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Biogeography and Phylogeny of Wood-feeding Cockroaches in the Genus Cryptocercus

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Author(s): Kiyoto Maekawa | Christine A. Nalepa

Journal: Insects
ISSN 2075-4450

Volume: 2;
Issue: 3;
Start page: 354;
Date: 2011;
Original page

Keywords: woodroaches | molecular phylogeny | molecular clock | chromosome number

ABSTRACT
Subsocial, xylophagous cockroaches of the genus Cryptocercus exhibit a disjunct distribution, with representatives in mature montane forests of North America, China, Korea and the Russian Far East. All described species are wingless and dependent on rotting wood for food and shelter at all stages of their life cycle; consequently, their distribution is tied to that of forests and strongly influenced by palaeogeographical events. Asian and American lineages form distinct monophyletic groups, comprised of populations with complex geographic substructuring. We review the phylogeny and distribution of Cryptocercus, and discuss splitting events inferred from molecular data.
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