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The systematics and phylogeny of the Blattaria are reviewed. Subjects covered are: taxonomic and diagnostic characters, fossils, classification, families, genera, estimates of number of taxa, non-classical taxonomy, identification, scientific and vernacular names; a glossary, and brief sketches of some Masters of cockroach taxonomy are included. Previously unreported, Cahita gradlis Rocha is a junior synonym of Symploce pollens (Stephens).
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Louis M. Roth (2003) studied this question.
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