Ehara, S., 1956.
Notes on some tetranychid mites of Japan (with 37 txt-figures). Japanese Journal of Applied Zoology, 21: 139-147.

Abstract
A total of 78 Japanese species belonging to the family Tetranychidae (spider mites) are assigned to two subfamilies, five tribes, 16 genera, and 13 species groups (only in four genera). A guide to identification of the Japanese species is provided, and information is also given about the important literature references, host plants, and distribution of each species. Three new species, Eotetranychus rubricans, Oligonychus gotohi, and Tetranychus parakanzawai are described. Eotetranychus lewisi (McGregor), recently recorded from Japan, is redescribed.

    • Summary

  • Nomenclature
  • Identification
  • Host plants
  • Distribution
  • Other biological features

    • Nomenclatural data

  • Eotetranychus uchidai Ehara, 1956;
  • Panonychus ulmi (Koch, 1836);
  • Tetranychus ludeni Zacher, 1913.

    • Identification tools
    Species

  • Eotetranychus sexmaculatus (Riley, 1890) [description; illustration];
  • Tetranychus ludeni Zacher, 1913 [description; illustration].

    • Host plant data (7 results)

  • Eotetranychus sexmaculatus (Riley, 1890) [Rutaceae: Citrus sp.]; Eotetranychus uchidai Ehara, 1956 [Ulmaceae: Ulmus davidiana];
  • Tetranychus ludeni Zacher, 1913 [Cucurbitaceae: Cucumis melo; Cucumis sativus; Solanaceae: Solanum melongena]; Tetranychus urticae Koch, 1835 [Rosaceae: Fragaria x ananassa; Rutaceae: Citrus sp.].

    • Distribution data (4 results)

  • Eotetranychus sexmaculatus (Riley, 1890) [Palearctic: Japan]; Eotetranychus uchidai Ehara, 1956 [Palearctic: Japan];
  • Tetranychus ludeni Zacher, 1913 [Palearctic: Japan]; Tetranychus urticae Koch, 1835 [Palearctic: Japan].

    • Other biological features