Coleopterological Notices, III. 183 



Arizona. 



A fine large species, allied to albove stilus, but differing in its very 

 much more robust form, and in the more conspicuously enlarged 

 punctures of the elytral striae at the points mentioned in the de- 

 scription. It is represented by a single specimen which is probably 

 a female. 



D. aLfoovestitllS n. sp. — Elongate-ovoidal, somewhat convex, black, 

 rather dull in lustre, the vestiture white, extremely dense, squamiform. 

 Head and beak densely clothed above, the latter subglabrous at the sides 

 and narrowly, feebly subcarinate along the middle, three-fourths longer than 

 wide and much shorter than the prothorax. Prothorax but slightly wider than 

 long ; sides parallel and nearly straight, angulate anteriorly, the disk tubu- 

 larly produced at apex for one-sixth the length, the apex subtruncate, three- 

 fourths as wide as the base, the latter broadly angulate and feebly bisinuate ; 

 disk very coarsely but sparsely and unevenly foveo-variolate, the interspaces 

 finely, densely punctate, generally with a very fine feeble medial carina 

 throughout the length ; pubescence dense laterally, the oblique margins of 

 the dense areas emarginate in the middle. Elytra twice as long as wide, not 

 quite three times as long as the prothorax and two-fifths wider than the latter ; 

 sides parallel and nearly straight, obliquely convergent in apical third, the 

 apex narrowly subtruncate ; humeri slightly exposed and obliquely truncate ; 

 disk with series of rather large, moderately distant punctures, the dense ves- 

 titure denuded only in rather small uneven spots especially near basal and 

 apical third and near the middle line of each elytron. Under surface and' 

 legs extremely densely clothed with pure white squamiform pubescence, the 

 legs rather slender, the femora not annulate. Length 9.4-11.8 mm. ; width 

 3.8-4.8 mm. 



California (Los Angeles and Colton). 



This species is not very closely allied to any other, and may be 

 easily known by its general similarity in form to molitor, by its 

 exceedingly dense, and, in perfect specimens, brilliant white vesti- 

 ture which is not so easily removable as in the molitor, but which 

 — as in that species and especially in less fully pubescent specimens, 

 is frequently denser along the alternate intervals of the elytra. It 

 is represented in my cabinet by a series of six specimens. 



D. molitor Lee. — Proc. Phil. Acad., 1853, p. 78 (Cleonus) ; Centrocleonus 

 mol.: Proc. Am. Phil. Soc, XV, p. 146. — Oblong-oval, rather convex, black, 

 feebly shining, somewhat densely clothed with recumbent squamiform pubes- 

 cence which is easily removable, rather uniformly distributed but a little 

 denser along the alternate intervals of the elytra. Head and beak coarsely, 

 sparsely foveate. Prothorax generally slightly conoidal and very nearly as 

 long as wide, angulate and constricted near the apex. Elytra quite distinctly 

 less than twice as long as wide, fully three times as long as the prothorax 



