...The eggs hatch in about 10 days, but the baby spiders do not leave the egg sac; instead, they overwinter as second-instar juveniles in the egg sac, and then leave and disperse the following year between late March and early April. Other members of the Acanthus genus that live in Japan are the roughly similarly sized A. opulenta and A. labyrinthica . The A. opulenta and A. labyrinthica are commonly found throughout Japan, but the A. labyrinthica is found mostly in areas at altitudes of 900m or higher, and is rarely seen on flat land. ... *Some of the terminology that refers to "Inazumaku Sagumo" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…卵は10日ほどで孵化(ふか)するが,子グモは卵囊から外に出ることはなく,2齢幼体のまま卵囊内で越冬し,翌年の3月下旬~4月上旬にかけて卵囊より出て分散する。クサグモ属の仲間は日本ではこのほかに,ほぼ同大のコクサグモA.opulentaとイナズマクサグモA.labyrinthicaが分布している。コクサグモは日本全土にふつうに生息しているが,イナズマクサグモは標高900m以上の地域に多く,平地ではほとんど見られない。… ※「イナズマクサグモ」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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