142 
Psyche 
[December 
absent at middle; hind femora with sparse irregular punc- 
tures between submarginal rows of setigerous punctures, 
hind coxae sparsely punctate in outer half ; pronotum without 
impressed line along anterior margin. 
Head with larger punctures above separated by about their 
own widths, more densely placed toward anterior depression, 
interspaces finely punctate, front above clypeal suture ab- 
ruptly elevated, surface sparsely punctate, front above slight- 
ly impressed; clypeus densely punctate, punctures close set 
or confluent, clypeal suture narrowly interrupted at middle, 
margins abruptly, prominently reflexed, side margins nearly 
straight, anterior margin shallowly sinuate medially, ante- 
rior angles evenly rounded, canthi evenly rounded. Pronotum 
widest slightly behind middle, evenly rounded basally, shal- 
lowly sinuate apically, anterior angles prominent; anterior 
margin narrower than basal margin ; surface sparsely punc- 
tate, large punctures separated by about twice their own 
widths, interspaces finely punctate. Elytra widest at middle ; 
humeral and apical umbones prominent ; surface with costse 
faint but indicated, intercostal spaces irregularly punctate, 
punctures separated by about three times their own widths, 
surface minutely alutaceous, costse with single, median row 
of small punctures. Undersurface sparsely clothed with 
short golden pile; anterior tibise tridentate, basal tooth 
slightly in front of middle, hind tarsi longer than tibise, tar- 
sal claws with inner tooth slightly ante-median, strongly 
truncate. Length 12.5 mm., width 6.1 mm. 
Holotype in the writer’s collection, taken at Serranias del 
Burro, Coahuila, Mexico, June 18, 1938 by Rollin H. Baker. 
This species is most closely allied to Diplotaxis dentella 
Fall and D. statura Cazier. It can be distinguished from D. 
dentella by its more widely reflexed clypeal margin, by its 
evenly rounded canthi, by its more sparsely punctate front, 
the smooth anterior depression on the front above the clypeal 
suture, by its less elevated elytral costse and longer tarsi. 
From D. statura it can be separated by its more widely re- 
flexed anterior clypeal margin, more prominent anterior pro- 
notal angles, by its wider and more densely punctate elytral 
intercostal areas, more weakly defined costse, by the presence 
of the alutaceous elytral sculpturing and the more ante- 
median tooth of the tarsal claws. 
