THE GEOUXT) BEETLES. 97 



134 (571). FxEBOiTicHis CORVI-M .^ Dej., Spec. Ill, 1,S27, 2S1. 

 Elongate, more robust. Black, antennae and tarsi piceous. Thorax 



rather short, sides rounded, not sinuate, hind angles very slightly promi- 

 nent or subobtuse; basal impressions very deep, sparsely and coarsely 

 punctured. Elytral strise deep, not. or very finely punctured. Length 

 l;-^.5-15 mm. 



Frequent aljout the margins of lakes in the northern half of 

 the State ; not yet taken in the southern half. May 5-October 29. 



135 (572). Ptekostichus haldem.\ni Lee, Ann. Lye. Nat. Hist., IV, 1848, 



341. 



Oblong, very roljust. subdepressed. Black, elytra not shining ; an- 

 tennae and tarsi piceous. Thorax a little broader than long, narrowed be- 

 hind, sides scarcely sinuate, basal impressions not punctured. Elytrai 

 striae narrovr. deep, not punctured ; intervals convex. Length 22-24 mm. 



A southern form, rare in Indiana. Two specimens from mar- 

 gins of cypress swamp, Knox County. April 23-May 25. This 

 species and the next two were formerly classed under the genus 

 Lophoglossus Lee, distinguishefl by the ligula being obtusely cari- 

 nate for its whole length. They also have the thorax strongly re- 

 tlexed, gradually wider behind, the front transverse line deep, dis- 

 tant from margin, the hind angles obtuse; dorsal punctures three. 



1.36 (573). Pterostichus taktaricis Say, Trans. Amer. Phil. Soc, II, 

 1S23, 44; ibid. II, 4(39. 

 Oblong, depressed. Black, shining, antennae, tibi.-i.- and tarsi piceous. 

 Thorax with sides distinctly sinuate towards the base. Elytral strise finely 

 and indistinctly punctate, intervals subeouvex. Male witli subapical tooth 

 on inner surface of middle tibiic sliort, olituse; the apical process large, 

 acute. Length 16-20 mm. 



Throughout the western half of the State, common; especially 

 .so in sandy localities near water. Hibernates. April 17-Decem- 

 ber 28. 



137 I."i74). I'TEEOSTiciirs scKUT'ATOii Lec, Ann. Lj-c. Nat. Hist., IV, 1848. 

 342. 

 Oblong, depressed. Black, very shining; legs and antennae piceous. 

 Hind angles of thorax less prominent than in tiirtaricuN and elytral striae 

 differing as mentioned in key. Male with subapical tooth of middle tibia' 

 long and sharp ; the apical process not distinct. Length 15-lC mm. 



Cass County; rare. September 15. Two specimens taken by 

 Dr. Robert Hesrsler from a ditch dug about a burning peat bog near 

 Royal Center. 



