ITEKOSTICIIIDEA. 43 



of palpi in the latter case cylindrical ; elytra 

 usually with dorsal impressions. 



Pterostichus, Er. 



S, Tooth of nientum eniarginate at apex, rarely 

 pointed ; labrum emarginate ; apical joint of 

 palpi oval, slightly truncate ; elytra without 

 dorsal impressions. Amara, Bon. 



II, Two spines at the apex of the notch on the 

 anterior tibiae. 



Labrum emarginate ; tooth of mentum generally sim|)le, 

 sometimes s]>lit ; apical joint of maxillary palpi oval, 

 truncate, that of labial palpi almost cylindrical ; elytra 

 strongly arched, without dorsal impressions. 



Zahrus, Clair v. 



Sphodi'HS, 



Winged. Black; thorax heart-shaped, fully as long as 

 broad ; elytra with fine punctured striae. In the male the 

 trochanters of the posterior legs are very long and pointed. 

 L. 10 — 111. Not common, G. leucophthalmus, Lin. 



Pristony chits. 



Upper-side black, with dark bluish elytra, under-side 

 pitch-l)rown. Thorax broader than long, somewhat heart- 

 shaped ; elytra with moderately strong striae, wliicli are 

 finely punctured ; intermediate tibiae slightly curved. 

 L. G — 8 1. Kather common. P. suhcijancus, 111. 



Calathiis, 



A, Both the third and fifth interstices on elytra with a 

 row of larger impressions beside them. 



Black, antennae, palpi and legs brownish-red. Thorax 

 slightly narrowed in front, base punctured at sides, smooth 

 in middle, posterior margin sinuate, posterior angles right 

 angles but rounded off; elytra with moderately deep, very 

 finely punctured striae, with impressions as above. L. 5 — 

 6 1. Common. C. cistcloidcs, Panz. 



B. Larger impressions on the third interstice only. 



a. Thorax as broad at posterior margin as in middle. 

 I. Body black, aptercnis. 



