Japanese Journal of Entomology (New Series)
Online ISSN : 2432-0269
Print ISSN : 1343-8794
Volume 17, Issue 4
Displaying 1-14 of 14 articles from this issue
  • Tooru Taniwaki, Kyohei Watanabe
    2014 Volume 17 Issue 4 Pages 131-134
    Published: October 05, 2014
    Released on J-STAGE: April 25, 2019
    JOURNAL FREE ACCESS

    The oviposition behavior of two parasitoid wasps of Fagineura crenativora (Tenthredinidae), Endasys sp. and Aptesis sp. A (Ichneumonidae, Cryptinae; Taniwaki & Watanabe, 2012), were studied in laboratory experiments at room temperature. Both species initially dug into the soil to search for cocoons of their host. On the detection of cocoons, they laid their eggs inside the cocoon; however, in Endasys sp., egg laying occurrs only if the host cocoon has not been previously parasitized by larvae or pupae of other parasitoids. The eggs of parasitoids are ca. 2 mm and ca. 1 mm long in Endasys sp. and Aptesis sp. A, respectively, and can be easily dropped from the body of host inside cocoons.

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  • Shin-ichi Kudo, Yasumasa Kuwahara, Zoltán Korsós, Yayoi Ichiki, Masas ...
    2014 Volume 17 Issue 4 Pages 135-137
    Published: October 05, 2014
    Released on J-STAGE: April 25, 2019
    JOURNAL FREE ACCESS

    We observed egg-brooding behavior in two Japanese millipedes, Eutrichodesmus elegans (Miyoshi, 1956) (Polydesmida: Haplodesmidae) and Cryptocorypha sp. (Pyrgodesmidae), under field conditions. In the former, females remained curling the body around the soil-made mound-like egg-chamber (containing eggs) constructed on dead leaves in the litter. In the latter, a female brooded an egg-mass under the bark of a decaying fallen log.

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