466 FAMILY XI. STAPHYIJNIDiE. 



thorax, densely granulate, not punctate; vertex with a distinct but not 

 large median fovea. Thorax nearly as broad as base of elytra, one-third 

 vi'ider than long; sides parallel and feebly curved for two-thirds their 

 length, thence converging and feebly sinuate to base; disk convex, finely 

 and sparsely punctate, median line fine but distinct, hind angles obtuse. 

 Elytra one-half longer and at apex one-fourth wider than thorax; finely, 

 deeply and rather closely punctate. Abdomen finely granulate, finely and 

 very sparsely punctate above, more coarsely and somewhat closely beneath. 

 Length 3.5 mm. 



Marion County ; rare. May 15. Described from Pennsylvania. 



898 (2730). Bledius annularis Lee, N. Sp. N. Amer. Col., I, 1863, 53. 

 Elongate, slender. Head, thorax and tip of abdomen black; elytra, 



base of abdomen and antennse reddish-brovra ; legs dull yellow. Head finely 

 granulate, sparsely and finely punctate, with a small fovea on vertex. Tho- 

 rax not wider than long, sides rounded to behind middle, thence oblique 

 and slightly sinuate to base; disk finely granulate, sparsely, evenly and 

 shallowly punctate, median line fine. Elytra finely, deeply but not closely 

 punctate. Abdomen at base narrower than elytra, finely and very sparsely 

 punctate. Length 3.8-4.5 mm. 



Marion County; rare. April 16. The hind margins of the 

 dorsal segments of abdomen are often darl^er, thus causing it to 

 appear indistinctly fasciate. 



899 (2731). Blediis cokfusus Lee, Trans. Amer. But. Soc, VI, 1877, 228. 

 Elongate, slender. Head, thorax and abdomen black ; elytra and legs 



reddish-brown, the former fuscous in the region of the scutellum ; antennae 

 piceous, the base paler. Head le^s finely granulate, sparsely and finely 

 punctate, with a small vertical fovea. Thorax one-fourth wider than long, 

 sides straight to middle, thence rounded to base, the hind angles very ob- 

 tuse; disk sparsely and rather finely and irregularly i.iunctate, the median 

 line fine. Elytra deeply, rather finely and somewhat densely punctate. Ab- 

 domen as in (iiiiiiduris. Length 3-3.5 mm. 



Marshall and Marion counties; scarce. April 17- August 15. 



'.lOO (2741). BLEDHis ETirARGiNATUS Say, Trans. Amer. Phil. Soc, IV, 1S.",1, 

 4G1 ; ibid. II, 577. 

 Elongate, very slender. Black ; antenua\ lc^;s and elytra pale, the lat- 

 ter with suture dusky. Head convex, coarsely, dceiily and sparsely puiu-- 

 tate. Thorax a little wider than long, sides rounded into base; disk punc- 

 tate like the head, the impressed median line evident but fine. Elytra finely 

 and rather sparsely punctured, tlie sutural angle very widely rounded. Ab- 

 domen very sparsely and finely i)unetate. Length 2-2.3 mm. 



Southern third of State; frequent. :\lay 1-August 17. Occurs 

 along the sandy margins of streams. 



