28 
Psyche 
[February 
PHORTICOLEA BOLIVIA, A NEW MYRMECOPHILOUS 
COCKROACH FROM SOUTH AMERICA. 
(Results Mulford Biological Exploration. — Entomology). 
By a. N. Caudell. 
Bureau of Entomology, U. S. Department of Agriculture, 
Washington, D. C. 
Among the insects collected in Bolivia by Dr. Wm. M. 
Mann, entomologist with the Mulford Expedition to South 
America in 1921-1922, was an apparently undescribed myrme- 
cophilous cockroach bBlonging to the genus Phorticolea of Bolivar. 
Although only males were collected there seems to be no doubt 
that this generic assignment is correct, as the specimens agree 
in every essential with the characters given for Phorticolea. 
The size and locality of the new species here described indicate 
specific distinctness from testacea, the type and only described 
species of Phorticolea, though the very brief diagnosis of the 
latter makes comparative characterization impossible. 
Phorticolea boliviae sp. nov. 
Description. — Adult male, the opposite sex unknown. 
General color reddish brown, laterally somewhat darker. Head 
yellowish with black eyes; vertex evenly convex, not quite con- 
cealed beneath the pronotal disk; eyes lateral, subreniform, 
strongly fasceted and almost or quite three times as long ver- 
tically as broad; interocular space fully twice as great as the 
vertical length of one of the eyes; labial palpus with the terminal 
segment large, thick, fusiform, about two and one half times as 
long as the median width and a little more than twice as long as 
the proceeding segment, which is triangular in shape. Antenna 
approximately as long as the insect itself and consisting of at least 
thirty segments^; first segment noticeably longer than broad 
and flattened basally; second and third segments subquadrate, 
each being about, or a little more than half as long and scarcely 
lOne specimen only cf the three examined has both antennae apparently complete and 
here consists of thirty segments. The other two specimens have the antennae more or less 
mutilated. 
