Shuyler (1956) has observed extensions into relatively new structural habitats by _Blattella germanica_ in the north-central area of the United States. A few German cockroaches are now being encountered in living rooms, bedrooms, clothes closets, bedroom furniture, lobbies, entrance halls, checkrooms, nonfood storerooms, nonfood warehouses, and coin-vending machine repair shops. In these situations this species is behaving much like the brown-banded cockroach, _Supella supellectilium_. =Blattella schubotzi= _Cameroon._--Five specimens in a house (Princis, 1955). =Blattella vaga= _U.S.A._--Although this is mostly an outdoor species, during dry seasons it may temporarily enter houses in great numbers, occasionally breeding indoors in Arizona (Flock, 1941a). Two adults were collected indoors in Texas (Riherd, 1953). =Chromatonotus notatus= _Trinidad._--A male was found indoors (Princis and Kevan, 1955). =Cutilia soror= _Hawaii._--Almost as common in houses as _Neostylopyga rhombifolia_ (Hebard, 1922). =Ectobius duskei= _U.S.S.R._--Frequently occurs in living apartments in farming localities as an accidental inhabitant (Bei-Bienko, 1950). =Ectobius pallidus= _Massachusetts._--A summertime pest in houses along coast (Gurney, 1953; E. R. Willis, personal observation). Generally an outdoor species. =Epilampra abdomen-nigrum= _Trinidad._--Male, indoors (Princis and Kevan, 1955). An outdoor species generally. =Ergaula capensis= _Cameroon._--A male taken in a house (Princis, 1955). =Eublaberus posticus= _Trinidad._--Indoors, feeding on bat feces (Princis and Kevan, 1955). =Eurycotis floridana= _Florida._--Occasionally found in homes (Creighton, 1954; Roth and Willis, 1954a). =Euthyrrhapha pacifica= _Hawaii._--Found outdoors and indoors where it breeds in neglected cupboards and in rubbish (Fullaway and Krauss, 1945). =Holocompsa azteca= _Mexico._--Household pest (Ball et al., 1942). =Holocompsa cyanea= _Costa Rica._--One specimen in house (Rehn, 1906). =Holocompsa nitidula= Apparently domiciliary in American Tropics (Hebard, 1917). In houses under chests, etc., Cuba (Gundlach, 1890-1891); Puerto Rico (Gundlach, 1887). In folds of burlap bag, Florida (Rehn and Hebard, 1914). =Ischnoptera rufa occidentalis= _Panama._--Thrives about human habitations under litter, though not domiciliary (Hebard, 1920). =Ischnoptera rufa rufa= _Jamaica._--In hotel. "While hardly a domiciliary form it would seem to frequent environments where man has considerably disturbed natural conditions, as under debris, docks, under logs and stones in cultivated areas" (Rehn and Hebard, 1927). =Leucophaea maderae= _West Indies._--In habitations, warehouses, and other structures; "At times it is a very abundant and serious pest" (Rehn, 1945). In Puerto Rico it was also found in fruit stores, markets, and inns (Seín, 1923; Wolcott, 1950).