'nil'. iiisTiu: k!':k'i'1;KS. 



cm 



CC. V\-<<\\\ \\\)\:r with .1 siu.ill loolli on tlic iiiii(>r siilc ihmi- llic l>;isc; spine 

 uf prosi.M-mnii runvt'x. Siiii^'ciiiis IW Cvi.isTUix. 



SriUIKM S I. (IIIS'IKK. ) 



Hounded or ov;d. coiivox species, liiiviiiL;' 1 he el\ti-;i nluays 

 striate; thorax nearly always with two iiiai'^inal siria'. Ilie outei' 

 often short; liind til)ia' nanowci- at hasc than at apex, and with two 

 rows of spines. Since the nuniher of species and varieties of the 

 rsnbgenus taken in the State is I'-J. while five others may occur, they 

 are for conveiiiiMiee ai-raii<jv(l in four <:'i-onps. sepai-ated as follows: 



KKV TO CKOl I'S or INDIANA SriXUCS OF THK SI l!(a:.M S IllSTKH. 



(/. M;ii-;;in of tlior.-ix fringed with siiort Iniirs: iiiilennal cavities shallow. 



Group .1. 

 (III. Marjiin of thorax not frinired; anlennal cavities deep. 

 h. I'rosteruuni convex without slri;o on the sides. 



c. Mesosternum emarginate in front. Group B. 



CC. Mesosternum truncate in front. ({roup C. 



hh. Prostemum nioi-e or less tiattened with a stria on each side; meso- 

 sternum very fcelily cmarginate; outer thoracic stria usually en- 

 tire. Group />. 

 Group A. 



To this iii-oup helong tAVO rather robust s|)ecies having- the en- 

 tire "inargin of tlic thorax fringed with short yellowish hairs. One 

 of the two has been taken in the State, while the other probably 

 occurs. 



KEY TO Sl'EClES OF GROUP A. 



a. Front tibi:o bideutate; outer mar.L;inal stria of thorax entire; color 



black and red. 114.''.. biplagiatus. 



Off. Front tibi;v not dentate; outer mar-inal stria ahln-eviatcvt ; color wholly 



black. T..KVIPES. 



1143 (3472). IlrsTER bipiagiatis Lee. F.ost. .Tourn. Nat. Hist.. V, 1X45. 

 55, pi. .'5, tig. 4. 



Broadly oval. Fdack ; elytra each with a large curvdl red space on 

 the center. Thorax with two entire striic. its surface suKxth or nearly so. 

 Elytra without trace of sul)humeral stria ; each with three entire dorsal 

 strisc and a trace of fourth at base and ai)ex. the sutural extending from 

 apex one-third to one-half tow.ards liase. rygidinni spai-sely .-md I'atlier 

 finely punctured. F(>ngth 5 nun. 



Cass County; i-are. One specimen dug' Trom a Imrrow in a 

 sand bank by \)\-. Hobei-t Ilessler. .\|)ril 17. I'n'bably occurs 

 sparingly throughout the southern two-thirds of the State. 



U. Irpviprs Germ., length 'Pi.h-A.^) mm., is said to occur from 

 I'ennsvlvania to Georgia. 



