THE GROTND BEETLES. 109 



Lake County, frequent along the south shore of Lake Michigan; 

 also taken in Lagrange and Marion counties. June 15-October 28. 

 Probably occurs throughout the State. 



l<;f> (tiTN). AMAKA KK.MO'I KSTKIATA De.j.. Sp. <!en.. 111. 1828, 4111. 



Oblong-oval, moderately convex. Reddish-brown or slightly piceous, 

 males shilling, females dull : antenna- and legs pale reddish yellow. Thorax 

 one-halt' broader at b.ise than long, hind angles sharply rectangular; basal 

 impressions double, shallow, sparsely and coarsely punctate, the outer some- 

 what triangular, the inner linear. Elytral stria- tine, smooth or very finely 

 punctate; intervals tlat. Length 0.5 s mm. 



Vigo and Crawford counties; rare. April 20-September 21. 



100 (077). AMARA CHALCEA Dej., Spec. (Ten.. III. 18128, 470. 



Form more broadly oval and more convex than the next. Piceous, 

 shining, surface slightly bronzed ; antenna? and legs reddish-brown. Thorax 

 nearly twice as wide at base as long at middle, hind angles rectangular; 

 basal impressions double, rather large and deep, sparsely and rather coarse- 

 ly punctured. Elytral stria- nut punctured ; intervals Hat. Length 0.5-7 mm. 



Vigo County; rare. April 17. 



107 (082). AMAKA SUB.*; NBA Lee., Agass. Lake Sup.. 18."0. 20>. 



Oblong-oval. 1'iceotis or dark reddish-brown, faintly bronzed, shining; 

 antenna* and legs dark reddish-yellow. Thorax about one-hall wider at 

 base than long at middle, distinctly narrowed at apex, front angles distinct, 

 hind angles rectangular; basal impressions rather deep, the inner larger, 

 sparsely and coarsely punctured. Elytral stria- finely and creuately punc- 

 tured. Length 5.5-0.5 mm. 



A northern form, known from Indiana by a single specimen 

 taken by Wolcott near Clarke Junction, Lake County, June 24. 



108 (081). AMARA KIBRKA Ha Id.. I'roc. 1'hil. Acad. Nat. Sci., I. - , 301. 



Oblong, moderately convex. Reddish to chestnut-brown, shining; an- 

 tenna? and legs paler. Thorax not twice as wide as long, hind angles very 

 obtuse; basal impressions shallow, usually punctured. Elytra slightly wider 

 at. base than thorax, stria* finely, crenately punctured; intervals convex. 

 Length 0-7 mm. 



Southern third of State ; scarce. May 6-October 9. 



10<> (083). AMARA MUSCTLUS Say. Trans. Amer. I'hil. SIM.-.. II. 1823, 35; 

 ibid. II. 402. 



Oblong-oval. Piceous or dark reddish-brown, shining; antemue and 

 legs pale reddish-brown. Thorax one-half wider than long, distinctly nar- 

 rowed in front; basal impressions almost obliterated, sparsely punctate or 

 smooth. Elytral stria- as in niliricii, which species it cl isely resembles and 

 from which it is best separated by its smaller size and lack of punctures 

 on sides of metasternuni- Length 5-5.5 mm. 



