Hornet - Hornet

Japanese: オナガバチ - おながばち
Hornet - Hornet

A general term for a group of parasitic wasps in the family Ichneumonidae of the order Hymenoptera of the class Insecta. They are large, measuring 20-40 mm in length, and are so named because they have an ovipositor that is longer than their body. They are beautiful wasps with a reddish-brown or blackish-brown body and numerous yellow spots. In Japan, the following species are known: Megarhyssa japonica (also known as Mon Onagabachi), M. groliosa (Ooa Meiro Onagabachi), Rhyssa jozana (Jozan Onagabachi), and R. persuasoria (Shirofu Onagabachi). These wasps are beneficial natural enemies that parasitize the larvae of wood wasps, which are wood pests, and are beneficial insects that make a hidden contribution to forest production in Japan. Female white-winged wasps thrust their long ovipositors through the surface of the trunk and lay eggs on the larvae of the Japanese hornet Urocerus japonicus hiding in tunnels within the wood.

[Yoshihiro Hirashima]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

昆虫綱膜翅(まくし)目ヒメバチ科の一群の寄生バチの総称。体長20~40ミリメートルの大形で、体よりも長い産卵管をもつのでこの名がある。体は赤褐色ないし黒褐色で、多数の黄色の斑紋(はんもん)がある美しいハチである。日本ではオオホシオナガバチ(別名モンオナガバチ)Megarhyssa japonica、オオアメイロオナガバチM. groliosa、ジョウザンオナガバチRhyssa jozana、シロフオナガバチR. persuasoriaなどが知られている。これらのオナガバチは木材害虫のキバチ類の幼虫に寄生する有益な天敵で、日本の林木生産に隠れた貢献をしている益虫である。シロフオナガバチの雌バチは、幹の表面から長い産卵管を突き立て、材中の坑道に潜むニホンキバチUrocerus japonicusの幼虫に産卵する。

[平嶋義宏]

出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例

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