1210 



FAMILY LTTT. CHRYSOMELID/E. 



*2235 (7040). 



Fig. 533. X 18. (Afterjorbes.) 



CH^TOCNEMA DENTICULATA 111.. Mag. fur Insect., VI. 1807. 

 163. 



Oblong-oval, robust. Pieeous- 

 brouzed, slightly brassy ; antenna? 

 reddish-yellow at base, the outer five 

 or six joints pieeous ; front and mid- 

 dle femora brown, hind ones pieeous 

 bronzed; tibia- and tarsi reddish-yel- 

 low. Head and thorax alutaceous; 

 the latter nearly twice as wide at 

 base as long, sides regularly curved 

 to apex ; surface rather coarsely and 

 regularly but not densely punctured, 

 the basal marginal line feeble at the 

 sides. Elytra not wider at base than 

 thorax, the punctures coarse and 

 deep, not closely placed; intervals 

 nearly flat on disk, subeouvex on 

 sides, each with a row of very fine 

 punctures. Length 2.3-2.5 mm. (Fig. 

 533.) 



Throughout the State; fre- 

 quent. January o-Octoher 24. Occurs on sedges and grasses in 

 moist meadows. Hibernates beneath leaves and rubbish in fence 

 corners. 



223G (7043). CH^TOCNEMA CRIBRIFRONS Lee., Bull. U. S. Geol. Surv.. 1871), 



517. 



Oval, but proportionately more elongate than dcnticulata. Dark bronze, 

 moderately shining; antenna^ brownish at base, outer joints pieeous; legs 

 as in dcnticulata. Thorax also as in that species but with basal marginal 

 line distinct at the sides. Length 2.2-2.7 mm. 



Lake, Marshall, Putnam and Orange counties; scarce. April 10- 

 September 9. Kesembles dcniiculota very closely, but less broad 

 and with the punctures of the clypeus very coarse, deep and well 

 separated. 



2237 ( -). CIIJETOCXEMA MINUTA Molsh.. Pi'oc. Phil. Acad. Nat Sci., Ill, 

 1847, ir,7. 



Oval, robust. Pieeous, distinctly bronzed, shining; antenna? with four 

 basal joints brownish-yellow, the remainder piceous; legs pieeous. the tibia- 

 and tarsi sometimes paler. Head distinctly alutaceous, indistinctly punc- 

 tate. Thorax twice as wide as long, widest at middle, disk faintly alu- 

 taceous, finely and sparsely punctured; basal row of punctures distinct and 

 coarse. Elytra distinctly wider at base than thorax, punctures coarse, 

 rather closely placed, slightly broader than long; intervals feebly convex, 

 without punctures. Length 2 mm. 



