AMERICAN COMPONENTS OF THE TENTYRIIN^E 335 



elytra very long, fully three-fourths longer than wide, rapidly 

 ogival in apical fourth, rather widest well behind the middle, 

 where they are more than a fifth wilder than the prothorax, fully 

 four times as long, the punctures rather small but distinct, only 

 moderately close-set in finely and barely impressed regular series, 

 only slightly larger laterally, the intervals minutely, feebly punc- 

 tured in very uneven single series throughout ; abdomen very 

 minutely, feebly and sparsely punctulate medially. Length 6.5-6. 7 

 mm.; width 2.6 mm. California (San Diego). 



depressulus n. sp. 



Form more convex, the prothorax very distinctly narrowed at apex... 7 

 7 — Frontal margin perfectly even, not at all biemarginate, the epi- 

 stoma not at all advanced, with the sinuation scarcely appreciable- 

 Body elongate-oval, shining, brownish-testaceous, the under sur- 

 face and legs pale, rufous ; head rather coarsely punctured, 

 sparsely on the vertex, densely anteriorly as usual, the sides con- 

 verging, moderately arcuate, the angles rather broadly rounded ; 

 prothorax three-fourths wider than long, widest at about basal 

 third, the sides almost evenly arcuate and distinctly converging 

 from base to apex, the latter only moderately sinuate, with the 

 angles rather obtuse, the punctures fine and notably sparse toward 

 the middle, becoming closer and elongate, then still coarser, dense 

 and longitudinally plicate in about lateral fourth, the median im- 

 pression at base very feeble ; elytra two-thirds longer than wide, 

 more than three times as long as the prothorax and evidently 

 wider, gradually rather acutely ogival at apex, the sides broadly 

 and evenly arcuate, not inflated posteriorly, the punctures some- 

 what coarse, deep, extremely close-set, forming slightly uneven, 

 unimpressed series, the interstitial punctures fine, feeble, not close- 

 set and forming very uneven single series ; abdomen finely and 

 feebly rugulose, finely but not very sparsely punctate medially 

 Length 6.7 mm.; width 2.5 mm. Arizona angustus Csy. 



Frontal margin with two very feeble emarginations, the epistoma 

 feebly but evidently advanced, broadly sinuate at apex ; oblique 

 sutures rather deeply impressed 8 



8 — Form elongate-oval, shining, blackish, the elytral suture and fine 

 lines along the elytral intervals toward the suture, under surface 

 and legs dark rufous ; head rather coarsely, closely punctate, less 

 coarsely and very densely so and paler in color apically, the sides 

 converging and arcuate ; prothorax three-fourths wider than long, 

 the apex deeply sinuate, with the angles rather acute, about four- 

 fifths as wide as the base, the sides evenly converging and broadly, 

 evenly and rather feebly arcuate throughout, the punctures 

 rather small but deep and distinct though sparse in about median 

 third, then gradually becoming very dense, rather coarse and 

 somewhat confluent toward the sides ; scutellum moderate, trans- 

 verse, narrowed at base; elytra two-thirds longer than wide, 

 between three and four times as long as the prothorax and slightly 



