<i>Lissonota evetriae</i> UCHIDA (Hym., Ichneumonidae), a Parasite of a Japanese Pine Shoot Moth, <i>Evetria cristata</i> WALSHINGHAM

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  • マツヅアカシンムシに寄生する<i>Lissonota evetriae</i> UCHIDA (Hym., Ichneumonidae)について
  • マツズアカシンムシ ニ キセイ スル Lissonota evetriae UCHIDA Hym. , Ichneumonidae ニ ツイテ

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Description

Lissonota evetriae UCHIDA was a solitary internal larval parasite and its life history in the Tokyo University Forest in Seto was;<br>where, L: Larva, P: Pupa, A: Adult.<br>The parasite remained as the 1st instar larva from May to August. The fully grown larva spun a cocoon immediately after it killed the host larva in October.<br>The population densities of both host and parasite per tree were counted in 1961 and 1962, and it was made clear that the greatest decrease of the parasite population within a generation took place in May to June when the parasite larva was in early stage of the 1st instar. The decrease was most probably due to the death of many host larvae, which inevitably caused the parasite larvae to die.

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