170 RHYNCHOPHOkA — CUKCULIONIDAE. 



elytra ovate, rather convex, with broad punctured furrows, 

 interstices flat, finely wrinkled transversely. L. 1^ 1. 

 Rare. A. cerdo, Gerst. 



b. Rostrum gradually narrowed from base to apex, not 

 dilated beneath insertion of antennae. 



Black, dull, with fine and very scanty gray pubescence ; 

 base of antennae red-brown. Thorax conical, strongly 

 punctured, with a central furrow behind ; elytra globular- 

 ovate, with punctured furrows, interstices flat. L. 1^ — 

 IJ 1. Not common. A. subiilatum, Kirby. 



2?. Rostrum not pointed at apex. 



a. Antennae inserted at or near base of rostrum. 

 I, Scutellum small, punctiform. 

 1, All femora black. 



A A, Elytra blue, green or bronze. 



a a. Intermediate coxae almost contiguous. 



Black, with extremely fine gray pubescence ; elytra 

 black-blue. Rostrum dilated into a little tooth on each 

 side, above base of antennae ; forehead with fine longi- 

 tudinal wrinkles ; thorax almost longer than broad, with 

 large, round, deep punctures, sides straight, somewhat nar- 

 rowed in front ; elytra with deep, distinctly punctured 

 striae. L. 1| 1. Common. A. car duo rum, Kirby. 



h b. Intermediate coxae placed apart. 

 Black, without pubescence ; elytra bronze, green or blue- 

 green. Rostrum long, scarcely dilated above base of an- 

 tennae ; forehead wrinkled ; thorax cylindrical, as long as 

 broad, with large, round, deep punctures, with a short central 

 furrow behind ; elytra oval, with deep indistinctly punctured 

 striae. L. 1| — 1^ 1. Common. A. onopordi, Kirby. 

 S JS. Elytra black or leaden-black, not metallic 

 (at least in male). 



a a. Forehead with two furrows, united behind. 



A a. Striae on elytra distinctly punctured. 



Very similar to A. confiuens, but with pubescence still 



feebler, elytra ovate, with deep, distinctly punctured striae. 



L. I 1. Moderately common. A. stolidum, Germ. 



jB b. Striae on elytra rather indistinctly 



punctured. 



Narrow. Black, with very fine, gray pubescence. Fore- 



