136 
Psyche 
[December 
NEW SPECIES OF NORTH AMERICAN DIPLOTAXIS 
(COLEOPTERA; SCARAB^IME) 
By Mont A. Cazier 
University of California, Berkeley 
The new species presented in this paper were found among 
material submitted for determination by various friends. 
The writer would like to express his sincere thanks and ap- 
preciation to 0. L. Cartwright and R. H. Baker for making 
available the Mexican material which is so closely allied 
to the Texas and Arizona fauna. Thanks are also due L. W. 
Saylor, W. F. Barr, R. G. Dahl, K. S. Hagen and J. C. von 
Bloeker for material loaned during the course of these 
studies. 
The descriptions are arranged so that the diagnostic por- 
tion includes the main characters used by Fall 1 (1909) in his 
key. This will enable the reader to refer directly to the most 
closely allied species. 
Diplotaxis arta Cazier, new species 
Small, black ; upper surface glabrous ; labrum broadly, ar- 
cuately emarginate; mentum horizontal, slightly convex be- 
hind, strongly declivous at anterior third, the declivity mar- 
gined by an acute arcuate raised line and a row of erect 
setse; pronotal angles not impressed, sides not bisinuate; 
front of head without convexity; metasternum normally 
long, elytra not connate ; ungual tooth short, nearly perpen- 
dicular to claw, median in position; clypeus rotundate, an- 
terior margin subtruncate medially. 
Head densely punctate, punctures coalescent or separated 
by about one-fourth their own widths, front on same plane 
as clypeus; clypeus punctate as in front, clypeal structure 
broadly interrupted medially, side margins shallowly sinuate 
1 Fall, H. C., 1909, Revision of the Species of Diplotaxis of the United 
States. Trans. American Entom. Soc. 35 :l-97. 
