126 MEMOIRS ON THE COLEOPTERA 



Tibiae and tarsi always more or less pale, the anterior tarsi darker in the 

 male as a rule; pygidium and entire under surface very pale ochreous 

 yellow, the metasternum and abdomen, excepting the last segment, 

 a little darker brown in the male 2 



2 Clypeal suture fine but very distinct throughout the width, strongly 

 sinuous medially; hind tarsi notably long, very much longer than the 

 tibiae. Body (d 71 ) oblong-oval, very shining, dark red-brown above, 

 the pronotum broadly, except at the middle, and the base narrowly, 

 flavate; elytra black, with one or two short external pallid streaks; 

 head half as wide as the prothorax, the surface throughout very 

 even and but slightly convex, finely but deeply, loosely punctate and 

 notably shining in every part; clypeus large, one-half wider than 

 long, semicircular but with the median, more reflexed part of the 

 apex a little more parabolic in curvature; antennal club but little 

 longer than the preceding six joints; prothorax broad though not 

 quite twice as wide as long, five-sixths as wide as the elytra, in form 

 nearly as in the preceding, the very fine sparse punctures rather more 

 evident but with the sides barely more prominent medially; scutellum 

 pale ochreous throughout, the sparse punctures extremely minute; 

 elytra as in the preceding species, nearly smooth but with the three 

 feebly defined geminate series on each rather more evident; py- 

 gidium nearly similar; abdomen with rather strong diffused close-set 

 punctures throughout basally, as well as laterally; large claw-joint 

 of the anterior male tarsi almost as long as all the others combined. 

 Length (cf) 17.7 mm.; width 9.5 mm. Arizona (Prescott). A single 

 male example perspicua n. sp. 



Clypeal suture obsolete medially; entire surface of the head generally 

 more or less alutaceous, with moderately small but deep, loose 

 punctuation; scutellum pale, with brownish margins as in perspicua; 

 general coloration and shining lustre throughout nearly as in that 

 species, excepting the elytra of zuniella; hind tarsi not so long as in 

 the two preceding species 3 



3 Form stout and oblong-oval as in the two preceding species, the 

 coloration as in perspicua; head about half as wide as the prothorax, 

 the clypeus (9) semicircular, with slightly more paraboloid apex, 

 nearly twice as wide as long, or (cf ) not quite so transverse and with 

 the sides becoming nearly straight and subparallel in about basal 

 half; surface of the front rather abruptly sloping to the upper margin 

 of the eyes; antennal club very moderate, not differing much sexu- 

 ally; prothorax two-thirds wider than long, the sides broadly rounded, 

 becoming parallel and straighter viewed dorsally in about basal 

 half, converging and nearly straight apically, differing in this way 

 very decidedly from perspicua, where they are subevenly rounded 

 from base to apex and widest near the middle; apical angles less 

 advanced and blunter at tip than in either of the preceding; basal 

 margin more evidently lobed medially; marginal bead distinct toward 

 the sides; surface smooth, the sparse punctures excessively minute 

 throughout; elytra a sixth longer than wide, relatively much wider 

 than in perspicua and fully two-fifths wider than the prothorax, 

 slightly inflated posteriorly, very broadly obtusely rounded at apex; 



