Folsomia urumana sp. nov. is described as a new species. The species resembles
Folsomia fimetaria (Linnaeus, 1758) with white body, without eyes and 4+4 stout setae on anterior manubrium, but it is clearly different in chaetotaxy from other congeneric species.
Axelsonia yinii Huang and Liang, 1992 and
Archisotoma megalops (Bagnall, 1939) are reported as new records from Japan. Additional morphological characters, especially in chaetotaxy, of
Folsomia bidentata Lee, 1973,
Isotomodes fiscus Christiansen and Bellinger, 1980 and
Ballistura yasakaensis Tanaka and Niijima, 2007 are newly noted.
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