696 Coleopterological Notices, IV. 



convergent and distinctly arcuate ; apex three- fourths . as wide as the hase ; 

 disk rather coarsely deeply and extremely densely punctate, the punctures 

 polygonally crowded, without median line. Elytra one-third to two-fifths 

 wider than the prothorax and rather more than twice as long, two-thirds 

 longer than wide ; sides parallel and nearly straight in hasal two-thirds, 

 then gradually rounded convergent and sinuate to the apex; humeri right, 

 narrowly rounded ; striae coarse, feebly impressed, coarsely deeply and ap- 

 proximately punctate, the intervals about as wide as the strial punctures, 

 scarcely perceptibly punctate. Under surface rather coarsely, densely punc- 

 tate, the abdomen more finely and sparsely so. Length 2.8-3.0 mm. ; width 

 1.0 mm. 



Arizona. Two specimens. 



PSEUDOPEXTARTHRUM Woll. 



This genus was founded by Wollaston upon a small species from 

 Mexico, resembling Pbloeophagus, and with the anterior coxae ap- 

 proximate as in that genus, but having the antennal funicle 5-jointed. 

 It is distinguished from Pentarthrum by its much less distant an- 

 terior coxae and more abbreviated cylindrical form. 1 now assign 

 to it two other species, having the beak very short, thick but parallel, 

 not constricted at base, though sometimes separated from the head 

 by a br6ad feeble transverse impression. Eyes moderately devel- 

 oped, feebly convex, finely faceted, situated at the upper part of the 

 sides and conspicuous from above; scrobes horizontal, deep, ending 

 at quite an appreciable distance in front of the eye and there flexed 

 abruptly downward. Antennae inserted at basal third, thick, the 

 basal joint of the funicle large, two to five transverse, parallel, sub- 

 equal, closely coarctate, the club continuous with the funicle, and, 

 together with joints two to five, strongly compressed. Scutellum 

 distinct. Metasternum rather long. Anterior coxae closely approxi- 

 mate. Legs short, robust, the tarsi stout with the third joint but 

 slightly wider than the second, the fourth not as long as the re- 

 mainder, arcuate and very slender. 



Pseudopentarthrum differs from Pentarthrinus in its shorter, more 

 parallel form, relatively larger prothorax, in the greater distance 

 between the antennal scrobes and the ej e, in the more compact and 

 compressed antennae, with the club not abrupt, and in its stouter 

 legs. The species may be separated by the following characters: — 



Beak not separated from the head by a pronounced transverse impression ; 

 larger species, the pronotum highly polished rob list Hill 



