The Nearctic species of Brychius Thomson, 1859 (Coleoptera: Haliplidae) were revised by examining adult and larval specimens. Brychius albertanus Carr 1928 is a junior subjective synonym of Brychius ...
(1) Records of aquatic Coleoptera were assembled for 384 sites in north-east England and the sites were classified using two-way indicator species analysis (TWINSPAN) and ordinated using detrended ...
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New World Genus Perilypus is redefined, and its natural history summarized. Species occur in at least three macrohabitats defined as oak, liana, and herbaceous assemblages. Beetles with rectangular ...