CETONIIN.E 361 



areolae are larger and closer, sometimes confluent, entire. Length 

 10.5 mm.; width 4.7 mm. A single example, without indication of 

 locality, from the Levette collection; this specimen is uniformly 

 dark red-brown in color throughout, possibly from immaturity. 



areolatus n. subsp. 



22 Prothorax widest at or slightly behind the middle; pronotal punctures 

 not coarser medially; erect hairs always setiform 23 



Prothorax widest at the hind angles, which are not at all retracted, the 

 pronotal punctures coarser medially, the coarse erect hairs there 

 becoming squamiform 27 



23 Anterior tibiae bidentate as usual, the teeth very obtuse, sometimes 

 worn completely off in old examples 24 



Anterior tibiae slender, distinctly tridentate externally, the upper tooth 

 more than half as long as the next and equally well denned 26 



24 Anterior tibiae very short and broad, less than twice as long as wide, 

 the two external teeth large, triangular; basal thoracic angles very 

 small, feeble and obtuse, projecting about midway on the broadly 

 arcuate edge joining the transversely truncate median part of the 

 base with the sides at slightly behind basal third. Body elongate 

 and rather narrow, very evenly, feebly convex above, the sides of the 

 elytra broadly convex, becoming gradually steeply declivous to the 

 lateral edge, deep black throughout, rather dull above, shining be- 

 neath, the upper surface without trace of erect hairs, the parapleura 

 with short sparse stiff hairs; head densely, not coarsely punctate, 

 feebly convex, very gradually declivous anteriorly, slightly tumid 

 along the middle of the slope, the clypeus strongly reflexed, punctu- 

 late throughout; prothorax less than one-half wider than long, widest 

 near basal third or fourth, the sides thence slightly converging and 

 broadly, evenly arcuate to the apex of the apical processes, the latter 

 well denned by the internal deep cavities, which have a tuft of fulvous 

 hairs, borne from the inner side of the process; surface feebly convex, 

 broadly and feebly impressed along the middle; punctures close, 

 moderate and rather shallow, crescentiform laterally, smaller and 

 densely crowded apically and along the feeble median impression; 

 scutellum with small crescentic punctures, wanting broadly toward 

 the sides; elytra fully three-fifths longer than wide, parallel and not 

 wider than the prothorax, the punctures numerous, rather deep and 

 in the form of acute incised angles or ovals, widely open behind, 

 smaller, rounded and shallow on the flanks; pygidium evenly convex, 

 very densely and rather strongly punctulato-reticulate; legs short 

 and very strongly compressed, broad on the flat side, the hind tarsi 

 rather slender, not very compressed and rather more than half as 

 long as the tibiae. Length 13.8 mm.; width 5.35 mm. Arizona, 

 G. \V. Dunn tibialis n. sp. 



Anterior tibiae less dilated and longer, always more than twice as long 

 as wide, the two teeth never sharply defined and sometimes com- 

 pletely worn away; basal thoracic angles larger, sharp and right or 

 less, more lateral than in tibialis, never abruptly retracted 25 



25 Body stout and massive, large in size, oblong, subparallel, black, 

 the upper surface opaque, the lower shining; erect hairs rather long, 



