82 MEMOIRS ON THE COLEOPTERA 



dark castaneous, the basal joint metallic green; prothorax subparallel, 

 widest at the middle, with very evenly rounded sides from base to 

 apex, the ambient bead strong but obsolete toward the middle of the 

 apex; surface finely, sparsely punctate, more strongly toward the 

 sides, the interspaces with a system of close and feebly impressed 

 though not very minute punctulation; scutellum wider than long, 

 sparsely punctate; elytra (9 ) somewhat inflated with arcuate sides, 

 gradually narrowed basally, very obtusely rounded at apex, much 

 wider than the prothorax, a fourth longer than wide, the lateral 

 edges narrowly subdeplanate, rather more widely posteriad, the epi- 

 pleura almost equally wide to the transverse part of the apex, where 

 they abruptly terminate; surface more shining, with fine and barely 

 at all impressed series of small punctures; intervals nearly smooth, 

 except the second and fourth, where the punctures are confused 

 and larger than those of the striae, more broadly confused on the 

 second interval basally; pygidium transversely, confusedly rugulose, 

 sericeous, shining and smoother apically, the sides beneath impressed 

 along the edges; hairs of the metasternum short, sparse and barely 

 evident. Length (9) 29.0 mm.; width 16.9 mm. Texas (Davis 

 Mts., Great Bend of the Rio Grande), H. W. Wenzel. . woodi Horn 



Prothorax much shorter, fully twice as wide as long or more; legs pearly 

 grayish-violet, the tarsi of nearly the same color as the tibia?, the 

 femora always paler in tint 3 



3 Female with the broad part of the epipleura extending far behind the 

 middle; thoracic angles rounded, scutellum wider than long. Body 

 very broadly oblong-oval, moderately shining, pale golden-green 

 throughout; head large, three-fifths as wide as the prothorax, with 

 moderate shallow punctures, sparse basally, becoming closer an- 

 teriorly and rather dense but ill-defined on the clypeus, which is very 

 broadly rounded and feebly reflexed at apex and more than twice as 

 wide as long, the eyes small; antennae dark brown, with metallic 

 basal joint; prothorax more than twice as wide as long, the moder- 

 ately prominent apical angles broadly rounded, the obtuse basal 

 angles similarly rounded; base very broadly and feebly lobed medi- 

 ally, the ambient bead strong and thick laterally, entire at base but 

 very broadly obsolete at apex; punctures rather fine, very feebly 

 impressed and sparse throughout; scutellum ogival, punctured 

 slightly toward base; elytra a fifth longer than wide, much inflated 

 before the middle, with the flanks there becoming distinctly expla- 

 nate and a third wider than the prothorax; apex circularly rounded; 

 punctures notably strong, confused, sparse, finer and sparser later- 

 ally, having a few irregular series basally, the sutural series clearly 

 defined throughout; pygidium sericeous and rugosely sculptured, 

 smoother apically, the impunctate median line tumid, the oblique 

 sides impressed; intermesocoxal tumidity very small and narrow, 

 the prosternal well developed; hind coxa? very large, but little more 

 than twice as wide as long. Length (9 ) 31.5 mm.; width 18.0 mm. 

 Arizona (Cochise Co.) , ampliata n. sp. 



Female with the broader part of the epipleura narrower than in the pre- 

 ceding and not extending distinctly behind the middle; scutellum 



