1214 FAMILY Lin. CHRYSOMELIDiE. 



tures. Elytra very little wider than thorax, umbone not prominent, disk 

 with scutellar and nine discal stria? of coarse, rather closely set punctures: 

 intervals flat, each with a single row of fine punctures. Length 2.5 mm. 



Jackson. Spencer and Dubois counties ; rare. May 13— May 24. 

 Occurs on willow. 



2245 (6980). Cbepidodeea helxines Linn.. Syst. Nat., X, 1765, 373. 



Oblong-oval, moderately convex. Metallic bronzed, blue or green ; an- 

 tennae and legs reddish-yellow, hind femora often darker ; under surface 

 piceous. Thorax more than half wider than long, not narrowed in front, 

 sides very feebly curved ; ante-basal impression deep and at each end sud- 

 denly bent towards base, surface coarsely and unequally punctate. Elytra 

 distinctly wider at base than thorax, umbone rather prominent, punctures 

 rather coarse, becoming finer towards apex ; intervals very minutely punc- 

 tate. Length 2.5-3.3 mm. 



Throughout the State ; common. April 16- July 14. Occurs 

 especially on the foliage of elm. thorn, willow and poplar, and some- 

 times attacks that of apple and pear. A handsome little species ex- 

 ceedingly variable in hue. 



2246 (69S2). Cbepidodeea modeeri Linn.. Faun. Suec, 1761, 167. 

 Oblong-oval, rather robust, narrowed in front. Piceous with a shining 



bronzed lustre; apical third of elytra indistinctly dull yellow; antennae 

 brownish or piceous. the four basal joints pale: legs brown, the front and 

 middle pairs paler. Thorax one-half wider than long, sides nearly parallel 

 behind the middle: disk convex, the ante-basal impression more shallow 

 than in helxines. the impressions at each of its ends deeper, surface coarsely 

 and rather sparsely punctate. Elytra distinctly wider at base than thorax, 

 nmbone prominent, punctures coarse and close-set on base, finer and more 

 distant towards apex. Length 2-2.5 mm. 



Lake and Kosciusko counties ; scarce. May 30-June 29. Occurs 

 on the arrow alum and other semiaquatic plants about the margins 

 of lakes. A member of the Transition life zone. Our form is var. 

 mane id a Lec. 



2247 (69S1). Cbepidodeea atbiyextris Melsh.. Proc. Phil. Acad. Nat Sci., 



Ill, 1S47, 165. 



Short, broadly ovate, convex. Dull reddish-yellow; antennae and legs 

 paler. Thorax twice as wide as long, sides feebly curved, obliquely trun- 

 cate near front angles and with a slight angulation one-third from apex; 

 disk convex.^ not punctured. Elytra wider at base than thorax, umbone 

 distinct; punctures coarse, rather closely placed on base, finer toward apex. 

 Length 1.5-1.8 mm. 



