240 RHYNCHOPHORA — ANTHRIBIDAE. 



eyes entire ; transverse ridge on thorax confused with 

 base, not turning on to sides ; first tarsal joint distinctly- 

 longer than second ; pygidium partly covered ; body cylin- 

 drical. Choragus, Kirby. 



JPlatyrhinus, 



Oblong, flat on disc. Black, rather closely covered with 

 gray and brown hairs ; rostrum, forehead, apex of elytra, 

 breast and abdomen closely covered with white or whitish- 

 yellow hairs. Eostrum wrinlvled ; thorax broader than 

 long, disc uneven. Not common. F. latirostris, Fab. 



Troxyideres, 



A, Transverse ridge on thorax straight, or with convexity 

 directed backward. 



It, Eostrum rather elongate, base somewhat narrow, 

 dilated at apex. 



Oblong, almost parallel-sided. Black ; hairy ; sprinkled 

 with gray ; rostrum and a large spot at apex of elytra, 

 under-side and part of legs closely covered with white 

 hair. Eyes approximated. L. 2 — 3 1. Eare. 



T. alhirostris, Herbst. 



b. Eostrum short, scarcely dilated at apex. 



Oblong. Black-brown ; antennae rust-red ; variegated 

 with yellowish-gray pubescence ; rostrum, a spot on thorax 

 before scutellum ; scutellum, apex of elytra and pygidium 

 white ; alternate interstices on elytra checkered with black 

 and white, base of third interstice with a tubercle. L. 

 If 1. Eare. T. niveirostris, Yah. 



J5. Transverse ridge on thorax curved, with convexity 

 directed forward. 



Oblong. Black-brown ; antennae and legs yellow-red, 

 latter with black rings; head, rostrum, disc of thorax 

 covered with yellowish -gray hairs ; elytra unequally covered 

 with grayish pubescence, with black and white markings, 

 with a large, common dark spot on suture somewhat behind 

 middle. Disc of thorax with two tubercles. L. 2 1. Eare. 

 "■' T. s epic old, Herbst. 



Anthrihiis. 



Oblong, convex. Black-brown ; very closely covered 



