132 RHYNCHOPHORA. \Apion, 



a. Forehead with distinct stria? between eyes; 



base of rostrum almost smooth in centre . . A. CERDO, Gerst. 



b. Forehead without distinct striae between 

 eyes ; base of rostrum dull and closely punc- 

 tured throughout A. OPETICUM, Hack. 



B. Rostrum very gradually subulate ; forehead 



with very distinct striffi between eyes .... A. STJBULATUM, Kirby. 

 II. Rostrum cylindrical or subcylindrical, not subulate 



towards apex. 



i. Second stria of elytra united at apex to the eighth stria ; 



antennae inserted at the base of rostrum, which is 



furnished with a strong tooth on each side at the point 



of insc-rtion ; legs, in part at least, red ; upper surface 



strongly squamose (Oxystoma, Steph. nee Dum.). 



1. Scales of a uniform grey colour A. ULICIS, Forst. 



2. Scales brown, variegated with white. 



A. Elytra dilated and rounded, brown with the 



central interstices white A. GENISTA, Kirty. 



B. Elytra subparallel, brown with an oblique 



dorsal band and the lateral margin white . . A. FUSCIROSTRE, F. 

 ii. Second dorsal stria united at apex to the ninth. 



1. Head and thorax black, elytra testaceous, with the 

 base and more or less of the suture and sometimes 



of the side margins black A. MALVjE, F. 



2. Upper surface reddish-brown, clothed with whitish 

 pubescence; elytra with two dark denuded dentate 



bands A. TJETICAKIDM, Herlst. 



(vvritale, F.) 



3. Colour entirely red or yellowish-red (except eyes, 

 which are black). 



A. Temples covered with close and strong punc- 



tures. 



a. Colour bright blood-red ; average size larger ; 



eyes smaller and more prominent .... A. MINIATUM, Germ. 



b. Colour pale blood-red ; average size smaller ; 



eyes much larger and less prominent ... A. CRUENTATITM, Walt. 



B. Temples and throat impunctate, at least 



behind. 



a. Rostrum curved, about as long in the male as 



in the female, 

 a*. Elytra evidently dilated behind ; head as 



long as broad A. JT^MATODES. Kit-by. 



(frumentarium, Payk.) 

 b*. Elytra subparallel ; head broader than 



long' A. RUBENS, Steph. 



b. Rostrum nearly straight, considerably longer 



in female than in male A. SANGUINEUM, De G. 



4. Upper surface dark, black, or of a metallic-blue or 

 greenish-blue colour. 



A. Femora entirely or in great part red. 

 a. Pubescence white or ashy, distinct at all 



events on under side of male, 

 a*. Intermediate and posterior pairs of tibiae 



red iu both sexes. 



af. Interstices of elytra scarcely broader 

 than stria? ; rostrum black in both sexes ; 

 elytra subparallel ; size smaller. 



