DESERT RECORDS. Map 3.
Imperial Co.: 2 __, 3 mi NW Glamis,15-16 Sept. 1972 (M. Wasbauer
& A. Hardy; CDFA), ex black light trap.
Riverside Co.: Red Cloud Cyn., Chuckwalla Mts., ----------------
(RRS & GCSC; LACM). San Bernardino Co.: 1 _, Yucca Valley,
26 Sept. 1944 (P. H. Timberlake; LACM), on Eriogonum inflatum; 1
_, 10 mi E Twentynine Palms, 11 June 1966 (LACM), at fluorescent
black light; 1 _, Needles, 30 June 1968 (J. C. Lambert; LACM), at
DISCUSSION. No cerapachyine
ants have been previously recorded from California. These males
are apparently conspecific with males from Sabino Cyn., Santa Catalina
Mts., Arizona, tentatively identified as C. davisi M. Smith.
However, as noted by Brown (1975), the few samples from North America
are so limited and confusing that any attempt to sort out the species
is hopeless at this time. More material must be procured and the
males must be associated with workers.
Workers that may be conspecific with
the above males are available, though not from a desert locality.
These were collected in the Cleveland National Forest, about 3 mi
N Warner Springs, San Diego Co. 19 May 1974, by Rudi Berkelhamer
(LACM). They were taken from a column of Neivamyrmex californicus
in chaparral habitat.
Cerapachys colonies are small
(in Arizona and Texas, a few dozen individuals or less). Even in
tropical areas, most Cerapachys nests probably contain fewer
than 200 workers (Brown, 1975).
In tropical regions these ants nest
in the ground or in rotten wood. Sometimes the nest is constructed
under a rock. Nest entrances are inconspicuous, rarely with a crater.
A short passage from the entrance leads into several chambers 10-50
cm beneath the surface. It is not known whether cerapachyines
are nomadic or not. Brown (1975) opined that the nests "...look
impermanent, and the broods show a strong tendency to be synchronized,
like those of army ants and nomadic Ponerinae (Onychomyrmex,
Some tropical Cerapachys species
are known to be carnivorous and predaceous, often raiding other
ant colonies (such as those of Pheidole) to take brood and