TKIP.K XV. CLEOXIXI. 



329 



Fig. 89. Cleonns 

 quadrilineatus Chev. X 

 3. (After Chittenden.) 



Durham and East Wakefield, N. H., May. 15. Meriden, 

 Conn. Ranges from Maine to the north shore of Lake Superior, 

 Telegraph (."reek, B. C., southern Colorado and New Mexico. 



II. Cuooxus Schon., 1820. 



The differences between this genus and the next are difficult 

 to state. Casey says that the species of Linix 

 "form a very homogeneous assemblage, dis- 

 tinguishable at once from C1 con its by the 

 longer, more slender, cylindrical and less pub- 

 escent beak in which the modifications due to 

 sex are much more apparent than in the latter 

 livnus." While that niav be true where one has 



" * 



a large assemblage of species at hand, it is dif- 

 ficult to set forth in a key any definite char- 

 Meter which sharply defines the two genera 

 and which will enable the student to separate 

 isolated forms. Dr. E. A. Schwarz, the Xestor 

 of living American Coleopterists, in a recent letter to the writer 

 said: "Xo one has hitherto been able to point out any generic 

 differences between 1/i.rus and Clconns, but they differ in habitus 

 and mode of life." The differences between the two genera as set 

 forth in the key are the only ones given by both LeConte and 

 Casey, but they are gradational and not fixed. 



KEY TO SPECIES OF CLEOXTS. 



a. Second joint of funicle distinctly shorter than first; beak stout, two- 

 thirds or more the length of thorax. 



b. Body stout, elongate-oval; beak distinctly dilated at apex; thorax 



and elytra each with four broad stripes of gray pubescence; 



length 1214 mm. 492. CARIXICOIXIS. 



bb. Body more slender, subparallel; beak less stout, not at all dilated 



at apex. (Fig. 89.) 



c. Elytra nearly uniformly densely clothed with ash-gray pubescence, 

 sometimes with a narrow subsutural and wider submarginal 

 stripe more sparsely pubescent; beak finely and densely punc- 

 tate; length 9 10 mm. 493. CALAXDROIDES. 

 cc. Elytra rather sparsely pubescent, more densely so along the sides; 



beak more coarsely, less densely punctate. 



(1. Beak distinctly carinate, separated from the head by a deep 

 transverse groove; thorax with four stripes of denser, paler 

 pubescence. 494. FKOXTALIS. 



<id. Beak not or feebly carinate, the transverse groove at base ab- 

 sent; thorax with pubescence evenly distributed. 



495. SfBCYLIXDRKTS. 



