AMERICAN COLEOPTERA. 59 



make a satisfactory comparison between it ami Tri/pherus Lee. {Lijyerus 

 Kiesenw. ), wliich is somewhat unfavorable to the retention of the hitter 

 as a distinct genus, though in the present condition of nomenchiture it 

 cannot be properly suppressed. The enormous inflation of the middle 

 thighs of the % in /. discoidalis, the extremely prolonged spinil'orm 

 trochanters, and the very short tibi;e of the same pair of legs would lead 

 one on superficial inspection to regard the two insects as distinct generic 

 types. But I find that in the S of T. latipcnnis the middle trochanters 

 are larger than in the 9 , ])ointed at the end and angulated or even toothed 

 near the base ; the middle thighs are also decidedly thicker than in the 

 9 , though there is no difference in the tibiae. The last abdominal seg- 

 ments are similarly modified in the two species, though much more strongly 

 so in the Oriental than in the American species. In the former the last 

 dorsal is emarginate or bilobed, and is moreover deeply excavated beneath ; 

 the seventh ventral is truncate behind, and the eighth narrower and 

 mucli smaller. In T. latipennis the last dorsal is only broadly emar- 

 ginate, and there is a small anal segment ; the seventh ventral is deeply 

 emarginate, the eighth is more complex in arrangement with some small 

 processes, which are difficult to describe, and as there is but one species, 

 quite unimportant for the recognition of the same. The eyes in both 

 genera are large and prominent in the % . 



Pieeous, more or less varieii with testaceous, elytra nearly twice as long as the 

 prothorax, rugosely punctured, tips rounded, testaceous; antennse one-half as long 

 as the body, slender, dusky, testaceous at base, third joint equal to the second, 

 a little shorter than the fourth; 9 with last dorsal segment trilobed at tip; last 

 ventral oblique and subsiuuate each side, jjrolonged at tlie middle. Lengtli 7 mm. ; 

 Pa. ; Va. ; Ga latipennis Germ. 



L-OBETUS Kiesenw. 



The species referred by me to this genus differs from the South 

 American torticollis in haAang the % antenna in no respect distorted 

 or different from those of the 9 , but this is a character of merely 

 specific value. The hind legs of the % are longer than in the 9 , 

 slender, the thighs and tibiae somewhat curved. The penultimate ven- 

 tral segment in the % is broadly emarginate, and the last one is 

 oval, large and convex, very much as in Chauliognathm. The an- 

 tennfe are inserted between and near to the eyes, which are moderate 

 in both sexes. 



Black, prothorax, tip of elytra and abdomen (except the last two dorsal and 

 ventral segments), ferruginous; 9 penultimate dorsal segment broadly emar- 

 ginate, last one small, triangular, obtusely rounded ; penultimate ventral nicked 

 at tip, last one small, exposed. Length 2.5—4 mm. ; Ga. ; Fla. ; Tex. 



ab<loniinaIi!!i Lee 



