THE GROUND 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. 



165 (678). Amaea remotestriata Dej., Sp. Gen.. Ill, 1828, 473. 



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

 males shining, females dull ; antenna* and legs pale reddish yellow. Thorax 

 one-half broader at base than long, hind angles sharply rectangular; basal 

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

 what triangular, the inner linear. Elytral striae fine, smooth or very finely 

 punctate; intervals flat. Length 6.5-8 mm. 



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



166 (677). Amaea chalcea Dej., Spec. Gen., Ill, 1828, 476. 



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

 shining, surface slightly bronzed ; antennae 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 striae not punctured : intervals fiat. Length 6.5-7 mm. 



Vigo County; rare. April 17. 



167 (682). Amaea sub^nea Lee, Agass. Lake Sup., 1850. 208. 



Oblong-oval. Piceous or dark reddish-brown, faintly bronzed, shining ; 

 ■antennae and legs dark reddish-yellow. Thorax about one-half 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 striae finely and crenately punc- 

 tured. Length 5.5-6.5 mm. 



A northern form, known from Indiana by a 'single specimen 

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



168 (681). Amara rubrica Hald., Proc. Phil. Acad. Nat. Sci., I, , 801. 



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

 tennae 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, striae finely, crenately punctured; intervals convex. 

 Length 6-7 mm. 



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



169 (683). Amara musculus Say, Trans. Amer. Phil. Soc, II, 1823, 35: 



ibid. II, 462. 



Oblong-oval. Piceous or dark reddish-brown, shining; antennae 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 striae as in rubrica, which species it closely resembles and 

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

 on sides of nieta sternum. Length 5-5.5 mm. 



