Horn.] ^Jk) [June 20, 



This species by its oblong form recalls remotus. Differs from all tlie 

 species of the present group by the unistriate epipleurte. 

 One specimen, Illinois. 



H. dispar, Lee. Bost. Journ. V., p. 57, pi. 3, fig. 8 ; liospitus, Lee. 

 Proc. Acad., 1859, p. 312. 



Thorax at sides unistriate, stria distant from the margin. Elytra with 

 three entire striae, sometimes with trace of fourth at base and apex, 

 sutnral extending three-fourths the length of the elytra, subhumeral 

 entirely absent. Epipleura; bistriate. Proiiygidium coarsely but very 

 sparsely punctured, pygidium more finely punctured and nearly smooth 

 at apex. Anterior tibiae tridentate, apical tooth feebly bifid. Length 

 .12-. 16 inch; 3-4 mm. 



Occurs in the Middle States, Georgia, Illinois and Kansas. 



H. depurator, Say. Journ. Acad., 1825, i). 33 ; Lee. Bost. Journ. V., 

 p. 54, pi. 3, fig. 3 ; Mars. Mon., 1854, p. 274, pi. 8, fig. 74 ; Payhulli, Kby. 

 Faun. Am. Bor. p. 123 ; spfetus, Lee. Bost. Journ. V., p. 53, pi. 3, fig. 1 ; 

 Mars. Mon., 1854, p. 271, pi. 8, fig. 72. 



Thorax bistriate, inner stria always entire, outer variable, sometimes 

 nearly entire, more frequently extending to middle only. Elytra with 

 three entire dorsal striae, fourth a^jical rarely extending to middle, fifth 

 existing in mere trace, sutural extending to middle, subhumeral at apex 

 moderately deeply impressed, humeral appendix usuallj"^ pressnt always 

 very feeble. Epii^leuraj bistriate. Pi'opygidium coarsely but very 

 sparsely punctured, pygidium more finely punctured and nearly smooth 

 at apex. Anterior tibite tridentate, upper tooth feeble, apical pi'omineut 

 and slightly bifid at tip. Length .22 inch ; 5-. 5 mm. 



Distributed from Canada to Georgia. 



H. furtivus, Lee. Proc. Acad., 1859, p. 313. 



This species closely resembles the preceding, and differs by the total 

 obliteration of the subhumeral stria. The apex of the prosternal lobe 

 is truncate or emarginate with the sides of the emargination slightly 

 prominent. This latter character will serve to distinguish it from every 

 other species in our fauna. Length .20-. 22 inch ; 5-5.5 mm. 



Occurs from Canada to Georgia. 



H. incertus, Mars. Mon., 1854, p. 269, pi. 8, fig. 70. 



Closely allied to depurator, but differs in the absence of any subhume- 

 ral stria, and the epipleurae distinctly tristriate. Length .1G-.24 inch; 

 4-6 mm. 



Occurs from the Middle States to Florida and Texas, and westward to 

 Kansas. 



H. militaris, Horn, Trans. Am. Eut. Soc, 1870, p. 135, pi. 1. fig. 4. 



Inner thoracic stria entire, outer very short, apical and between the 

 two a few punctures. Elytra with three entire strite, fourth extending 

 to middle, fifth very short, apical, sutural half the length of the elytra, 



