64 CASEY 



punctures are finer, less dense and more inconspicuous medially toward 

 base; elytra almost evenly convex, without trace of costae except feebly 

 toward tip, the surface evidently though finely striate and more coarsely 

 sculptured in about inner haK, the fine punctures sublaterally not close- 

 set and rather uneven; outline nearly as in pimalicus; abdominal seg- 

 ments finely and densely punctate only toward base. Length i9-3- 

 24.5 mm.; width 7.0-10.2 mm. Utah (St. George), — H. F. Wickham. 



amplus n. sp. 



A — Body more elongate, bright brassy-cupreous in color; head nearly 

 similarly rugose but more finely, closely punctate toward the eyes 

 and on the occiput; prothorax twice as wide as long, nearly as in 

 amplus but wider at base, the basal angles not so acute or everted 

 but extending sensibly beyond the elytral humeri; elytra more elon- 

 gate, with the sides very rounding and converging posteriorly, very 

 much more gradually so than in amplus, the surface less rugose. 

 Length 23.5 mm.; width 9.0 mm. Utah (St. George), — H. F, 

 Wickham aerata n. subsp. 



9 — Very stout, elongate-oval in form, convex, only moderately shining, 

 bronzy-ffineous in color, the pubescence of the elytra very short, sparse, 

 evenly distributed, without trace of vittate appearance; head not densely 

 pubescent, about equally rugose and densely punctate; antennae (9) 

 attaining about basal third of the pronotum, the prothorax large, but 

 little narrower than the elytra, two-thirds wider than long, the sides 

 subevenly rounded, becoming strongly convergent anteriorly, the basal 

 angles everted and acute; surface with the median line, which is irregu- 

 larly enlarged anteriorly, and a few small scattered spots elevated and 

 smooth, the major part of the surface, however, rather coarsely, deeply 

 and densely cribrate; elytra with the sides just visibly converging and 

 slightly arcuate for three-fifths, then rather rapidly rounding, becoming 

 oblique and feebly arcuate to the apex ; surface subequally and densely 

 punctate throughout, the striae especially evident in four pairs on each, 

 the first pair not evenly arcuate to the tip but becoming more strongly 

 and externally arcuate in about apical fourth; under surface in great 

 part finely though not densely punctate, very briefly and inconspicu- 

 ously pubescent. Length 24.5 mm. ; width 9.8 mm. Utah (St. George) , 

 — H. F. Wickham egreglus n. sp, 



10 — Elytra with obsolescent smooth costae or very evident vestiges of dis- 

 integrated costulation, the surfaces between the very feeble elevations 

 somewhat concave and finely, densely punctate except suturally; 

 body moderately stout, parallel, rather convex, greenish or viridi- 

 aeneous to feebly cuprascent and rather shining, the pubescence dis- 

 tinct and somewhat longer than usual; head rather smaller than usual, 

 the eyes brown in all examples examined, the front about equally 

 rugose and finely, densely punctate; antennae moderate, the third joint 

 barely as long as the fourth ( c?) or a little longer( $ ) ; prothorax two- 

 thirds wider than long, narrowed anteriorly, arcuate at the sides, the 

 basal angles very variable in prominence and eversion; surface with 

 finer, dense punctures and large irregular polished elevations, the me- 



