AMERICAN COLEOPTERA. 61 



52. D. moerens Lee. 



Oblong, very little wider behind, dark brown or blackish, elytra 

 finely, prothorax more minutely alutaceous, lustre rather dull. Men- 

 turn declivous from the anterior third or two-fifths, declivity margined, 

 labrum more deeply emarginate than usual. Front and clypeus 

 nearly flat and in the same plane, the latter very narrowiy reflexed, 

 the margin feebly sinuate at middle, sides rounded; punctuation of 

 head very dense, clypeal suture obsolete at middle. Prothorax nearly 

 three-fourths wider than long, widest near the middle, sides slightly 

 convergent posteriorly, more strongly so in front; punctuation rather 

 fine, dense along the anterior margin, sparser along the middle, where 

 the punctures are separated by from one to two times their own 

 diameters, a little closer laterally. Elytra two and one-half times as 

 long as the prothorax, very slightly wider behind, costas distinct; first 

 intercostal space with confused punctuation, second and third variable 

 but usually with the punctuation irregular, at least basally. Pygidium 

 very coarsely rugosely punctate. Metasternum strongly moderately 

 closely punctate at sides, sparsely and finely at middle; abdomen 

 more coarsely so laterally, nearly smooth at middle. Upper tooth of 

 front tibia just perceptibly nearer the apex than the base. Ungual 

 tooth post-median, its tip two-thirds as far from the apex as from 

 the base of the claw. Length 9.5-11 mm.; width 5-5.7 mm. 



The following localities are represented: Tucson, Florence 

 and Phoenix, Arizona; St. George, Utah; Los Angeles County 

 and Palm Springs, California. 



The type was described from Vallecitas, in the southeastern 

 desert region of California. 



The labrum is more deeply emarginate than in any other 

 of the non-hairy species except peninsularis , knausii and 

 fissilabris, but is distinctly less deeply impressed than in the 

 two last named species. 



53. D. punctipennis Lee. 



Oblong oval, scarcely wider posteriorly, black or brown, moderately 

 shining, upper surface coarsely densely punctate throughout, elytra 

 finely alutaceous. Mentum declivous from about the anterior third, 

 declivity margined. Clypeal margin sinuato-rotundate; clypeal suture 

 fine, distinct, head densely punctate, front with a vague median im- 

 pression. Prothorax three-fifths wider than long, sides broadly arc- 

 uate, subparallel in basal half, punctuation coarse and dense. Elytra 

 a little less than two and two-thirds times as long as the prothorax; 

 punctuation coarse and close, irregular on all the intercostal spaces, 

 but less markedly so in the outer two; costag evident. Body beneath 



TRANS. AM. ENT. SOC, XXXV. MARCH, 1909. 



