

Ajpion.~\ RHYXCHOPHOBA. 135 



bb*. Bi>dy behind thorax broad and comparatively short. 



aat. Shoulders very prominent ; size larger . . . . A. Ticiypit, Kirby. 



hlf. Shoulders rounded ; siie smaller A. ATOMARICM, Kirly. 



bb. Sutnral stria* not prolonged to base of elytra ; as a 



rule not, or scarcely, passing the apex of scuteliuni. 

 aa*. Rostrum strongly curved, as a rule long and 



slt-mler (but rather short in a few species), 

 aat. Interstices narrow, carinate, much narrower 

 than the striae, which are strongly and catenulately 



punctured (found on Salix) A. MINIMUM, Herbtt. 



bb-f-. Interstices level or convex, rarely raised, very 



seldom as narrow as the stria;. 

 aa. Thorax and elytra glabrous.* 



aaa. Colour of elytra metallic, blue, green, or 



greenish-blue. 



aaa*. Punctuation of thorax shallow and diffuse. 



aaaf. Size -smaller ; elytra more depressed, 



greenish -blue ; fovea at base of thorax not 



strong A. VIBENS, Herbst. 



bbb-f. Size much larger ; elytra convex, deep 



blue; fovea at base of thorax strong . A. JTXCTIGEBOM, Payk. 

 bbb*. Punctuation of thorax deep aud more 



or less close, 

 aaaf. Eyes prominent. 



aaaj. Head and thorax black, elytra 



deep purplish-blue A. PISI, F. 



bbbj. Colour entirely bright golden 



green or greenish-blue A. ASTRAGALI, Payk, 



bbbt. Eyes not prominent ; head aud thorax 



black, elytra detp blue A. .ETHIOPS, Herbst. 



(subsulcatum, Marsh.) 

 bbb. Colour of upper and under surface entirely 



black. 



aaa*. Thorax diffusely and very finely punc- 

 tured, smooth and shining, much longer 

 than broad ; size larger ....... A. KBBNIKU1C, Kirby. 



bbb*. Thorax closely and comparatively strong- 

 ly punctured, dull, not much longer than 



broad; size small A. FILIKOSTEK, Kirby. 



bbj. Thorax and elytra more or less distinctly 

 pubescent. 



aaa. Thorax with a central dorsal channel 

 extending from base to apex ; colour 



leaden; size rather small A. OUOMS, Kirby. 



bbb. Thorax with a central dorsal channel 

 continued beyond middle, but more or 

 K ; obsolete towards apex, and sometimes 



towards base. 



aaa*. Elytra blue ; forehead with a de- 

 pression between eyes; antennas black A. SP^NCKI, Kirby. 

 bbb*. Elytra black or leaden-coloured ; 

 forehead without depression between, 

 eyes. 



* In A. virens the pubescence is scarcely visible, aud I have therefore placed it in 

 this division. 



