1949] 
Werner — Epicauta 
109 
A re-examination of material in this species shows 
that two species are present, virgulata being the Lower 
California species, extending to southwestern Arizona 
and hirsutipubescens (Mayd.) being found from western 
Texas to southeastern Arizona. 
The description of virgulata in my revision need not 
be greatly changed except for addition of characters by 
which it differs from hirsutipubescens. The shape of 
the hind trochanters serve to separate it in both sexes 
(Fig. 3). In the male the first antennal segment reaches 
B 
Fig. 3. A. Antenna of Epicauta virgulata (Lee.), male. B. Antenna 
of Epicauta hirsutipubescens Mayd., male. C. Metatrochanter of Epi- 
cauta virgulata , male. D. Metatrochanter of Epicauta hirsutipubescens, 
male. 
nearly to the hind margin of the head and is equal to the 
following four in length. It is deeply excavated ex- 
ternally near the apex. Second segment small, two- 
thirds as long as third, which is also broader. The sec- 
ond to sixth segments are dorso-ventrally flattened, the 
ventral surface of the second to fourth smooth and ap- 
parently forming a clasping organ, opposing the an- 
tennal excavation. Middle femora and trochanters de- 
nuded behind, flattened and slightly excavated, margined 
ventrally with a few long hairs and also dorsally on the 
trochanters. 
Specimens from Lower California have the body col- 
