Malaya.—The walls of a cave were covered by dense groups of a species of "Blatta" (Annandale, 1900).
England.—"The chief insect pests of the mines are cockroaches, which often swarm in hot mines and those with pit pony stables...." (Hardy, 1941).
COCKROACHES FROM THE BURROWS OF VERTEBRATES
Arenivaga apacha
Arizona.—In the nests of wood rats, Neotoma sp. (Hebard, 1917).
Arenivaga bolliana
Texas.—In the nests of wood rats, Neotoma sp. (Hebard, 1917; 1943a).
Arenivaga erratica
Arizona.—The wingless females were commonly found in burrows of Dipodomys spectabilis spectabilis Merriam, the kangaroo rat. The winged males were never found in the burrows (Vorhies and Taylor, 1922). Found most commonly in wood-rat and ground-squirrel dens in the desert regions (Ball et al., 1942).