CERAMBYCID.E 3 21 



Tragidion Serv. 



A very well defined genus, represented by numerous species in 

 the temperate regions of North America. The prothorax is larger 

 in the male than in the female and generally clothed with thick 

 erect shaggy pubescence. The species known to me may be defined 

 briefly as follows: 



Elytra corrugated 2 



Elytra even, not corrugated, each with three very fine, unembossed, 

 thread-like lines, the prothorax in both sexes smaller than usual. .7 



2 Prothorax sharply and prominently angulated or spinose at the sides; 

 elytral corrugation strong; antennae varicolored 3 



Prothorax less narrowed, fuller at the sides and more rounded anteriorly 

 and with very small lateral tubercles 4 



3 Body larger and stouter, black, the vestiture of the prothorax and 

 legs with pale bluish reflection; elytra fulvous-red, blackish at the 

 extreme base. Male with the antennae long and rather stout, the 

 joints, except the first two and last four, red, with swollen black 

 apices, the prothorax across the very acute post-median tubercles 

 as wide as the elytral base; anterior femora excavated at the lower 

 edge of the outer face from base to beyond the middle; punctures of 

 the subglabrous prosternum very coarse; elytra rapidly narrowed 

 from base to apex. Female with antennae much shorter than the 

 body, stout, broadly compressed, serrate apically, colored as in the 

 male but with the outer five joints black; prothorax with less prom- 

 inent tubercles and narrower than the elytra, the latter but very 

 feebly narrowed from the base; anterior femora simple, the pro- 

 sternal punctures very fine and dense, the bluish hairs long and dense. 

 Length (cf, 9) 28.0-31.0 mm.; width 8.5-9.5 mm - Lower Cali- 

 fornia. [T. annulatum Csy., nee Lee.] peninsulare Schaef. 



Body nearly as large, velvety-black, first two joints of the antennae 

 black, the remaining joints fulvous, with their apices black, the 

 third and fourth joints very densely clothed at tip with black hairs; 

 prothorax strongly angulated at the sides behind the middle; elytra 

 fulvous, broadly black at base; cornuous processes between the an- 

 tennae more conspicuous than in coquus. Length 27.5 mm. Mexico 

 (Sonora) annulatum Lee. 



Body notably smaller and narrower, nearly as in peninsulare, except 

 that the thoracic and crural vestiture is deep black and not bluish 

 and that the elytral base is more extensively black. Female with 

 the antennae three-fourths as long as the body, rather slender and 

 not broadly flattened, deep black throughout; tibiae similarly com- 

 pressed, the legs, however, shorter and less stout; prosternum finely, 

 densely punctate posteriorly, transveisely rugulose anteriorly, 

 moderately pubescent; elytra perceptibly narrowed from the base; 

 lateral thoracic tubercles median and not post-median as in the two 

 preceding. Length (9) 21.0 mm.; width 6.3 mm. New Mexico 

 (Fort Wingate), Shufeldt. [fnlvipenne Csy., nee Say]. 

 T. L. Casey, Mem. Col. Ill, March, i 9 . hirsuticoUe n. sp. 



