Studies of Distribution and Habitat of Cockroaches in Southwestern Georgia, 1952–53

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  • Communicable Disease Center, Public Health Service, Atlanta, Georgia


A study of distribution and habitat of the common cockroaches from August, 1952, through September, 1953, showed that B. germanica outnumbered all other common species (86.6 per cent) inside homes and that P. americana was the most prevalent (99 per cent) in sewer manholes. The distribution of P. americana suggests a direct migration from more favorable to less favorable environments and suggests that population pressure of the species in sewerage systems may be a factor inducing movement to homes. Blattella germanica was less abundant and P. americana and P. brunnea more abundant during the late spring and summer months.

Author Notes

Present address—Entomology Branch, Camp Detrick, Frederick, Maryland.

Present address—Florida State Board of Health, Miami, Florida.