1953 j 
Werner — North American Epicauta 
111 
The species is discussed here because certain specimens 
from southern Arizona appear to be assignable to it. These 
specimens from Arizona do not agree completely with a 
series from Guadalajara, differing mainly in the color of 
the el 3 "tra. The species is redescribed on the basis of a male 
specimen from Guadalajara; following the redescription a 
comparison is made with the Arizona specimens. 
Black, the elytra rufo-testaceous, but with short black 
pubescence that darkens the color. Length 22 mm.; width 
across base of elytra 6.5 mm. Head subquadrate, as broad 
as long to apex of clypeus ; surface densely punctured except 
along a narrow midline, opaque because of deep microre- 
ticulation. Antennal calluses not evident, being marked 
only by the slightly sparser, irregular punctures. Pubes- 
cence moderately dense but short, black, decumbent except 
along the lateral margins, where it is erect and longer. Eyes 
moderately narrow, 0.45 as broad as long, not very promin- 
ent., Antennae slender, 2.7 as long as an anterior tibia, 12 
mui. long. Segment I moderately slender, reaching 2/3 
across the eye, almost parallel-sided; II short; III and fol- 
lowing slender, slightly flattened, all but XI slightly wider 
at apex than at base. Proportions of segments (to total 
length of 1000 units) : 108/42, 51/29, 128/33, 101/37, 
93/37, 93/35, 93/33, 88/33, 79/30, 75/29, 93/27. Maxillary 
palpi of male slightly enlarged and flattened, glabrous be- 
neath; labial palpi just perceptibly enlarged, also glabrous 
beneath. 
Pronotum subquadrate, just perceptibly broader than 
long. Surface densely punctured, with microreticulation as 
on head, and with short, subdecumbent to erect pubescence. 
IMedian impressed line distinct on middle of disc; median 
area depressed toward base. Scutellum black. Elytra rufo- 
testaceous, more shallowly and sparsely punctured than the 
pronotum but equally opaque. Pubescence black, short, de- 
cumbent, moderately sparse but giving a darker tinge to 
the color of the elytra. Anterior tibial spurs slender, 
straight in both sexes. Male anterior tarsi with a dense flat 
pad, broadened particularly on the first segment, decreas- 
ing gradually in width to segment 4. The pad of segment 
1 of the male is 1.9 as long as in a female of comparable 
.size, and 1.7 as wide. In the female the pad is not as dense 
