3l6 CASEY 



finely, densely but not deeply, muricately punctate, the sides 

 before the eyes strongly converging, evenly and moderately 

 arcuate, the eyes large; prothorax barely twice as wide as long, 

 widest at the middle, where the sides are strongly rounded, thence 

 moderately converging and nearly straight to the obtuse basal 

 angles and more convergent, becoming broadly and just visibly 

 sinuate, to the apical angles, which are right and not prominent, 

 the apex deeply sinuate; punctures rather fine, shallow, close-set, 

 with a narrow impunctate median line from which they become 

 gradually slightly larger, muricate and dense toward the sides ; 

 elytra as in the preceding species, fully a fifth wider than the 

 prothorax, with broadly arcuate sides, the punctures fine, strongly 

 muricate, close-set and uneven, with irregular and close-set unim- 

 pressed series, in which the punctures are onlv slightly larger; 

 abdomen finely, sparsely punctured, convex, the fourth segment 

 in the apparent female with a porrect median lobe. Length 6.6 

 mm.; width 3.8 mm. Lower California (Cape San Lucas). 



punctulata Lee. 



Form oblong-oval, convex, black throughout, the legs rufous; head 

 and pronotum densely opaque, the elytra feebly shining, alu- 

 taceous ; head not very coarsely but closely, moderately strongly 

 punctate, the epistoma moderately convex, densely sculptured, 

 the sides before the eyes feebly converging and broadly arcuate, 

 becoming parallel at the eyes, which are only moderately devel- 

 oped ; prothorax well developed, fully four-fifths wider than long, 

 widest at about the middle, moderately narrowed toward the 

 normally sinuate tip, the sides strongly and almost evenly arcuate, 

 the punctures fine, shallow, moderately close, becoming gradually 

 dense, muricate and moderately coarse toward the sides ; elytra 

 one-half longer than wide, scarcely more than three times as long 

 as the prothorax and but vex'y little wider, obtusely rounded at 

 tip, the sides feebly arcuate, finely but rather strongly, muricately 

 and confusedly punctate, with slightly uneven, feebly impressed 

 sei'ies of but slightly larger, close-set punctures, the second series 

 from the sides more strongly impressed behind the humeri. 

 Length 7.4 mm.; width 3.15 mm. California (San Diego). 



opacella n. sp. 



Form oblong, subparallel, moderately convex, rather strongly shining 

 throughout, castaneous, the under surface and legs rufous ; head 

 finely but deeply, muricately and rather closely punctate, the sides 

 before the eyes moderately converging and strongly arcuate, 

 the eyes rather prominent; prothorax widest at about the middle, 

 fully three-fourths wider than long, moderately narrowed and 

 sinuate at apex, the sides evenly and strongly arcuate, the 

 punctures fine and rather sparse with the surface shining, 

 rather rapidly larger, somewhat coarse, muricate and crowded 

 laterally ; elytra three-fifths longer than wide, not four times as 

 long as the prothorax and about a fifth wider, obtusely or sub- 

 circularly rounded at tip, parallel, with the sides almost straight 



