrous. 



The second division is likewise supposed to comprehend 



Leirus (Brady tus, Steph.), or species which have the posterior 

 tibiae densely pilose within. 



Braditus (Curtonotus, Steph.), or species which have the posterior 

 tibiae in both sexes glabrous. 



I am not, however, disposed to place much reliance on these 

 subdivisions. 



* Prothorax quadratus, subquadratus, postice dilatatus. 



1. A. obsoleta : ovata, plerumque anea; thorace postice utrinque 

 obsoletissime bi-impresso ; elytris striatis, striis postice 

 profundioribus ; antennarum articulis tribus basi rufis ; 

 pedibus nigris. 



Dej. Spec. 3.460; Icon. 3. 241. pi. 160. Steph. Mand. 1. 129, et 



Manual, p. 36. Erichson, Kafer, 85. Heer, Faun. Helv. 93. 



Carabus trivialis, Dufts. Faun. 2. 116. 



Amara trivialis, Sturm, D. F. 6. 46. pi. 145. 



Carabus ovatus, Fab. S. El. 1. 196. 



Amara ovata, Sturm, D. F. 6. 51. pi. 146. Steph. Mand. 1. 



129, et Manual, p. 36. 

 A. ingenua et subcenea, Steph. Manual, p. 38. 



Ovate, broad, above brassy, greenish brass, brassy black, blue- 

 black, or, more rarely, brilliant shining green. Head smooth, 

 transversely striated in front, palpi and antennae brownish black, 

 three joints at the base of the latter red. Thorax narrowed in 

 front, anterior angles prominent, sides rounded and gradually 

 widened to about the middle and presenting a somewhat dilated 



