AGRIOTES. 45 



rupted in middle ; elytra scarcely broader in front than 

 base of thorax. L. If — 2 1. Eather common. 



A. pallidulus, 111. 



Sericosomus. 



Oblong, pubescence gray; thorax rather longer than 

 broad, closely punctured, with a more or less distinct 

 central furrow. Male much narrower than female, black, 

 thorax usually with some greenish reflection, elytra 

 brownish-red or dark brown, suture generally blackish; 

 female brownish rust-red, usually with head, a more or less 

 extensive longitudinal spot on middle of thorax and another 

 at basal margin, scutellum, hinder part of breast and base 

 of abdomen black. L. 2>\ — 4| 1. Moderately common. 



8. brunneus, Lin. 



Dolopius. 



Elongate, rather flat. Dark brown ; margins of thorax 

 paler ; elytra yellowish-brown, suture (more widely toward 

 base) and middle of outer margin dark ; base of antennae 

 and legs yellowish ; hairs gray. L. 3 1. Common. 



D. marginatus, Lin. 



CtenonycJiiis. 



Elongate, nearly cylindrical. Black or pitcli-black, 

 closely covered with strong, gray pubescence; antennae 

 and tarsi reddish. Thorax convex, longer than broad ; 

 elytra with rows of fine punctures. L. 4| — 5 1. /S'carce. 



G. filiformis, Fab. 



Adrastus. 



Black ; elytra brownish-yellow, with suture, outer margin 

 and hinder part (to a variable extent) blackish ; base of an- 

 tennae and legs reddish-yellow, femora brown ; pubescence 

 gray. Third joint of antennae double as long as second. 

 L. 2 — 2 1 1. Moderately common. A. limb a tics, Fab. 



Black : front of head and the thorax (wholly or at 

 margins) red ; elytra of male yellow, with or witliout 

 black suture, of female black, with yellow border. Thorax 

 with a central furrow and a deej) oblique impression on 

 each side behind. L. 4| — 5| 1. Rather common. 



C. linearis, Lin. 



