FAMILY CARABID^E. 45 



A. Montana cniarginatc, and without a tooth. 



B. Aleutum cniarginatc : euiarginatiou famished with a bifid tooth. 

 ('. Mentum emarginatc, and furnished with a simple tooth. 



Genus AGONUM. Carabus (Lin.). 



' Anterior tarsi with elongated joints ; mentum tooth simple ; thorax rounded' (West- 

 wood). 



Agonum octopunctatum. (Plate xviii, fig. 8.) 



Head, thorax and elytra brilliant green above, and traversed through the middle by a 

 bronze belt ; greenish bronze below. Elytra marked with four punctures each towards 

 their inner margins. 



Agonum cupripenne. (Plate xviii, fig. 9.) 



Body and thorax brilliant green ; elytra brilliant bronze or green, as the light favors the 

 reflexions. Elytra faintly lined, and punctured upon the marginal line. 



Genus HARPALUS (Latr.). 



' Palpi, external maxillary and labial with the terminal joint fusiform and truncate, and 

 1 of ecpual length with the preceding, which is clavate ; labrum subquadrate, slightly 

 ' emarginate ; mandibles short ; mentum deeply notched, with an obtuse simple 

 ' lobe in the centre ; antennae with two basal joints, naked ; thorax transverse, sub- 

 ' quadrate. Anterior and intermediate tarsi of the males with three dilated joints ' 

 (Stephens). 



Harpalus pleuriticus (Raf.). (Plate xix, fig. 16.) 



Chest nut -brown; sides, both of the elytra and thorax, nearly straight, obtuse behind. 

 Length half an inch. The thorax is smooth, and without punctures upon the angles, 

 and the male is darker than the female. 



Harpalus bicolor. (Plate xix, fig. 15.) 



Color dark chestnut-brown. Sides rather curved, and posterior angles of the abdomen and 

 elytra rounded. Length six-tenths of an inch. 

 The thorax is marked by a central line, which extends to the posterior margin : pos- 

 teriorly it is indented by two impressions, and sculptured like the faunus. 



Harpalus faunus (Say). (Plate xix, fig. 14.) 



Color reddish brown, nearly uniform. The thorax is longer than in the pleuriticus, and 



