234 RHYNCHOPHORA — CURCULIONIDAE. 



white scales. L. 2| 1. Not uncommon. 



S. Waterhousei, Wall. 



TI. Interstices on elytra flat. 



Oblong-ovate. Black ; base of antennae, tibiae and tarsi 

 red-yellow ; closely covered with gray, brown or brownish- 

 yellow scales ; thorax with a fine central line and a broader 

 one on each side lighter ; elytra with long, upright white 

 bristles and with black spots. Thorax as broad as, or 

 somewhat broader than long, deeply and somewhat diffusely 

 punctured, sides nearly straight ; scales on elytra placed 

 more closely than in >S'. lineellus, and bristles longer. L. 1 J 

 — If 1. Common. S. crinitus, 01. 



C. Thorax much rounded at sides ; eyes very prominent. 



a. Elytra with sides almost parallel and apex regularly 

 rounded. 



I, Pubescence on elytra more diffuse and shorter, 

 black, spotted with gray or brown. 



Oblong. Black ; covered tolerably evenly with fine, 

 recumbent, gray pubescence, mixed beneath with gray 

 scales. Head fiat, deeply and rather diffusely punctured ; 

 rostrum and forehead with a deep furrow ; thorax short, 

 broader than long, deeply and rather diffusely punctured, 

 sides rounded, anterior margin raised ; elytra twice as long 

 as thorax, with fine punctured striae. L. 2| — 3 1. Not 

 uncommon. S. cambricus, Steph. 



TI. Pubescence on elytra closer and longer, gray, 

 nearly unicolorous. 



Oblong. Black, rather shiny ; antennae rust-red ; covered 

 on upper-side with gray pubescence, elytra more or less in- 

 distinctly variegated with brown, on under-side with 

 grayish-white scales. Forehead with a short furrow ; 

 thorax not longer than broad, diffusely punctured, dis- 

 tinctly constricted toward apex, sides slightly rounded ; 

 elytra with distinct punctured striae, L. 2 J — 2f 1. Eare. 



S. cinerascens, Pab. 



b. Elytra very broad, and wider behind than in front. 



Oblong. Black ; scape of antennae, tibiae and tarsi red- 

 yellow ; with gray scales ; thorax with three light lines. 

 Head punctured ; rostrum and forehead with , a very dis- 

 tinct central furrow ; thorax convex, scarcely broader than 



