30 H. C. FALL. 



wider; costae faint, punctuation confused in first intercostal space, 

 slightly so in second; each costa with a row of fine punctures. Propy- 

 gidium with apical marginal groove; pygidium rugosely but not deeply 

 or very coarsely punctate. Metasternum coarsely rather sparsely 

 punctured, abdomen coarsely punctate at sides, the punctures at mid- 

 dle much finer and arranged in somewhat irregular transverse series 

 along the middle of each segment. Front tibiae strongly acutely tri- 

 dentate, the upper tooth midway between base and apex, basal joint 

 of hind tarsus nearly or quite twice as long as wide. Ungual tooth 

 post-median but distinctly stouter than the apical portion of the 

 claw. Length 7.8-9 mm.; width 4.2-4.7 mm. 



New Mexico (Albuquerque and Deming) ; collected by Mr. 

 Wickham. This species is easily separated from muricata by 

 the tabular characters. According to Mr. Schaeffer, who has 

 kindly compared a specimen with the type of sparsesetosa, it 

 differs from the latter species in its distinct clypeal suture, 

 hairs of upper surface longer and more numerous, discal costae 

 less distinct ; punctuation of elytra, pygidium and abdomen 

 sparser and less coarse and deep; apical teeth of front tibia 

 less approximate and basal joint of hind tarsus a little longer. 



13. D. sparsesetosa Schf. 



" Robust, black. Head coarsely and densely punctate; genas dis- 

 tinct but continuous with the sides of the clypeus; clypeal suture 

 absent; clypeus more densely punctate than the head, apical margin 

 feebly reflexed and scarcely emarginate, angles broadly rounded. 

 Thorax twice as wide at base as long; apex slightly narrower than 

 base, sides arcuate; surface very coarsely punctate, punctures well 

 separated on the disk, dense at sides. Elytra not quite one and a 

 half times as long as wide at base, widening towards apex; costas 

 distinct and with a row of smaller punctures; punctures of intervals 

 between the geminate rows of punctures confused, coarse, but not 

 dense, each bearing a very short pale pair, which is more apparent 

 when the specimen is viewed laterally. Propygidium with a deep 

 transverse well-limited and coarsely punctate impression. Abdominal 

 spiracle rather prominent. Pygidium extremely coarsely and con- 

 fluently punctate. Labrum broadly arcuate emarginate. Anterior 

 tibiae tridentate, the upper tooth twice as far from the second as the 

 latter from the first. Claws cleft, the lower part broader and much 

 shorter than the upper and truncate at apex. Metasternum and 

 abdomen coarsely but not densely punctate, the latter still more 

 coarsely punctate at sides. Length 9 mm." 



Texas (Dietz). 



