268 FAMILY VI. HYDROPH1LID/E. 



eous ; legs, antenna 1 and palpi dull reddish-brown. Tborax with sides regu- 

 larly curved from base to apex, surface rather finely and closely punctate. 

 Elytra 10-striate. the stria> punctate and distinctly impressed at apex; in- 

 tervals finely but distinctly punctulate. Length 2-2.5 mm. 



Marion and Poser counties; scarce. April 6-April 13. 



521 (1678). CERCYON PYGMJEUS Illig.. Mag. I, 1802, 40. 



Oval, slightly oblong. Color given in key; antenna? dull yellow, club 

 darker ; legs and epipleura pale. Thorax with sides regularly curved from 

 base to apex, disk rather closely but not deeply punctate. Elytra striate, 

 tenth stria indistinct; intervals flat, sparsely and indistinctly punctate. 

 Prosteruum distinctly carinate. Length 1.3-2 mm. 



Posey County ; rare. April 13. Taken beneath bark of fungus- 

 covered log. The dark area of elytra varies much in size. 



r,22 (1(574). CERCYON NIGRICEPS Marsh.. Eut. Brit, 1802, 72. 



Oval, moderately convex. Piceous, shining; sides of thorax paler; ely- 

 tra dull reddish-yellow, with an indefinite common fuscous band behind the 

 middle. Thorax with sides narrowed from base to apex, disk finely, not 

 closely punctate. Elytra rather deeply striate, the stride distinctly punc- 

 tate; intervals feebly convex, very minutely punctate. Length 1.2-2 mm. 



Marion County ; rare. April 23. Taken by sifting. 

 C. iDii/nin> tula* Linn., sides of thorax pale, length 3 mm., is 

 said to range from Canada to Illinois. 



523 (1(5751. CERCYON PR/CTEXTATUS Say. .Tourn. Phil. Ac-ad. Nat. Sci.. Y. 



1825. 190; ibid. II. 294. 



Oval, moderately convex. Piceous black, shining; front 

 angles of thorax and a large, sharply defined space at 

 apex and along margins of elytra, yellowish; antennoe 

 dull yellow, the club darker. Thorax transverse, closely 

 and evenly punctate. Elytra with ten impressed rows 

 of close-set punctures; intervals closely punctate, more 

 sparsely near apex and on sides. Length 2.5-3 mm. 

 (Fig. 132.) 



Fig. 132. x 8. Throughout the State ; frequent. April 15-Oc- 



lober 18. Often found in dead fish or beneath rub- 

 bish along the sandy margins of ponds and lakes. A large and well 

 marked species. 



(.. indistinctus Horn, 2.5-3 mm. in length, was described from 

 Canada and Pennsylvania. 



524 (9334). CERCYON LUGUBRIS Payk., Faun. Suec., I. 1798, 59. 



Oval, convex, narrower behind. Piceous black, subnpaque; elytra at 

 apex with a well-defined pale space which extends along the side margin. 

 Thorax with sides regularly curved ; disk finely, rather sparsely and evenly 



