THE HISTEB BEETLES. 619 



//. Pygidium not grooved. 



g. Fourth dorsal and sutural united, the latter strongly impressed 

 at base. 

 li. Outer subhumeral stria short, distinct. 1188. confoemis. 

 hl\. Outer subhumeral stria entirely absent. ' 



i. Fourth dorsal stria nearly as long as first; length 4- 

 4.5 mm. 1189. simulatl's. 



//. Fourth dorsal distinctly shorter than first; length less 

 than 2.5 mm. 1190. MixuTts. 



gg. Fourth dorsal arched at base; sutural stria very feeble, inter- 

 rupted at base and apex; length 3.2 mm. 1191. ovifoemis. 



1182 (n.lTll. Sapbinus EOTtXDATUS Kugel, Schneider ilag.. Ill, 1792. riOl. 



Broadly oval. Pi i ecus or black, shining; legs and antenuffi brownish- 

 red. Thorax rather coarsely punctate over its entire surface. Elytra with 

 first dorsal entire but very fine beyond the middle; second, third and fourth 

 nearly equal, reaching middle ; fifth represented only by a short basal arc. 

 sometimes uniting the fourth and sutural, the latter very short, on basal 

 fourth only ; surface sparsely punctured on sides and base, more densely 

 on apical third. Front tibise with five teeth. Length 2.5-3.5 mm. 



^Marion, Vigo and Crawford counties; rare. ^May lo-October 9. 

 Taken from decaying ftmgi at base of oalr stumps. 



1183 (3579). SAPEisrs POSTHnirs Mars., Mouog. Hist, 1S02. 160. 



Broadly oval. Black, strongly shining. Thorax with middle sparsely, 

 sides and base more densely and coarsely, punctured. Elytra with first 

 dorsal extending three-fourths tu apex, second, third and tnurth subenual, 

 reaching middle, the fourth arched at base and joining the sutural. which 

 extends nearly to apex: surface uf apical third coarsely but rather sparsely 

 punctured, the punctures extending frcnn the first stria to the suturi\ Front 

 tibife with a number of flue teeth. Length 3-?...5 mm. 



]\rai'sliall. Tippecanoe. Ptitnam and Posey counties; scarce. 

 ::\ray 8-October 17. 



1181 (3583). S.\PM.\us LiGEXs Erichs.. Jahrb.. 1834, ISl. 



Broadly oval. Black, moderately shining. Thorax feebly imjiresseil ou 

 each .«ide near the front angles, disk smooth, sides with punctured sjiace 

 broader in front and at base, narrower along the basal margin. Ely- 

 tra with a large, well defined scutellar space and a much smaller sub- 

 humeral one smooth; remainder of surface densely punctured; first and 

 second dorsal strise extending tw^o-thirds to apex, third and fourth a little 

 shorter and nearly equal, the fourth slightly arched; the sutural absent 

 on basal third. Front tibi.ie with a number of fine teeth. Length 4^6 mm. 



Lake County; rare. June 4. Xot before recorded east of the 

 ^Mississippi River, but said to be abundant at the eastern base of 

 the Rocky Mountains and westward, 



