FAMILY CARABID-E. 49 



Genus ANCHOMENUS (Bon.). Cararus (Fab.). 

 ■ Kfentom-tootb entire ; thorax cordate, posterior angles acute; elytra obloDg, subconvex; 

 ' head as broad as the thorax ; third joint of the antennae twice as long as the second. 

 ' Elytra rather sinuate at the apex. Anterior tarsi of the males with three dilated 

 'joints' (West. & Stepii.*). 



Anciiomexus extensicollis (Steph.). (Plate xviii, fig. 10.) 



Head and thorax green, submetallic ; elytra purplish bronze, submetallic ; legs light 

 brown. Length about four-tenths of an inch. 



Diccelus dilatatus (Say). ( Plate xxi, fig. 13.) 



Insect large ; thorax nearly as wide as the abdomen. Head black, smooth ; thorax purple, 

 indented before and behind. Elytra purple, strongly marked by eight plain lines : 

 one begins in the acute upper and outer angle, running rather obliquely, and joins the 

 fifth from the inner margin, the two enclosing one line : outer line next the margin 

 depressed, and imperfectly punctured. Length about eight-tenths of an inch. 



Dicxelus elongatus (Say). (Plate xxi, fig. 9.) 



Insect narrowed ; margin of the thorax and elytra nearly upon the same line, black ; head 

 and thorax smooth. Elytra marked with plain lines : line commencing at the outer 

 and anterior angle, rather oblique, and becoming more so at the posterior extremity, 

 where it c >alesces with the other lines, and all together terminate in the posterior and 

 inner angle ; the dotted line of the margin obsolete. Length about seven-tenths of 

 an inch. 



NpH.ERODERUS STENOSTOMFS ( D j . ) . (Plate XXi, fig. 10.) 



Insect dilated behind, narrowed before; head smooth, shining black; thorax smooth, 

 brilliant steel-blue, punctured behind- Elytra dark purplish upon their disks, bordered 

 by rich steel-blue, punctured and lined ; lines interrupted posteriorly. Glossy black 

 and punctured laterally beneath- Length from fire- to six-tenths of an inch. 



* Mr. >tephk-js remarks that the Antii'Mencs maybe distinguished from Callistus by the elongate form of the 

 thorax, and its not being punctate throughout ; and from Pj.atinis, by its acute simple notch in the centre of the 

 mentum. 



[ Agricfltural Report — Vol. v.] 7 



