50 GEODEPHAGA — CAllABIDAE. 



a. Prosternal process with a fine border; episterna of 

 metathorax longer than broad. 



I, Outer margin of elytra distinctly sinuate behind, 

 apex Ijluntly pointed ; short scutellary stria present ; 

 basal joints of antennae generally sharpened into a 

 ridge. 



Tooth of mentum broad and only slightly emarginate ; 

 basal border of elytra forming a small tooth at shoulder ; 

 anterior male tarsi not very strongly dilated. 



[^Poecilus, Bon.] 



1. Thorax slightly narrowed in front ; insect 

 winged. 



A A. Front of head and middle of base of 

 thorax delicately punctured. 



Upper-side green, Ijronze, or bluish-ldack ; first two 

 joints of antennae red ; under-side black ; legs generally 

 black, sometimes red. Thorax rather broader than long, 

 base with a longitudinal impression half-way between the 

 central furrow (which is equally deep throughout) and the 

 side margin, and a smaller one between this impression and 

 the side margin, nearer and parallel to the latter ; striae of 

 elytra indistinctly punctured. L. 4| — 6 1. Common. 



P. cu2)reus, Lin, 



Ji 7?. Front of head and middle of l)ase of 

 thorax not punctured. 



Coloured like P. ciipreus, but rather smaller and nar- 

 rower ; thorax somewhat longer, the small outer basal 

 impression directed obliquely inward and equidistant 

 between the lateral margin and the inner impression, 

 central furrow deeper before and behind than in middle ; 

 striae of elytra more strongly punctured. L. 4 — 5 1. 

 Common. P. versicolor, Sturm. 



2. Thorax as broad in front as behind ; insect 

 winged. 



Head and thorax coppery ; elytra green ; under-side 

 black ; the wliole upper-side sometimes bronze, green, or 

 blackish ; first two joints of antennae brown-red beneath. 

 Head smooth ; thorax l)roader than long, anterior margin 

 nearly straight, central furrow evenly deep throughout, base 

 witli two deep longitudinal impressions on each side ; 



