F.UIILY XXV. 11ISTERID-E. 



outer with only a trace. Propygidium coarsely and sparsely, pygidium more 

 finely, punctured. Front tibia; 1 with three teeth, the apical prominent and 

 slightly hi fid at tip. Length 5-6.5 mm. 



Throughout the Slate; more frequent in the northern counties. 

 June 10-September 18. Occurs in putrid fungi and excrement. 

 The subhumeral. fourth, fifth and sutural stria- are often partially 

 represented by detached punctures and the sutural rarely reaches 

 apex. 



1153a (3490). HISTER DEPURATOR INCERTUS Marsuel. Mon. Hist., 1854, 260. 

 A variety of <lcin<r<itor without trace of subhumeral stria and with the 

 epipleura tri-striate. Length 5-6 mm. 



Vigo County ; scarce. June 11. 



11 51 CU'.ir,). IIis-iKi; hi inivrs Lee.. Proc. Phil. Acad. Nat. Sri.. 1S59, :ii:'.. 



Resembles ilc/nini tor. differing oidy in having the subhumeral slria 

 wholly absent and the apex of the prosternal lobe truncate or faintly emar- 

 ginate. with the sides of the emargination slightly iirominent. Length 

 5-6 mm. 



Wells. Vigo and Jennings counties; scarce. June 11-Septem- 

 ber 24. 



If. en r/til us Lee., without trace of subhumeral stri;x\ but with a 

 short humeral appendix, is known from Pennsylvania and Illinois. 



GROUP C. 



In this group the front margin of the mososternum is truncate 

 and the side pieces of mcso- and metasterna grooved. Seven species 

 cccur in the State-. 



KEY TO SPECIES OF CiKOl'P C. 



'/. Elytra hicolored. Mack and red; epipleura very narrow with one stria. 



1155. r.iMAf ri..\Trs. 

 '/'/. Klylra \\'holly lilack ; epipleura broadei'. with two stria-. 



l>. Elytra ,'vith two subhumeral stria>, tlie outer entire; thorax with but 

 one, marginal stria. 1156. SEDKCIMSTIUATI-S. 



lih. Elytra without subhumeral stria. 



<: Elytra with five entire dorsal stria 1 . 



(1. Thorax with two marginal stria 1 , the outer one short. 



<: Surface smooth. 1157. AMERICANUS. 



cc. Surface distinctly punctured. 1158. PERPLEXUS. 



<hl. Thorax with only the inner stria present. 115!). EXARATCS. 



<<. lOlytra with fou v entire dorsal sti'ia 1 or less. 



/. Four entire doi-sal stri.-r present ; epipleura with two stria 1 . 



1160. NfBILl S. 



/'/'. Three entire dorsal stria' present, the fourth short, basal: epi- 

 pleura with three stria?. 1161. POI.LUTI s. 



