BIOTIC ASSOCIATIONS OF COCKROACHES — ROTH & WILLIS 67 



Plectoptera rhabdota 

 Puerto Rico. — In mixed vegetation; on grapefruit tree and guava 

 {Psidimn guajava) ; on bushes and shrubs (Rehn and Hebard, 1927). 

 On coffee trees: on Spondias; on sugarcane; in caterpillar nests of 

 Tetralopha scabridella on Inga vera; in old cotton bolls ; on grapefruit 

 (Wolcott, 1936). See also Wolcott's (1950) comments under Plec- 

 toptera dorsalis. 



Plectoptera vermiculata 

 Cuba. — On pine in palmetto region (Rehn and Hebard, 1927). 



Polyphaga aegyptiaca 



Algeria. — Nymphal females under decaying leaves at the end of 

 November (Lucas, 1849). 



Transcaucasia. — In burrows in argillaceous cliffs along ravines. 

 Females often covered by attached clay particles, an indication, ac- 

 cording to Bei-Bienko, that this species is ecologically connected to 

 compact clay soils or at least does not avoid them (Bei-Bienko, 1950). 



See also the section on desert habitats (p. 29). 



Polyphaga saussurei 



South-central Asia. — Occupies compact clay soils; distributed in 

 drier regions than P. aegyptiaca; frequently found near dwellings, 

 in yards, stables, and houses (Bei-Bienko, 1950). 



Polyzosteria limbata 



Australia. — Common, usually "resting among the foliage or sun- 

 ning itself on a fence or stumps, seldom or never hiding under bark or 

 logs like most of the species" (Froggatt, 1906). 



Poroblatta spp. 



Tropical America. — "The species of Poroblatta apparently live as 

 borers in stumps and logs in a manner similar to those of Cryptoccrcus 

 Scudder in the United States" (Gurney, 1937). 



Pseudomops septentrionalis 



Texas. — In dead-brush pile ; not scarce in heavy weeds, sunflowers, 

 etc., in openings of river-plain jungle scrub (Hebard, 1917). It lives 

 largely in herbage (Hebard, 1943a). 



Pycnoscelus surinamensis 



Florida. — Under stones and rubbish ; very abundant under coquina 

 boulders in woods at Key West (Rehn and Hebard, 1905). "This 



