122 WILLIAM G. DIETZ, M.D. 



of the coxse, emargination moderate. Legs and tarsi slender, third 

 joint broadly bilobed, fourth long and slender ; claws rather long, 

 connate at the base. 



Why Dr. LeConte should describe the claws as being small and 

 connate nearly to the tip is difficult to comprehend. From the great 

 length of the rostrum in the female the genus approaches rather to 

 Balannlus than to any other, and their habits are in all probability 

 identical. The genus as here constructed includes S. sordidus, fulvus 

 and fiavicans. 



The species, although closely related, may readily be distinguished 

 by means of the following analytical table: 



Large species, antenuse inserted oue-third from the apex ( 'S ) or about the mid- 

 dle ( 9 ) ; scales ochreous, mottled with browu. 

 First joint of funicle not perceptibly longer than the second, prothorax 



strongly narrowed anteriorly scapalis. 



First jointof funicle distinctly longer than thesecond ; prothorax not strongly 



narrowed in front compar. 



Anteunge inserted a little before the middle ( 'S ). or one-third from the base ( 9 ). 

 First and second joints of funicle equal, or nearly so ; first joint at most one- 

 fourth longer than the second ; scales uuicolorous ; gray, or grayish 

 white. 

 Very robust, scales very small, not at all crowded ; prothorax not wider than 

 long, not constricted at the apex ; autecoxal ridges distinct. 



obesiis. 

 Less robust, scaly vestiture dense. 



Larger, first joint of funicle one-fourth longer than the second. 



moil tan US. 

 Smaller species; first and second joints of funicle long and slender, 

 scarcely differing in length, 

 Prothorax wider than long, strongly rounded on the sides and con- 

 stricted at the apex pervisus. 



Prothorax scarcely wider than long, broadly rounded on the sides and 



not constricted at the apex incertus. 



First joint of funicle distinctly longer than the second. 



Very robust, prothorax not constricted at the apex, scales on elytra mottled 



with brown floridaiius. 



Less robust; moderately convex, beak broadly impressed before the basal 

 constriction, scales unicolorous; gray, or grayish white. 

 Prothorax a trifle wider than long. 



Larger, scales more persistent, posterior tibial mucro more evident. 



coustrictus. 

 Smaller, scales easily abraded, posterior tibial mucro almost obsolete. 



sordidus. 



Small size, prothorax much wider than long liuiuilis. 



More elongate, subdepressed, scales uuicolorous, fulvous or yellow. 



Second joint of funicle longer than the third, scales fulvous. ..lulvus. 

 Second joint of funicle not longer than the third, scales yellow. 



flavicaus. 



