374 CASEY 



longer than wide, three and one-half times as long as the pro- 

 thorax, and, at apical two-fifths, about one-half w^der, the sides 

 broadly arcuate, the apex more rapidly and obtusely ogival, the 

 humeri and punctuation similar, the punctures fine and very shal- 

 low ; metasternum similar, polished, the abdomen subopaque, 

 minutely, sparsely punctate medially. Length 1^.4 mm.; width 



2.4 mm. Utah (Leeds), — H. F. Wickham brevipenne n. sp. 



Form much more slender, rather pale and uniform testaceous through- 

 out, shining ; head nearly as in brevipenne but as long as wide, 

 finely, very sparsely punctured medially and without the impressed 

 line, the antennte (^) more than half as long as the body, with 

 the last joint ensiform and as long as the preceding five joints 

 combined ; prothorax small, nearly three-fourths wider than long, 

 formed nearly as in brevipenne but with the apex perceptibly 

 wider than the base, similarly broadly sinuate but with the angles 

 decidedly blunt and not acute, the basal angles obtuse but minutely 

 prominent, the sculpture almost as in castaneu?n though rather 

 coarser and with a more irregular impunctate median line; 

 scutellum similar ; elytra nearly as in castaneu??i^ much narrower 

 and more acute at tip than in brevipenfie^ four times as long as 

 the prothorax, and, at the middle, one-half wider, the sides parallel 

 and evenly arcuate, the humeri broadly rounded, widely exposed 

 at base, the punctures fine, shallow but unusually muricate, close- 

 set in entire series, the intervals irregularly uni-.or biseriately and 

 subsimilarly punctate as usual ; the surface becomes more polished 

 and the serial punctures coarser on the vertical flanks toward 

 base. Length 5.0 mm. ; width 2.0 mm. Nevada (Hawthorne) , 

 — H. F. Wickham ensifer n. sp. 



4 — Body rather stout, convex, shining, pale yellowish-testaceous 

 throughout ; head about as long as wide, rather coarsely, sparsely 

 and simply punctate jDosteriorly, the punctures smaller, dense and 

 obliquely strigose anteriorly, small, separated and simple on the epi- 

 stoma, the supra-ocular carina strong ; mentum minutely, sparsely 

 punctate ; antennae long and slender, the last joint as long as the two 

 preceding combined and bristling with short erect setje ((5^), or 

 much shorter and only about a third longer than the tenth ( 9 ) > 

 prothorax nearly two-thirds wider than long, widest at apical two- 

 fifths, where the sides are narrowly and subprominently rounded, 

 thence converging and straight to the rectangular and slightly 

 everted basal angles, less converging and straight to the acute and 

 anteriorly prominent apical angles, the apex broadly subtruncate 

 between the advanced angles and about as wide as the base, which 

 is broadly lobed at the middle, the punctures rather coarse, sparsely 

 scattered rather narrowly along the middle, thence gradually 

 denser and coarser but not confluent to the sides ; scutellum fully 

 as long as wide, acutelv rounded, constricted at base ; elytra nearly 

 as in castanetun^ much broader and relatively shorter in the female 

 than in the male, the punctures rather small, shallow, feebly 

 muricate, close-set in subentire and unimpressed series, the inter- 



