1940] 
New North American Diplotaxis 
141 
rows of setigerous punctures ; hind coxae punctate in outer 
half ; pronotum without impressed line along anterior bor- 
der, anterior angles moderately prominent; tooth of tarsal 
claws ante-median in position. 
Head with large asperate punctures above separated by 
about one-fourth their own widths, more densely placed 
along clypeal suture, front evenly rounded ; clypeus densely 
punctate, punctures coalescent at base, clypeal suture entire, 
nearly straight medially, margins moderately reflexed, an- 
terior and side margins shallowly sinuate medially, anterior 
angles evenly rounded, canthus angulate subapically. Pro- 
notum with side margins subangulate medially, anterior 
angles prominent ; anterior margin not impressed, narrower 
than posterior margin ; surface minutely alutaceous, sparsely 
punctate, punctures separated by about twice their own 
widths, median longitudinal impression faint. Elytra widest 
at apical third; humeral umbones prominent; surface 
strongly alutaceous, costae distinct, intercostal spaces irregu- 
larly punctate, punctures separated by two to three times 
their own widths, costae with single row of median punctures. 
Undersurface with very short, sparse, golden pile ; anterior 
and middle legs with tarsi distinctly longer than tibiae, ante- 
rior tibiae tridentate, basal tooth slightly in front of middle, 
tarsal claws with inner truncate tooth slightly ante-median 
in position. Length 8 mm., width 4.3 mm. 
Holotype in the writer’s collection, taken at Rancho La 
Golondrina, Rio Sabinas, Muzquiz, Coahuila, Mexico, June 
28, 1938 by Rollin H. Baker. One paratopotype in the col- 
lection of 0. L. Cartwright. 
This species is most closely allied to Diplotaxis hakeri Ca- 
zier but can be separated by its smaller size, reddish-brown 
color, by the large asperate punctures on the front of the 
head and by the longer anterior tarsi. From D. hay denii 
Lee. it can be separated by its unimpressed anterior pronotal 
margin, by the ante-median tooth on the tarsal claws and by 
the asperate punctures on the head. 
Diplotaxis completa Cazier, new species 
Rather large, reddish-brown ; upper surface glabrous ; lab- 
rum broadly, arcuately emarginate; mentum strongly de- 
clivous at anterior third, margin without raised line, setae 
