Horn.] iibO [June 20, 



H. marginicollis, Lee. Bost. Journ. V., p. 58, pi. 3, fig. 11 ; Mars. 

 Mon., 1854, p. 542, pi. 9, fig. 113. 



Surface of thorax minutely punctulate, at sides sparsely punctured 

 near the base, inner stria entire, margin convex. Elytra with three 

 entire dorsal striae, fourth abbreviated at base, extending slightly in front 

 of middle, fifth very short, apical, sutural as long as the fourth, sub- 

 humeral entire. Epipleurse unistriate. Pygidium and propygidium 

 sparsely and rather coarsely punctured. Anterior tibia? 5-dentate, teeth 

 acute. Length .18 inch ; 4.5 mm. 



Middle States rare. Marginal line of prosternal lobe distinct, entire. 



H. cognatus, Lee. Bost. Journ. V., p. 58, pi. 3, fig. 10 ; Mars. Mon., 

 1857, p. 421, pi. 10, fig. 111. 



Lateral stria of thorax abbreviated at tip, confused by punctures which 

 also extend forward on its inner side. Elytra with three entire dorsal 

 stria-, fourth nearly entire, fifth short apical, sutural rarely extending in 

 front of middle, subhumeral entire. Pygidium and propygidium coarsely 

 and evenly, but not densely punctured. Anterior tibia; sub-5-dentate, 

 apical tooth very small. Length .10-. 14 inch ; 2.5-3.5 mm. 



Closely resembles foedatus, but the absence of an exterior thoracic 

 stria as well as the margined prosternal lobe at once distinguish it. Two 

 specimens are before me in which the punctures within the inner stria of 

 the thorax are entirely absent, and the stria longer, but I feel unwilling 

 to separate them on these characters without a larger series of speci- 

 mens. 



Middle States, Canada, Illinois, Wisconsin. Not rare. 



H. remotus, Lee. Proc. Acad., 1850. p. 70. 



Sides of thorax near the stria with few punctures, stria distant from the 

 margin, entire and slightly sinuous. Elytra with three entire dorsal 

 stride, fourth slightly abbreviated at base, fifth one-third the length of 

 the elytra, sutural somewhat longer, subhumeral entire. Propygidium 

 coarsely and sparsely, pygidium more densely punctured. Prosternal 

 lobe with marginal line distinct. Anterior tibia: pluridentate. Length 

 .16 inch ; 4 mm. 



This species is the most oblong of any in the group. 



Occurs at Fort Tejon, California. 



H. foedatus, Lee. Bost. Journ. V., p. 50, pi. 2, fig. 8 ; Mars. Mon., 

 1854, p. 2D2. pi. 8, fig. 88. 



Outer marginal stria of thorax usually forming a short arc near the 

 anterior angle, rarely extending half the length of the thorax, inner stria 

 usually abbreviated at tip. Disc of thorax very minutely punctulate, at 

 the sides more distinctly punctured near the stria. Elytra with three 

 entire stria?, fourth slightly abbreviated ; fifth one-third, sutural one-half 

 the length of the elytra, subhumeral entire. Pygidium and propygidium 

 densely punctured. Anterior tibia? pluridentate. Length .14-.22 inch; 

 3.5-5.5 mm. 



The prosternal lobe has the marginal line entirely obliterated in the 



