Journal of the Acarological Society of Japan
Online ISSN : 1880-2273
Print ISSN : 0918-1067
ISSN-L : 0918-1067
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Volume 11, Issue 2
Displaying 1-5 of 5 articles from this issue
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Original Papers
  • Phoretic Mite Fauna on the Large Carpenter Bee Xylocopa appendiculata circumvolans (Hymenoptera: Apidae) with Descriptions of its Acarinaria on Both Sexes
    Kimiko OKABE, Shun'ichi MAKINO
    2002 Volume 11 Issue 2 Pages 73-84
    Published: 2002
    Released on J-STAGE: August 24, 2005
    DOIhttps://doi.org/10.2300/acari.11.73
    JOURNAL FREE ACCESS
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    Both females and males of the Japanese large carpenter bee Xylocopa appendiculata circumvolans Smith had a pair of mesosomal acarinaria behind the wing bases as well as the metasomal one in the first tergum. The opening to the mesosomal acarinarium was larger in male bees than in females. The metasomal acarinarium was a narrow and shallow groove rather than the invaginated chamber reported in X. flavorufa or X. latipes. Three species of mite deutonymphs were collected from X. a. circumvolans: Sennertia japonica, S. alfkeni, and Horstia helenae, of which the first two species greatly outnumbered the last. All three species were supposed to be scavengers feeding on various kinds of debris in nests of the host and cleptoparasites eating stored pollen. Sennertia japonica, which was smaller than S. alfkeni, mainly occurred in the acarinaria and wing bases, while S. alfkeni mainly in dorsolateral hair, probably because S. alfkeni was too large to enter the acarinaria. We discussed the significance of acarinarium in the genus Xylocopa from the viewpoint of mite-bee interactions.
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  • A New Species of Tarsonemus (Acari: Tarsonemidae), Preying on Eggs of Schizotetranychus longus (Acari: Tetranychidae)
    Jianzhen LIN, Hiroshi NAKAO, Yutaka SAITO
    2002 Volume 11 Issue 2 Pages 85-89
    Published: 2002
    Released on J-STAGE: August 24, 2005
    DOIhttps://doi.org/10.2300/acari.11.85
    JOURNAL FREE ACCESS
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    A new species of the genus Tarsonemus predacious on eggs of Schizotetranychus longus Saito is described in Japan under the name of Tarsonemus praedatorius.
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  • A New Species of the Genus Mahunkania (Acari: Heterostigmata: Pygmephoridae) from Japan
    Kazuyoshi KUROSA
    2002 Volume 11 Issue 2 Pages 91-99
    Published: 2002
    Released on J-STAGE: August 24, 2005
    DOIhttps://doi.org/10.2300/acari.11.91
    JOURNAL FREE ACCESS
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    Mahunkania japonica, a new species of Pygmephoridae is described from Japan on the basis of a female specimen collected from a decayed log in which the termite, Reticulitermes spelatus kyushuensis (Isoptera: Rhinotermitidae) colonized. It is distinguishable from four other congeners mainly by that two spinelike setae on femur I are very different in size, and that solenidion ω2 on tibiotarsus I is located well apart from apical ω1. Moreover, the species is peculiar in possessing a stout bifurcate process near the base of claw on medial margin of tibiotarsus I. Such an unusual process has not been known in any other species of Pygmephoridae, but is considered extremely modified unguinal setae u'-u'' and homologous with the "counterpart" of claw in Pygmephorus and certain other genera. The remaining species of Mahunkania may also possess the same or similar structure.
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