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books.google.com からのSupplementary Note on Nomada issikii Yasumatsu (Hymenoptera, Apidae) in the roberjeotiana Species Group of the Genus Nomada
... genus Nomada ( Hymenoptera : Apoidea ) . Univ . Kansas Sci . Bull . , 55 ... Apidae ) . Esakia , ( 42 ) : 47–54 . MATSUMURA , S. , 1912. Thousand Insects of Japan . Supplement . IV . Keiseisha ... roberjeotiana Species Group 317.