_Texas._--Captured in molasses traps in moist woods of maple, oak, and pine with much undergrowth and a heavy layer of duff; in open, rather dry woodlot of Spanish oak and other trees; and in low wet woods of willow and oak along creek (Hebard, 1943a). =Parcoblatta zebra= _Indiana._--Beneath log in cypress swamp (Blatchley, 1920). _Louisiana and Mississippi._--In decay cavity in sweet gum; under sign on shortleaf pine (Hebard, 1917). =Parcoblatta= spp. _Alabama._--In the dry wall of a sweet-gum stump together with serropalpid and tenebrionid beetles (Snow, 1958). _Ohio._--Oöthecae under loose bark of fallen trees, where as many as 184 oöthecae were found within a few feet of each other; others found under boards and in piles of firewood (Edmunds, 1952). =Pelmatosilpha coriacea= _Puerto Rico._--Mona Island, under bark of dead trees and under guava leaves (Ramos, 1946). Under bark of _Sideroxylon foetidissimum_ (Wolcott, 1941). Common along the coast and in mountains. "Very much at home" under the loose bark of _Sideroxylon foetidissimum_ (Wolcott, 1950). =Pelmatosilpha kevani= _Trinidad._--Under debris in bush (Princis and Kevan, 1955). =Pelmatosilpha purpurascens= _Dominica._--In decaying logs in forest (Rehn and Hebard, 1927). =Periplaneta americana= _Bermuda._--Among and under decaying debris, just above high-tide line (Verrill, 1902). _Johnson Island._--Nocturnal, coming out at night in great numbers about _Tribulus_ blossoms. Under timbers on French Frigate Shoals (Bryan, 1926). _United States._--Alleyways and yards may be overrun during the summer; adults and hundreds of nymphs found in decaying maple trees along residential street (Gould and Deay, 1938, 1940). Around fumaroles where a railroad fill was burning internally (Davis, 1927). Common in palm trees along the gulf coast of Texas, where they often fly around street lights at night (Zimmern _in_ Gould and Deay, 1940). =Periplaneta australasiae= _Bermuda._--Very abundant under stones (Rehn, 1910). _Jamaica._--Under bark of dead tree and under bases of leaves of coconut palms (Rehn and Hebard, 1927). _Virgin Islands, St. Croix._--Common in sugarcane fields and in woodlands (Beatty, 1944). _Florida._--Juveniles under bark of dead logs of _Pinus caribaea_ (Hebard, 1915). Frequently found under signs on trees near borders of towns; under bases of dead petioles of cabbage palmetto (Hebard, 1917). Beneath logs, burlap bags, and other cover in old orange orchards (Blatchley, 1920). _Marquesas Islands._--Under coconut fronds and grass (Hebard, 1935). _Nihoa Island._--Nymphs only, on _Sida_, _Pritchardia_, bunch grass, and about camp (Bryan, 1926). =Periplaneta brunnea= _Georgia._--Under signs on oaks (Rehn and Hebard, 1916). _Florida._--Beneath bark of stump (Blatchley, 1920). =Periplaneta fuliginosa=