Horn.] ^.)b [June 20, 



Closely allied to the preceding sijecies, it differs by the absence of any 

 marginal thoracic stria and by having four entire dorsal striae only, to the 

 elytra, the fii'th and sutural extending from apex to middle. Lenj^th 

 .08-. 10 inch ; 2-2.5 mm. 



Occurs with the preceding species. 



H. Saunieri, Mars. Mon., 18C1, p. 1G2, pi. 4, No. 15, fig. G. 

 Differs from vermis by its stronger punctuation, and especially by the 

 pj'gidium being densely punctured. 



Found by Marseul near Rochester, New York. Unknow^n to ns. 



Sub-genus Plati/soma. 

 Anterior tibiae with tarsal groove deep, sinuate. Thorax without 

 inner lateral stria. Prosternum without marginal line at apex. Middle 

 and hind tibiie dentate. Anterior tibia3 w'ith inner margin straight, and 

 without dentiform process near the base. 



Body broad, not twicft as long as wide, depressed ; elytra with not 

 more than three entire dorsal striaj. 



Anterior tibiaj 5-dentate sutural stria well marked carolinus. 



Anterior tibiae 4-dentate ; sutural obsolete or wanting. 



Sides of thorax smooth aurelianus. 



Sides of thorax punctured Lecontei. 



Body elongate, more or less cylindrical, always as long or longer than 

 twice the width. Elytra with more than three entire dorsal striae, 

 Sutural stria entire. 

 All the dorsal elytral striae entire ; sub-cylindrical ; 



mesosternal stria entire parallelus. 



Fifth dorsal abbreviated at base ; depressed ; meso- 

 sternal interrupted ajquus. 



Satural stria short, or at least, abbreviated. 

 Mesosternal stria entire. 



Thorax evenly punctured ; fifth and sutural striae 



long coarctatus. 



Thorax smooth at middle ; fifth and sutural abbre- 

 viated punctiger. 



Mesosternal stria broadly interrupted basalis. 



H. earolinus, Payk. Mon., p. 45, pi. 10, fig. 2 ; Lee. Bost. Journ. 

 v., p. 39, pi. 1, fig. 3 ; Mars. Mon., 1853, p. 269, pi. 7, fig. 14 ; sordidum, 

 Say. Journ. Acad., 1825, p. 44. 



Broadly ovate, sub-depressed. Thorax with outer marginal stria 

 entire ; surface smooth, irapunctate. Elytra with three entire dorsal 

 striae, fourth and fifth apical, extending to middle, sutural somewhat 

 longer. Propygidium coarsely and not very densely punctate, pygidium 

 much more finely and sparsely punctured, nearly smooth at apex. 

 Anterior tibiie finely 5-dentate, second and third denticles more distant, 

 middle tibii« 4, hind tibite 3-spinous. Body black, shining, legs reddish- 

 brown. Length .12 inch ; 3 mm. 



Occurs from the Middle States to New Mexico. 



