46 GEODEPHAGA — CARABIDAE. 



h. Head not constricted behind. 



I. Elytra light brown, with a large daik bluish or 

 greenisli common spot on the hinder half. 



Head and thorax green; base of antennae, palpi and 

 legs yellowish. Thorax narrow. L. 3 1. Common. 



A. p rasi niis, Thunb. 



II. Elytra unicolorous. 



1. Striae on elytra impunctate. 



Brown-black ; antennae, palpi and legs pale yellow. 

 Thorax broader than long, heart-shaped, base punctured; 

 insect winged. L. 3i 1. Common. A. alliiJcs, Eab. 



2. Striae on elytra deep and punctured. 



Brown ; head and thorax usually darker ; antennae and 

 legs yellow. Thorax heart-shaped, longer than broad, 

 base rather strongly punctured. L. 2| 1. Common. 



A. oh long us, Fab. 



J5. Sides of thorax evenly rounded. 



a. Thorax evidently broader than long. 



I. Elytra with a yellowish-white outer margin. 



Bright-green, sometimes bronzy ; extreme margin of 

 thorax yellowish ; antennae, femora and tarsi pitch-brown, 

 tibiae paler. Thorax broad, scarcely narrowed behind. 

 L. 4^ 1. Common. A. marginatus, Lin. 



II, Elytra unicolorous. 



1, Thorax green or bronze, slightly narrowed 

 behind. 



A A. First joint of antennae and the legs black. 



a a. No impression on each side of disc of 

 thorax. 

 Head and thorax bright green, latter nnich broader than 

 long ; elytra bright copi)ery, distinctly sinuate before the 

 apex, with fine punctured striae and a row of six or seven 

 impressions on third interstice ; under-side and femora dark 

 bronze-green, tibiae and tarsi black, upper-side sometimes 

 darker coloured, in rare cases even blackish. L. 4 1. Not 

 uncoiiniion. A. sexpunctatus, Lin. 



h h. Disc of thorax with an impression on 

 each side. 



