AMERICAN COMPONENTS OF THE TENTYRIIN^ 325 



the middle, with the sides broadly arcuate, the humeri scarcely at 

 all exposed at base ; punctuation nearly as in ovalis^ the serial 

 punctures becoming very coarse and close-set toward base but 

 gradually much smaller and very feeble posteriorly ; abdomen 

 finely, sparsely punctate. Length 4.7 mm.; width 3.0 mm. 

 Arizona (Holbrook), — H. F. Wickham inops n. sp. 



Body oblong-oval, stout, polished, pale rufo-castaneous ; head mod- 

 erate, polished, rather coarsely, sparsely punctate, the sinuations 

 feeble, the epistoma very feebly produced, broadly truncate ; pro- 

 thorax scarcely twice as wide as long, the apex evidently narrower 

 than the base, the sides rather strongly arcuate, more converging 

 and straight, with the edge serrulate anteriorly, not sinuate before 

 the basal angles, which are obtuse and not at all prominent, the 

 punctures sparse, moderately fine, becoming rather coarse and 

 only slightly muricate, close though not crowded laterally, the 

 edge very finely and feebly reflexed ; scutellum moderate, slightly 

 transverse ; elytra a little more than one-half longer than wide, 

 gradually parabolic in apical two-fifths, nearly three and one-half 

 times as long as the prothorax but only very slightly wider, the 

 sides feebly arcuate, the humeri not exposed at base ; punctures 

 coarse, especially toward the sides, rather close-set in even and 

 unimpressed series throughout, scarcely at all muricate, the inter- 

 stitial punctures widely spaced in very uneven single series ; 

 abdomen finely, sparsely punctate medially ; anterior tibiae short 

 and thick, with the outer spur very strong and scarcely oblique, 

 the outer edge obtusely serrate, the serrules alternating with short 

 thick spinules. Length 5.4 mm. ; width 2.4 mm. Arizona 

 (Riverside), — H. F. Wickham aliena n. sp. 



34 — Form elongate-oval, convex, polished, pale testaceous through- 

 out; head rather finely, submuricately and not densely punctate, 

 the sides feebly arcuate as well as converging ; prothorax twice as 

 wide as long (?) or slightly less (cJ*), strongly narrowed from 

 base to apex, with the sides evenly arcuate (cj*) or more abruptly 

 converging and subsinuate near the base ( ? ) , evidently serrulate, 

 the apex deeply sinuate, the punctures sparse, moderately fine and 

 scarcely muricate and with a partial impunctate median line me- 

 dially, becoming larger and more scabrous but still well separated 

 toward the sides ; elvtra rather less than one-half longer than 

 wide, between three and four times as long as the prothorax and 

 evidently wider, obtusely ogival at tip, the sides broadly arcuate, 

 the humeri not exposed at base, the punctures shallow, only 

 moderately coarse, arranged in even, unimpressed and close-set 

 series, not notably coarser toward base, the interstitial punctures 

 only slightly smaller though more widely spaced in nearly even 

 series ; abdomen minutely, remotely punctulate medially. Length 

 4.3-4.8 mm.; width 1.8-3. 15 mm. Texas (El Paso), — G. W. 

 Dunn serrata Lcc. 



Form stouter, scarcely so convex, oblong-oval, shining, darker testa- 

 ceous throughout; head as in serrata^ finely, sparsely punctate 



