268 FA5IILT VI. — HYDEOPHILID^. 



ecus; legs, antemife and palpi dull reddish-brown. Thorax with sides regu- 

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

 Elytra 10-striate. f lie strife punctate and distinctly impressed at apex ; in- 

 tervals finely but distinctly punctulate. Length 2-2..5 mm. 



Clarion aud Posey cniintips; scfirro. April (i-April 13. 



.".21 (167S). Ceecyox pygji.eus Illlg., Mag. I, 1802, 40. 



Oval, slightly oblong. Color given In key; antenniie 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 iadistinctly punctate. 

 Prosternum distinctly earinate. Length l..'3-2 mm. 



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

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



522 (1674). Cekcyos nigeiceps Marsh., Ent. Brit, 1802, 72. 



(;)val, 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. Elyti-a rather deeply striate, the striae distinctly punc- 

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



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

 ('. unipuncfatus Linn., sides of thorax pale, length 3 mm., is 

 said to range from Canada to Illinois. 



523 (1675). Ceecyon pk.^dtextati-s Say. Journ. 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 

 ai)ex and along margins of elytra, yellowish ; antenuoe 

 dull yellow, the club darker. Thorax transverse, closely 

 and evenly punctate. Elytra with ten impressed rows 

 of close-set punctures: intervals closely punctate, more 

 siiarsely near apex and on sides. Length 2.5-;^ mm. 

 (Fig. l;32.) 



Fig. 132, x8. Throughout the State; frequent. April 15-Oc- 



toher IS. Often found in dead fish or beneath rub- 

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

 marked species. 



C. ■iiirlifttiiicfus Horn, 2.5-3 mm. in length, was described from 

 Canada and Pennsylvania. 



524 (0:l:U). Cercy<),\ u-ornKis Payk., Faun. Siioc, 1, 1708. 51). 



Oval, cnnvex, narrower behind. Piceous lilack, subopaqne ; elytra at 

 apex with a well-defined pale spa.c which extends alon.tc the side margin. 

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



