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Sexual difference in antennal sensilla size and per area density has rarely been studied in insects. The bruchine seed beetle Callosobruchus rhodesianus (Pic) (Coleoptera: Chrysomelidae: Bruchinae) is distributed over Central and Southern Africa and is a pest of stored legume seeds, especially cowpeas Vigna unguiculata. Here, we study the type, abundance,… (More)
The Japanese species of the genus Scaphoideus are revised. Eight species are recognized from Japan, including four new species: S. ryukyuensis sp. nov. from the Ryukyus, S. pristiophorus sp. nov. from Honshu and Kyushu, S. aurantius sp. nov. from the Ryukyus and S. brevistylus sp. nov. from Honshu, Kyushu and the Ryukyus.