74 H. C. FALL. 



The series before me — mainly from the National Museum — 

 shows the following locality labels: Barnes, Kansas; Kansas; 

 Nebraska; Colorado. 



This species looks a little out of place in its present posi- 

 tion, and might better be associated with harperi, the impres- 

 sion of the basal margin of the prothorax being very similar 

 and nearly as strong as in that species, which, however, 

 differs in its rounded clypeus, wider head, coarser and closer 

 punctuation, somewhat different mentum and more strongly 

 ante-median upper tooth of the front tibia. 



73. D. lengii n sp. 



Moderately elongate, ovate, piceous or black above, a little paler 

 beneath, legs brown, upper surface, more especially the prothorax, 

 with a more or less evident ameous lustre. Mental declivity ill defined, 

 usually beginning at the anterior two-fifths, but sometimes shorter, 

 its hind margin either feebly prominent or not at all so; clypeal margin 

 rounded, feebly sinuate at middle; clypeal suture nearly straight, 

 finely impressed; punctuation of head rather dense. Prothorax a little 

 less than two-thirds wider than long, sides subparallel in basal half, 

 moderately convergent and nearly straight in front, surface scarcely 

 or faintly alutaceous, strongly shining, rather coarsely punctate, the 

 punctures close at sides, separated by their own diameters or more on 

 the disk. Elytra one-third longer than wide, one-third wider than 

 the prothorax and barely three times as long, geminate striae fairly 

 distinct, the three wider interspaces all confusedly punctate. Body 

 beneath moderately coarsely closely punctate at sides, more sparsely 

 and finely at middle. Upper tooth of front tibia median in position, 

 hind thighs slender, punctate at middle; ungual tooth nearly as long 

 as the superior portion of the claw, its tip about three times as far 

 from the base as from the apex of the claw. Length 9.3-10 mm.; 

 width 4.9-5.5 mm. 



The type is from Vowel's Mill, Louisiana, kindly given me 

 by my long-time friend, Mr. Leng, to whom the species is 

 gratefully dedicated. Other specimens are before me from 

 Texas (Liebeck and Dury), Longview, Texas and Atoka, 

 Indian Territory (Wickham). 



The subobsolete mental ridge, size, and piceous or blackish 

 color with aeneous surface lustre, are sufficiently characteristic 

 when taken together to identify the species. Very few of 

 our species show a perceptible metallic lustre, and of the re- 



