3IO CASEY 



nally confluent toward the sides; scutellum moderately large, 

 transversely oval ; elytra distinctly less than one-half longer than 

 wide, equal in width to the prothorax and between two and three 

 times as long, obtusely ogival at tip, the sides very slightly arcu- 

 ate, the series more or less uneven, composed of moderately 

 coarse, not very close-set punctures, which are largely confused 

 toward base; abdomen minutely, sparsely punctate medially. 

 Length 6.2-7.0 mm. ; width 2.65-2.83 mm. California (Colo- 

 rado Desert) convexicolle Lee. 



Form somewhat as in convexicolle but a little more elongate, stout, 

 suboval, convex, polished, black with a piceous tinge, the legs 

 and antennae piceo-rufous ; head well developed, not very coarsely 

 and only moderately closely punctate, the punctures finer but also 

 separated anteriorly, coarse and confluent toward the eyes, the 

 sides converging and broadly arcuate ; prothorax three-fourths 

 wider than long, widest well behind the middle, the sides arcuate, 

 gradually and rather strongly converging and less arcuate anteri- 

 orly, the basal angles right and minutely prominent, the punc- 

 tures moderately coarse, deep and close-set, becoming gradually 

 much coarser and very dense laterally; elytra nearly one-half 

 longer than wide, very obtusely ogival at apex, very evidently 

 wider than the prothorax and three times as long, the sides feebly 

 arcuate, the punctures small but deep, confused and moderately 

 sparse suturally, moderately coarse, strongly muricate and close- 

 set in equal close-set series laterally, a little coarser near the hu- 

 meri; abdomen minutely, sparsely punctate medially. Length 

 6.8 mm.; width 3.0 mm. California (southern) integer n, sp. 



Form stout, moderately convex, shining, dark castaneous, the under 

 surface and legs dark rufous ; head rather coarsely, deeply and 

 moderately closely punctate, the sides before the eyes strongly 

 converging and evenl}', moderately arcuate ; prothorax transverse, 

 almost twice as wide as long, very slightly narrower than the elytra, 

 slightly narrowed toward the broadly sinuate apex, the sides rather 

 strongly, subevenly arcuate, the punctures very coarse and deep, 

 close-set, becoming gradually but little coarser but longitudinally 

 confluent toward the sides, the surface obliquely subrugulose an- 

 teriorly and posteriorly almost throughout the width ; scutellum 

 small, but little wider than long, angulate and punctured ; el3'tra 

 one-half longer than wide, ogival at tip, with the sides broadly 

 arcuate, the series rather uneven but distinctly traceable through- 

 out, except near the suture, the punctures moderately coarse and 

 close-set, not confused toward the humeri ; abdomen minutely, 

 sparsely punctate medially. Length 5.7-6.6 mm. ; width 2.4- 

 2.85 mm. Southern California probatum n. sp. 



39 — Form stout, oblong-oval, rather strongly convex, alutaceous, 

 piceous-black, the head, prothorax, sterna and legs dark rufus, the 

 abdomen black except at apex ; head coarsely, closely and un- 

 evenly punctate, with a large impunctate occipital area, the sides 

 before the eyes very strongly converging and broadly arcuate to 



