70 H. C. FALL. 



prompted the name given by Dr. Horn is by no means peculiar 

 to this species, though it seems to be better developed here 

 than elsewhere. As a rule, when present, these finer punc- 

 tures are much more evident on the prothorax than on the 

 elytra, but in the present species are equally so in both. 



66. I>. peninsularis n. sp. 



Oblong oval, rather robust, dark brown, prothorax blackish, lustre 

 somewhat dull, upper surface finely alutaceous. Mental declivity- 

 short, distinctly margined and quite evidently concave from side to 

 side. Labrum deeply emarginate; clypeal margin distinctly sinuate 

 at middle, the sides rounded; clypeal suture distinctly impressed, 

 broadly arcuate at middle, front bi-impressed in a line between the 

 upper portions of the eyes; head throughout densely punctate. Pro- 

 thorax barely three-fifths wider than long, widest at the basal angles, 

 sides deeply sinuate and slightly convergent or subparallel to about 

 the anterior third, thence rounded to apex; front angles obtuse, hind 

 angles right or even slightly acute; punctuation moderately coarse and 

 rather dense, the punctures separated as a rule, by less than their 

 own diameters, but as usual are a little sparser along the median line. 

 Elytra one-fifth longer than wide, two-fifths wider and two and two- 

 thirds times as long as the prothorax, slightly widened behind, coarsely 

 quite densely punctate, the costse well marked, the intercostae all wide 

 and confusedly punctured. Body beneath punctate as usual. Upper 

 tooth of front tibia submedian; hind thighs punctate at middle; ungual 

 tooth subapical, its tip about twice as distant from the base as from 

 the apex of the claw. Length 12 mm.; width 6? mm. 



Santa Rosa, and San Felipe, Lower California (Beyer). 



This species is evidently rather nearly allied to mcerens. 

 The form of the labrum is the same in both, but the prothorax 

 in the present species is of somewhat different shape and 

 much more densely punctate, and the ungual tooth is more 

 apical. 



67. D. anxius Lee. 



Oblong-oval, brown or piceous, coarsely densely punctate and min- 

 utely alutaceous, only moderately shining. Mental declivity beginning 

 at about the anterior third, distinctly margined behind. Clypeus 

 broadly arcuate, sinuate at middle. Front and clypeus very densely 

 punctate, the former broadly feebly bi-impressed, clypeal suture finely 

 impressed, nearly straight. Prothorax about three-fifths wider than 

 long, sides broadly arcuate, subparallel posteriorly,. hind angles slightly 

 obtuse, surface very densely subrugosely punctate, a shallow impressed 

 nearly entire median line. Elytra about two and two-thirds times as 



