PSYCHE 
flDS. CO^ ZOOl 1 
l!88WY 
JUL ? 1954 
haryaro 
university 
Vol. 61 March, 1964 No. 1 
A NEW MYRMECOPHILOUS SCARABAEID BEETLE 
FROM THE PHILIPPINE ISLANDS 
WITH A REVIEW OF HAROLDIUS ' 
By Pe. F. S. Pereira C.M.F. 
Departamento de Zoologia, Sao Paulo, Brasil 
I have recently received from Dr. P. J. Darlin^on 
a short series of a scarabaeid beetle of the genus Haroldius 
from the Philippines. According to Dr. Darlington, who 
collected them, “All 6 specimens of the beetle were taken 
in one nest of ants under a stone in forest. Dr. W. L. Brown 
tells me that the ant is a Diacamma of the group vagans 
F. Smith of the tribe Ponerini.” The specimens are markedly 
different from Haroldius glohosus, the only species of the 
genus previously known from the Philippines. 
Dr. Darlington has kindly donated two of the specimens 
to the Departamento de Zoologia; one of these has been 
dissected and upon examination of the genitalia proved to 
be a female. No sexual dimorphism being apparent in un- 
dissected specimens, I have decided not to attempt a study 
of the male genitalia until more material is available. 
Haroldius philippinensis, n. sp. 
(Figs. 1-10) 
Length : 3. 5-4.0 mm. ; humeral width : 2. 5-3.0 mm. 
Shape oval, broadest at middle of elytra; color black 
with brown overtones on anterior margin of clypeus, sides 
of elytra, legs, and under parts of body. 
^Published with a grant from the Museum of Comparative Zoology at 
Harvard College. 
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