122 RHYNCHOPHORA — CURCULIONIDAE. 



I, Interstices on elytra finely wrinkled. 



Brown-black ; antennae and legs yellow-brown ; upper- 

 side checkered with fine gray and reddish scalelilvc hairs, 

 base of suture lighter, under-side with white scales. Thorax 

 with a small pointed tubercle on each side. L. 1\ 1, 

 Eather common. B. inconspectus, Herbst. 



II. Interstices on elytra with a few scattered tu- 

 bercles. 



Short ovate, not very convex. Black ; antennae and 

 legs reddish-yellow; under-side thickly covered with wliite 

 scales ; thorax sometimes with three white lines and elytra 

 speckled with white. Thorax with two tubercles, apical 

 margin scarcely raised ; elytra with more distinct punc- 

 tured striae than in B. castor. L. | — 1 1. Moderately 

 common. B. b7'uchoides, Herbst. 



JB. Thorax with four tubercles. 



Oblong-ovate. Black; tibiae red-yellow; under-side and 

 base of suture of elytra thickly covered with grayish- white 

 scales ; thorax and elytra sprinkled with white scales. 

 Apical margin of thorax scarcely raised, but with two small 

 tubercles in middle, surface closely granulate, witli an 

 indistinct central furrow and with blunt tubercles on each 

 side beliind ; elytra with moderately deep punctured striae, 

 interstices with a fine network of scratches. L. f — 1 1. 

 Eare. B. denticollis, Gyll. 



PhytoMus. 



Ji, Antennae inserted in middle of rostrum ; fourth tarsal 

 joint as long as all the rest together. 



a. Tibiae and tarsi scantily fringed ; thoracic tubercles 

 strong. 



Black, dull ; antennae and legs (except knees) reddish- 

 yellow ; under-side, head, sides and central line of thorax, 

 and sides and suture of elytra closely, rest of upper-side 

 more scantily covered with yellowish or greenish-gray 

 scales. Thorax much broader than long, narrowed in 

 front, with two very small, pointed tubercles at anterior 

 margin and a much larger tubercle on each side near base ; 

 elytra much broader than thorax, with fine but deep punc- 

 tured striae, interstices broad, the fifth more raised than 



