APION. 179 



(except club) and legs (except tarsi) yellow. Forehead 

 very finely wrinkled ; thorax almost broader than long, 

 very finely punctured ; elytra oval, very convex, with punc- 

 tured furrows. Eostrum of male shorter than that of 

 female and with anterior half yellow. L. | 1. Common. 



A. nigritarse, Kirby. 

 2. Legs entirely black. 



A A, Thorax feebly punctured. 



a a. Shoulders of elytra not prominent. 



Black, shiny, bare. Eostrum distinctly punctured ; 

 forehead striate; thorax oblong, nearly cylindrical, diffusely 

 punctured, with a short broad central furrow behind; 

 elytra oval, with punctured furrows, interstices convex ; 

 antennae short. L. 1\ 1. Moderately common. 



A. eheninum, Kirby. 



h b. Shoulders of elytra prominent. 



A a. Elytra black. 



Deep black, rather shiny, bare. Eostrum moderately 

 long, shiny, antennae inserted nearer its base in male than 

 in female ; forehead punctured, punctures confluent ; thorax 

 oblong, cylindrical, diffusely and feebly punctured, with an 

 impression before scutellum ; elytra oblong oval, narrow, 

 with fine punctured striae, interstices flat. L. 1 1. Eather 

 common. A. tenue, Kirby. 



-B b. Elytra blue or green. 



A 1. Antennae inserted in middle of 

 rostrum ; first tarsal joint distinctly 

 longer than second. 



Black, bare ; elytra dark blue. Eostrum thickened at 

 base, shiny in front ; forehead furrowed ; thorax as long as 

 broad, almost cylindrical, with fine indistinct punctures 

 and a feeble central furrow behind ; elytra oval, with punc- 

 tured furrows, interstices slightly convex. L. 1^ 1. Eather 

 common. A. punctigerum, Payk. 



-B 1. Antennae inserted a little behind 

 middle of rostrum ; first tarsal joint 

 only slightly longer than second. 

 Black, shiny ; elytra greenish-blue or green. Forehead 

 wrinkled ; thorax much broader than long, usually with 

 metallic reflection, extremely feebly punctured, with a 

 small, puncturelike impression before scutellum ; elytra 



N 2 



