Parcoblatta fulvescens
Texas.—In the nests of wood rats, Neotoma sp. (Hebard, 1917).
Polyphaga aegyptiaca
Turkmen S.S.R.—Nymphs and adult females were often found in burrows of the sand mouse, Rhombomys opimus (Vlasov, 1933).
Polyphaga indica
Turkmen S.S.R.—This species prefers sandy soils where it can be found in burrows of Spermophilopsis leptodactylus and Pallasiomys meridionalis pennicilliger Heptner (Vlasov and Miram, 1937).
Polyphaga saussurei
Tadzhikistan.—Found in burrows of turtles and rodents (Zmeev, 1936).
Turkmen S.S.R.—Nymphs and adult females are common in burrows of Rhombomys opimus and in burrows of Testudo horsfieldi. Its principal habitat is rodent burrows in loess dust, where it is not infrequently found in the food stores of the host (Vlasov and Miram, 1937).