1042 



FAMILY LII. CERAVtBYCIDJE. 



1929 (6218). Atiaiia coxff/sa Say, Journ. Phil. Acad. Xat. Sd, V, 1826, 

 276; ibid. II. 333. 



Short, rather stout, subdepressed. Dull black, 

 clothed with rather long yellowish pubescence, 

 which is irregularly disposed so as to leave 

 abraded smooth spots. Thorax quadrate, broader 

 than long, sides feebly rounded, surface coarsely 

 and rather sparsely punctured. Elytra broader 

 than thorax, truncate at tips, surface with 

 sparse, fine punctures intermingled with larger 

 distant ones. Length 7-9 mm. (Fig. 443.) 



Crawford County : rare. May 16. Oc- 

 curs on the red cedar. Juniperus virgi /li- 

 ana L. 



Fig. 443. X 4. (Original.) 



Division IT. LEPTUROIDES. 



This division comprises those members of the subfamily Cerma- 

 bycinae, in which the base of antenna? are not enveloped by the eyes, 

 which are usually rounded, sometimes entire, but more often with 

 a small notch or emargination. and almost always finely granu- 

 lated: front coxae conical, except in the first tribe; head narrowed 

 behind the eyes and the thorax narrowed in front, the union of 

 these two parts giving the appearance of a neck of greater or less 

 length. The name of the typical genus. Leptura, is derived from a 

 Greek word meaning ''slender or attenuated.'" in allusion to the 

 usually tapering form of the elytra, which also often have their 

 base more or less elevated above the level of the thorax. As a gen- 

 eral rule the species are more active than those of the preceding 

 groups and many of them fly by day and occur upon flowers rather 

 than upon the trunks and about the roots of trees, where the mem- 

 bers of the preceding genera are usually found. 



The division is separated into five tribes, all probably repre- 

 sented in Indiana, though four of them each only by a single genus 

 and species. 



KEY TO TKIBES OF LEPTUROIDES. 



a. Front coxae globose: mandibles chisel-shaped, not fringed on the inner 

 margin ; thorax spined on the sides and elytra at apex. 



Tribe I. Distexiixt. p. 1043, 



a a. Front coxa? conical. 



7>. Joints 3 to 5 of antenna? much thickened at tips : mandibles simple, 

 not fringed: elytra bluish-black, the basal third orange-yellow. 



Tribe II. Desaioceeixi. p. 1043. 



