the metallic wood-boring beetles. 803 



Gboup C. 



In this group the fourth joint is slender and very similar to the 

 third, the fifth broader (Fig. 307. Xos. 1 and 2). The species are, 

 for the most part, smaller and more slender, rarely over 6 mm. in 

 length. 



KEY TO INDIANA SPECIES OF GROl'P C. 



a. Hind angles of thorax not at all earinate. 



6. Elytra with pubescent spots or spaces forming a distinct design ; 

 length 4-4.5 mm. 1524. subcinctus. 



66. Elytra without pubescent spaces, vaguely costate; thorax transverse- 

 ly strigose and punctate ; seutellum earinate ; length 3 mm. 



1525. PUTILLUS. 



(til. Hind angles of thorax distinctly earinate. 



e. Elytra with pubescent spots ; lateral margin of thorax as seen from 

 the side, sinuous ; length 4.5-6 mm. 



d. Front convex, not imxjressed; prosternal lobe deeply emarginate. 



1526. tECONTEI. 



dd. Front more or less concave and distinctly impressed; prosternal 



lobe very feebly emarginate; last dorsal segment without a 



carina ; head roughly strigose. 1527. addendos. 



ce. Elytra without pubescent spots; lateral margin of thorax straight, 



deflexed only in front. 



e. Male with under surface distinctly pubescent, the first two ventral 



segments deeply channeled; thorax without lateral impressions. 



LACUSTEIS. 



ee. Male with first two ventral segments flat or feebly channeled, not 



pubescent ; length 3-5 mm. 



/. Antennae slender, joints longer than wide. 1528. egenus. 



ff. Antennge shorter, the serrate joints wider than long; prosternal 



lobe emarginate. 1529. PUSiiLrs. 



1524 (4734). Ageilx's subcinctus Gory, Jlon. Buprest., IV, 1837, 252. 



Elongate-oblong, moderately robust. Piceous, with faint bronze lustre ; 

 elytra with two yellowish pubescent spaces, one extending from humeri to 

 middle, with two interruptions, then turning obliquely outwards; the sec- 

 ond oblique, one-fourth from apex. Occiput strigose and with a deep me- 

 dian impression. Thorax one-fourth wider than long, sides regularly curved ; 

 disk with a rather broad but shallow median groove extending the full 

 length and a well marked depression each side; surface transversely stri- 

 gose at middle, obliquely so on sides. Elytra somewhat dilated behind the 

 middle, tips rounded and serrulate; disk slightly flattened with a vague 

 eosta, surface with coarse scales. Prosternal lobe broadly emarginate. 

 Length 4^.5 mm. 



Vermillion, ilarion and Vigo counties; scarce, ilay 30-J'uly 

 21. Taken by beating. 



