Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.


A family of insects (order Blattaria) consisting of over 4000 species of cockroaches, largely tropic but worldwide in distribution, including a number of abundant pests of households, kitchens, and institutions or facilities, wherever food is present; noxious wherever found, yet not positively incriminated in natural transmission of pathogenic organisms to man. Common household pests include the German cockroach, Blattella germanica, the American cockroach, Periplaneta americana, and the oriental cockroach, Blatta orientalis.
[L. blatta, cockroach]
References in periodicals archive ?
Tenebrionidae 0 4 0 Cantharidae 0 0 0 Chrysomelidae 1 1 1 Cerambycidae 0 0 0 Dictyoptera Blattellidae 126 152 73 Blattellidae 2 0 0 0 Blattidae Periplaneta 3 4 0 americana Blaberidae 0 0 0 Diptera Culicidae Phoniomyia 2 3 0 sp.
An account of the Blattidae (Orthoptera) from Celebes, the Moluccas, and New Guinea.
Flora indigena de cucarachas (Dictyoptera: Blattidae y Blattellidae): Un analisis bacteriologico ultraes tructural.
Los insectos recolectados resultaron pertenecer al orden Orthoptera Suborden Blattaria, Familia Blattidae, especie Pycnoscelus surinamensis, FIG.