1062 



FAMILY LII. CERAMBYCIDJE. - 



Tribe I. GYRTININI. 



This tribe is represented in the eastern United States by a single 

 genus containing one species, which is the smallest member of the 

 subfamily : 



XLIX. Cyrtinus Lee. 1850. (Gr., "convex.") 



Head broad; eyes small, divided, coarsely granulated; antenna? 

 a little longer than body, scape slender without apical cicatrix ; the 

 joints each with one or two hairs near tip ; legs stout, femora 

 strongly club-shaped. 



1964 (63S3). Cyrtinus pygm/eus Hald., Trans. Amer. Phil. Soc. X. 1847, 42. 

 Elongate, subcylindrical. Dark brown ; anlennal joints annulate with 



yellow ; elytra with a transverse blotch of white pubescence before the mid- 

 dle. Thorax subcylindrical, constricted at base, very convex, smooth. Ely- 

 tra convex, wider behind, nearly smooth, each with a large acute spine near 

 the scutellum. Length 2-3 mm. 



Posey County; rare. June 5. Occurs on dead branches of oak 

 and is probably frequent throughout the State, but overlooked on 

 account of its small size. 



Tribe II. PSENOCERINI. 



Also represented by a single genus and very small species occur- 

 ring from the Atlantic States to Nebraska. 



L. Psenocerus Lec. 1850. (Gr., "cynips + horn.") 



In addition to characters given in key this genus may be known 

 by having the antenna shorter than body, scape rather stout, with- 

 out cicatrix ; third and fourth joints equal, longer than the others ; 

 tarsi wider than in Cyrtinus, the last joint rather long; claws 

 widely diverging\uot divaricate. 



1965 (G384). Psexocekes sep^xotates Say, Journ. Phil. Acad. Nat. Sci. 

 II. 1S24. 425; ibid. II. 200. 



Elongate, cylindrical. Dark reddish-brown or blackish, 

 densely and rather coarsely punctured; scutellum. a narrow 

 oblique band about the middle and a wider curved band, not 

 reaching suture, on apical third, clothed or composed of 

 white pubescence. Thorax cylindrical, convex, constricted at 

 base. Elytra cylindrical, each with an oval obtuse elevation 

 Fig. 453. x 2. near the scutellum. Length 3-0 mm. (Fig. 453.) 



(After Wickham.) 



Throughout the State ; common. April 2 3- July 

 29. The larva? dwell in the stems of grape, currant, gooseberry 



