134 



RHYNCHOPHORA. 



[Apion. 



B. Legs dark, entirely black or more or less metallic.* 



a. Forehead with two furrows in the form of a V. 



a*. Striae cf elytra rather fine and scarcely 

 punctured ; interstices broader 



b*. Strise of elytra deep and strongly punctured ; 

 interstices narrower 



b. Forehead without furrows in the form of a V, 



a*. Scutellum long and pointed, with two small 



divergent carinse at base 



b*. Scutellum even or longitudinally furrowed, 

 af. Forehead with a very large and deep longi- 

 tudinal furrow 



bf. Forehead without a large longitudinal furrow, 

 aj. Rostrum with a strong dentiform process on 



each side at the insertion of the antenna} . 

 bj. Rostrum simple, slightly thickened or angled 



at the insertion of the unt^nnse. 

 *. Thorax convex, raised on disc and depressed 



at base, with the sides strongly rounded, 

 f . Thorax with a broad and very deep furrow 

 before scutellum ; elytra glabrous, black in 

 male and blue in female 



A. COJTFLITENS, Kirby. 

 A. STOHDUM, Germ. 



A. BADIOLUS, Marsh. 



A. .ENETTM, F. 



A. CABDUOEUM, Kifby. 



A. SORBI, F. 



(loBvigatum, Payk.) 



A. LJJVIGATUM, Kirby. 

 (brunneipes, Bob.) 



A. OFOPOKDI, Kirby. 



f-f. Thorax without distinct furrow before scu- 

 tellum; elytra pubescent, black in both sexes A. HOOKEBI, Kirby. 

 **. Thorax not, or slightly, convex, with the 

 sides almost straight, or comparatively 



slightly rounded. ) 



f. Striae of elytra very fine, somewhat obso- 

 lete ; thorax almost smooth 



tf. Striae of elytra distinct. 



J. First joint of funiculus of antennae short 



and thickened suddenly from base, about as 



broad as the following; thorax very coarsely 



punctured with a broad and very deep 



furrow at base 



JJ. First joint of funiculus of antennae glo- 

 bose, ovate or gradually, claviform, almost 



always thicker than the following, 

 aa. Sutural striae prolonged to the base of 



elytra. 



aa*. Body behind thorax narrower and 

 elongate. 



aaf. Rostrum dull, pubescent nearly 

 to apex, straight in the male and 

 slightly curved in the female 

 bbf. Rostrum shiny, almost glabrous, 

 plainly curved in both sexes ; base 

 of anterior tibiae in male with a 

 testaceous ring 



A. FLAVIMANUM, Gyll. 



A. ANNULIPES, Wenck. 



* Occasionally the apex of femora or base of tibiae is furnished with a testaceous 

 ring in one sex, as in A. annulipes and A. filirostre, and in A. flavimanum the tibiae 

 are pitchy brown. 



f A. atomarium is a somewhat intermediate species, and might almost be classed 

 with the two preceding. 



