Journal of the Acarological Society of Japan
Online ISSN : 1880-2273
Print ISSN : 0918-1067
ISSN-L : 0918-1067
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Volume 18, Issue 2
Displaying 1-5 of 5 articles from this issue
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Original Papers
  • A New Species of the Family Quadroppiidae and a New Subspecies of the Family Oppiidae (Acari, Oribatida) from Iran
    Mohammad Ali AKRAMI, Luis S. SUBÍAS
    2009 Volume 18 Issue 2 Pages 65-71
    Published: November 25, 2009
    Released on J-STAGE: December 25, 2009
    DOIhttps://doi.org/10.2300/acari.18.65
    JOURNAL FREE ACCESS
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    A new species of oribatid mites of the family Quadroppiidae Balogh, 1983, Quadroppia (Coronoquadroppia) iranica n. sp., and a new subspecies of the family Oppiidae Sellnick, 1937, Oppiella (Oppiella) nova mazandaranica n. ssp. are described from Iran. The new species is recognized by a rectangular frontal appendage in the rostral region, in front of the transcostula, with distict borders; large cristae on notogastral anterior margin with inner border smaller than outer border. This species was collected from the soil under forest trees, especially Alnus sp. Also, the new subspecies is distinguishable by a pair of great muscular impressions in the interlamellar region. This subspecies was collected from the soil of rice field, Oryza sativa L.
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  • Development, Reproduction and Prey Consumption of the Thrips Predator Gynaeseius liturivorus (Ehara) (Acari: Phytoseiidae)
    Masatoshi MOCHIZUKI
    2009 Volume 18 Issue 2 Pages 73-84
    Published: November 25, 2009
    Released on J-STAGE: December 25, 2009
    DOIhttps://doi.org/10.2300/acari.18.73
    JOURNAL FREE ACCESS
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    Gynaeseius liturivorus is an indigenous predatory mite that feeds on small arthropods. I investigated its development period on diets of Frankliniella occidentalis eggs and several life-history parameters on diets of Thrips palmi larvae. The developmental periods of females from egg to adult emergence ranged from 3.09 days at 27.5°C to 9.55 days at 15°C 95.7% to 100% of eggs hatched and 75% to 95% of hatched larvae developed to adults. The lower threshold temperature from egg to adult female was 8.8°C and the total effective temperatures of female adult development were 63.7 degree-days. Proportion of females was 0.759 among the 311 individuals tested. Females laid an average of 36.7 eggs at 20°C and 36.1 eggs at 25°C The intrinsic rates of natural increase (rm) were 0.205 at 20°C and 0.305 at 25°C G. liturivorus fed on the larvae of F. occidentalis, T. palmi and Scirtothrips dorsalis. Females consumed an average of 7.4-19.4 1st-stadium larvae of these thrips within the first 24 hrs and laid an average number of 1.6-6.8 eggs within 24-48 hrs. These data suggest that G. liturivorus is promising for biological control agents against thrips.
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  • The Scutacarid Mites of Japan. XIV. A New Species of Archidispus Phoretic on Stenolophine Carabid Beetles
    Kazuyoshi KUROSA
    2009 Volume 18 Issue 2 Pages 85-90
    Published: November 25, 2009
    Released on J-STAGE: December 25, 2009
    DOIhttps://doi.org/10.2300/acari.18.85
    JOURNAL FREE ACCESS
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    A new species of scutacarid mites, Archidispus acupalpi sp. nov., is described from Japan based on phoretic females found on the cervical membrane between head and prothorax of carabid beetles belonging to the subtribe Stenolophina of the tribe Harpalini. This new species is closely related to Archidispus yanoi Kurosa, 1984, another phoretic associate of stenolophine carabid beetles, but can easily be distinguished from the latter by the anterolateral expansion of alveolar thickening of opisthosomal seta c1, posteromesial linear extension of alveolar thickening of opisthosomal seta c2, shape and size of coxal seta 3b, and so forth.
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Short Communication
Biological Date
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