CEUTHORHYNCHUS. 131 



punctured striae, interstices somewliat wrinkled. L. f 1. 

 jSTot uncommon. C. cochleariae, Gyll. 



S S, Antennae brown ; thorax without lateral 

 tubercles. 



Short ovate. Black, diffusely covered with white scales ; 

 antennae brown. Vertex of head ridged ; thorax closely 

 and distinctly punctured, Avith an indistinct central furrow, 

 rather deeply constricted toward apex, anterior margin 

 raised, base slightly bisinuate ; elytra with deep punctured 

 striae, interstices narrow, finely wrinkled. L. f 1. Scarce. 



C. constrictus, Marsh. 

 2, Legs red. 



Black; sometimes powdered with yellowish-green; an- 

 tennae, legs and rostrum reddish ; base of suture of elytra 

 and the breast covered with white scales. Eostrum very 

 long and thin ; thorax with scarcely any central furrow, 

 with a tubercle on each side ; elytra much broader than 

 thorax, shoidders prominent, with deep punctured striae, 

 interstices wrinkled with tubercles and with rows of gray 

 hairs. L. 1 1. Common. C. ericae, Gyll. 



jB. Femora toothed. 



a. Anterior margin of thorax distinctly notched or 

 toothed at sides. 



Black ; under-side closely covered with white scales, 

 upper-side with brown ones ; thorax with posterior margin 

 and three narrow lines, elytra with various confused lines 

 white. Elytra with spines toward sides and at apex. L. 2 

 — 2| 1. Moderately common. G. echii, Fab. 



b. Anterior margin of thorax simple. 



I, Outer margin of tibiae (somewhat before middle) 

 with a large triangular tooth, thence cut obliquely 

 to apex, with a row of bristles. 



Black, dull ; elytra with a spot at side and another, 

 crescent-shaped, at apex formed of white scales ; under-side 

 thickly covered with white scales ; legs red-brown. Thorax 

 with a depression before scuteUum, without lateral tubercles, 

 central furrow very indistinct; elytra with feeble striae. 

 L. 1| 1. Scarce. C. viduatus, Gyll. 



XZ. Tibiae somewhat dilated and rounded at apex, 

 usually bearing bristles, but not toothed. 



K 2 



