BIOTIC ASSOCIATIONS OF COCKROACHES — ROTH & WILLIS 8l 



Periplaneta fuliginosa 



U.S.A. — Frequently encountered out of doors, but has been re- 

 ported common after dark about a hotel in Alabama and was captured 

 in a house in Louisiana ; it was also extremely abundant on the 

 wharves at night in Jacksonville, Florida (Hebard, 1917). As a 

 domiciliary pest it was, next to Blattella germanica, the most common 

 cockroach inside homes in southwest Georgia, where it was also the 

 most common cockroach in privies (Haines and Palmer, 1955)- This 

 species has become a very common domiciliary pest in Texas (Fads, 

 personal communication, 1955). It infested a greenhouse for five 

 years in Indiana (Gould and Deay, 1940). 



Periplaneta ignota 

 Australia. — It occurs in dwellings occasionally (Pope, 1953). 



Phaetalia pallida 



Colombia. — Three specimens from three dwellings (Princis, 1946). 

 Trinidad. — Male indoors; male and female at light (Princis and 

 Kevan, 1955). 



Plectoptera dorsalis 



Puerto Rico. — According to Gundlach (1887) it enters houses at 

 night attracted by light (Rehn and Hebard, 1927). 



Polyphaga aegyptiaca 



Iraq. — Common in houses (Weber, 1954). 

 Caucasus. — Winged male in kitchen (Burr, 1913). 

 U.S.S.R. — Listed as a sinanthrope (Bei-Bienko, 1950). 



Polyphaga saussurei 



South-central Asia. — One of the commonest domiciliary species 

 (Bei-Bienko, 1950). 



Pseudophoraspis nebulosa 

 East Indies. — This species is sometimes difficult indoors (Karny, 

 1925)- 



Pycnoscelus surinamensis 



A household pest in the East Indies (Karny, 1925) ; Philippine 

 Islands (Uichanco, 1953) ; Tanganyika (Smith, 1955) ; Trinidad, 

 eight records indoors (Princis and Kevan, 1955). It is also a green- 

 house pest (Hebard, 1917; Zappe, 1918; Doucette and Smith, 1926; 



