2(i8 



FAMILY VI. — H YDROl'H I LI n.^. 



cons : legs, HiiteuiiM' ;iiul ii;il])i dull i-eddish-brown. TliorMx with sides regu- 

 larly curved from base to a]iex. surface rather tiuely and closely punctate. 

 Elytra lO-striatc llie stri:e i>uuctate and distinctly impressed at apex; in- 

 tervals finely but distinctly imnctulate. Length 2 2.5 mm. 



Miirioii ;ni(I Posey counties; ^caive. April (i-April 18. 



.")2I ( IC.TS). Ckrcvon fVGM.Krs lllig.. .Mag. 1, 1802, 40. 



Oval, slightly oblong. Color given in key; antennte 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. 

 Prosternum distinctly c:irinate. I>ength 1.8-2 nun. 



Posey Comity; rare. April 1."^. T;iken Ijeiieatli bark of fungus- 

 covered log'. The (lark area of elylta varices "inueh in size. 



.522 (1C.74). Cekcyon nigriceps Marsh., Ent. Brit, 1802, 72. 



Oval, moderately convex. I'iceons, 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 flnely. not 

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

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



Marion ("oiinly; r.ire. AjJi-il L'S. '^I\'ikeu by sifting. 

 (L iiiiii)}! Hclal IIS Linn., sides of Miorax pale, length 3 inin., is 

 said to range from Canada to Illinois. 



528 (lt'>75). Cercyon pr.^^jtextatus Say, .Tourn. Phil. Acad. Nat. Sci., V, 



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 ; antennre 

 dull yellow, the club darker. Thorax transverse, closely 

 and evenly jinnctate. Elytra with ten impressed rows 

 lit close-set inincfures; intervals closely punctate, more 

 sj^arsely near ;ii)e\ and on sides. Length 2.5-8 mm. 

 (Eig. 182.) 



Throughout the State; frequent. April 15-Oe- 

 tobcr IS. (^ftcn found in dead fish or beneath rub- 

 bish along the sandy margins of |)on(ls and lakes. A large and well 

 marked species. 



(■. iiidisliiicivs Horn. 2.5-8 nnn. in length, was described from 

 Canada and Pennsylvania. 



524 (9884). Cekcvon iagubris Pa.yk., Faun. Suec, I. 1798. 59. 



Oval, convex, naiTower behind. Piceous black, subopa(|ne; el.vtra at 

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

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



