C'OLEOPTKUA. 179 



testaceous throughout, very short, not as long as the head, club scarcely as 

 long as the first two joints together, second joint not one-half as long as the 

 first. Prothorax widest at two-fifths the length from the base where it is 

 distinctly more than twice as wide as long ; sides almost equally convergent 

 anteriorly and posteriorly and very feebly arcuate ; apex distinctly shorter 

 than the base, broadly emarginate ; base broadly arcuate, very feebly sinuate 

 toward each basal angle, the latter very obtuse and very slightly rounded : 

 disk rather convex, finely and closely punctate; punctures round, shallow 

 and variolate, separated by two to three times their own widths. Scutelluni 

 small, ogival, as long as wide. Elytra at base very slightly narrower than 

 the pronotum, widest at two-thirds the length from the apex where they are 

 but very slightly wider; sides very feebly arcuate ; disk abruptly and very 

 broadly rounded behind, slightly less than one-half longer than wide and 

 about three times as long as the pronotum, very minutely granuloso-reticu- 

 late, punctate ; punctures impressed, rather large, arranged in rows, the 

 sutural row being composed of smaller punctures much more closely placed ; 

 between this and the next regular row there is a wide area of larger punc- 

 tures irregularly disposed ; along the middle of the epipleurae there is a 

 row of stout erect setae. Legs rather long and slender ; tarsi very slender, 

 first joint of the posterior equal in length to the second, more robust and 

 strongly davate, third very slightly shorter, fifth about one-fourth longer 

 than the first ; claws very strongly compressed, strongly toothed, tooth 

 slightly shorter and more robust than the apical portion ; posterior tibial 

 spurs equal in width, slender, very unequal in length. Abdominal segments 

 imi)unctate except a close and somewhat irregular row of veiy large setigerous 

 punctures arranged transversely along the middle of each, those of the last 

 segment being scattered over nearly the entire disk ; pygidinni small, semi- 

 circularly rounded throughout beneath, disk very coarsely punctate, punc- 

 tures very shallow and variolate, surface irregularly undulated, upper 

 margin entirely exposed by the elytra. Length 7.5 mm. ; width 4.0 mm. 



Arizona (Morrison), 1. 



D. popillO n. sp. — Form moderately slender. Color throughout rather 

 dark brownish-red, head slightly darker, tarsi slightly paler than the tibiae ; 

 dorsal surface moderately shining, rather sparsely but distinctly clothed with 

 long erect rather coarse setae which are slightly longer, but scarcely more 

 dense, beneath. Head about one-third wider than long, moderately con- 

 vex, coarsely and very densely punctate ; punctures sofnewhat transversely 

 coalescent on the front, rugulose or scabrous ; clypeal suture narrow and 

 well-defined, transv^-se, bent slightly posteriorly near the eyes and feebly 

 sinuate for a short distance in the middle; clypeus strongly transverse, 

 apical margin broadly emarginate through three-fifths of its width, sides very 

 widely divergent to the eyes, forming at the sides of the emargination two 

 short rounded teeth, margin strongly reflexed throughout, most broadly so at 

 the apical projections ; labrum bilobed, very transverse, having a transverse 

 discal ridge, apical margin very deeply and narrowly sinuate; last joint of 

 the maxillary palpi srimewhat lunate, elongate, nearly as long as the two 

 preceding together, the latter equal in length ; antennae short, first joint 



