A REVIEW OF THE NORTH-AMERICAN SPECIES OF RHIZOPHAGUS HERBST AND A REVISION OF THE NEARCTIC MEMBERS OF THE SUBGENUS ANOMOPHAGUS REITTER (COLEOPTERA, RHIZOPHAGIDAE)

The Nearctic species of the subgenus Anomophagus Reitter of the genus Rhizophagus Herbst are revised. Four taxa are recognized: R. brunneus brunneus Horn 1879, R. brunneus fenyesi Mequignon 1913a,R. pseudobrunneus sp.nov., and R. galbus sp.nov. For the other Nearctic species of the genus, a diagnosis, a type material section, and distributional notes are provided. Two new taxa are described, R. minutus rotun-dicollis and R. pusillus. Seven specific names are treated as new junior synonyms, namely (with the valid name in parentheses): R. longiceps Casey 1916 and R. rectus Casey 1916 (= R. cylindricus LeConte 1866); R. minutus quadriguttatus Mequignon 1913b( = R. minutus minutus Mannerheim 1853); R. remotus luteus Mequignon 1913b (= R. remotus LeConte 1866); R. sculpturatus horni Mequignon 1913b ( = R. sculpturatus Mannerheim 1852); R. dimidiatus testaceus Mequignon 1913b and R. dimidiatus assimilis Mequignon 1913b (= R. dimidiatus Mannerheim 1843). The subgeneric name Syringobidia Casey 1916 (type species: R. cylindricus LeConte 1866) is treated as a new junior subjective synonym of Rhizophagus s.str. A key to all Nearctic species of Rhizophagus is provided with distribution maps of the species. © 1990, Entomological Society of Canada. All rights reserved.