Horn.] ^O-i [June 30, 



punctured along a narrow basal space especially at the sides. Elytra 

 with three entire dorsal striae, sutural obsolete, subhumeral entire and 

 straight. Pygidium and propygidium coarsely but not densely punc- 

 tured, the latter the more sparsely. Length .22— .28 inch ; 5.5-7 mm. 

 Occurs in California. 



Group Merdarius. 



Thorax bistriate, outer stria entire and as distant from the margin as 

 from the inner stria, this latter usually shorter than the outer. Anterior 

 tibiaj quadridentate, hind tibia? biseriately spinulose. Elytra with four 

 entire striae. Epipleurae unistriate, subhumeral stria entire. Antenna! 

 cavities deep. 



Surface above, sparsely punctured Harrisii. 



Surface smooth. 



Apical tooth of anterior tibiaj more prominent than the 



second merdarius. 



Apical tooth much less prominent than the second. 



Sutural stria long extending in front of middle i mterruptus. 



00 ( stygicus. 



Sutural stria very short, apical immunis. 



H. Harrisii, Kby. Fauna Bor. Am. IV., p. 124 ; Lee. Bost. Journ. 

 V.. p. 40, pi. II, fig. 5 ; Mars. Hon., 1854, p. 200, pi. 8, fig. 92. 



Surface sparsely and equally punctured. Anterior tibia; quadridentate, 

 apical tooth shorter than second. Thorax bistriate, outer stria entire 

 and arcuate at base, inner slightly shorter than the outer, and confused 

 at basal end. Elytra with four entire striae, fifth extending to middle, 

 sutural longer than the fifth, subhumeral entire. Propygidium and 

 pygidium coarsely and rather densely punctured and subopaque. Length 

 .16-20 inch ; 4-5 mm. 



Occurs from the Middle States to Georgia. 



H. rnerdarius, Hoffin. Ent. Hefte, 1, p. 39, pi. 1, fig. 3 ; Lee. Bost. 

 Journ. V., p. 47, pi. 2, fig. 1 ; Mars. Mon., 1854, p. 207, pi. 8, fig. 91 ; 

 \ Say. Journ. Acad., 1825, p. 32. 



Sides of thorax with a few sparsely placed punctures, bistriate, outer 

 stria entire and straight, inner somewhat sinuous, frequently slightly 

 shorter than the outer. Elytra with three entire stria;, fourth slightly 

 abbreviated at base, fifth and sutural nearly equal, extending to the 

 middle, subhumeral entire nearly straight. Anterior tibiaj quadriden- 

 tate, apical tooth more prominent than the second, and slightly notched 

 at the tip. Propygidium sparsely punctured, pygidium more densely 

 and equally punctured. Length .20-.22 inch ; 5-5.5 mm. 



Occurs in the Middle States, is common in Europe. 



H. interruptus. Beauv. Ins. 180, pi. 60, fig. 8 ; Mars. Mon., 1854, \>. 

 205, pi. 10, fig. 00 ; obtusatus, Harris, Trans. Xat. Hist. Soc. Hartford, Xo. 

 1 ; Lee. Bost. Journ. V., p. 47, pi. 2, fig. 2. 



