150 RHYNCHOPHORA — CURCULIONIDAE. 



upper-side as above, central line and sides of thorax, suture 



and some interstices of elytra often rather lighter coloured. 



Scutellum rounded, raised. L. Ih 1. Kare. aS^. canus, Herbst. 



II. Upper-side with reddish-brown matted hairs. 



Ovate, convex. Black ; under-side with white scales ; 

 upper-side as above, thorax with tliree indistinct whitish 

 lines, each interstice on elytra with a line of white scales. 

 Thorax broad, deeply constricted toward apex ; elytra with 

 fine punctured striae, interstices flat. L. 1^1. Not common. 



S. potentillae, Germ. 



b. Elytra with a common dark spot at suture. 



I, Upper-side with grayish scales ; length 1| line. 



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

 tarsi red-brown ; covered with white scales, thorax with a 

 large dorsal spot, somewhat narrowed in front, light brown; 

 elytra with a common spot on anterior half of suture light 

 brown. Thorax nearly as long as broad, constricted toward 

 apex ; elytra with indistinct punctured striae. Not un- 

 common. S. arenariae, Steph. 



II, Upper-side with yellowish-red scales ; length 

 1— 1| Hne. 



Black ; base of antennae, tibiae and tarsi reddish-brown ; 

 under-side with white, upper-side with grayisli-yellow 

 scales, two broad longitudinal lines on thorax and an 

 oblong spot on anterior half of suture of elytra brown. 

 Not very common. S. primitits, Herbst. 



jB. Base of thorax tolerably straight ; elytra oblong-ovate ; 



somewhat convex. 



Oblong-ovate. Black; rostrum, antennae and legs pitch- 

 brown; upper-side covered with brown, under-side with 

 white scales. Thorax abruptly narrowed in front, con- 

 stricted toward apex, closely and finely punctured ; elytra 

 with fine punctured striae, interstices flat, with rows of 

 short white bristles. L. 1 — 1\ 1. Eare. 8. sodalis, Germ. 



Tychius. 



A, Funiculus of antennae with seven joints. 

 a. Length 1 — If lines. 



I, Kostrum more or less narrowed toward apex. 



