Harvestman - Harvestman (English spelling)

Japanese: ザトウムシ(座頭虫) - ザトウムシ（英語表記）harvestman

A general term for arthropods belonging to the order Opilionida of the class Arachnida. The Japanese name comes from the fact that the way they walk resembles a blind person walking while feeling around with a cane. They are also called Mekuragumo. They are distributed widely around the world, but are more common in tropical and subtropical regions. They wander under fallen leaves, fallen trees, and pebbles, among grass, and on trees. Body length is 1 to 25 mm. The anterior and posterior parts of the body are integrated, with no waist between them, and the posterior part has a jointed structure. They usually have a pair of simple eyes on the eye caruncle in front of the anterior part. The walking legs vary depending on the species, from those that are as long as the body is to them to those that are extremely long, but those that live on tree trunks and leaves and are easily noticeable often have long walking legs that are worthy of the English name daddy long-legs.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

蛛形（ちゆけい）綱ザトウムシ目Opilionidaに属す節足動物の総称。和名は歩行状態が盲人がつえで探りながら歩くのに似ていることに由来する。メクラグモとも呼ばれる。世界中に広く分布するが，熱帯･亜熱帯地方に多い。落葉，倒木，小石の下や，草間，樹上を徘徊する。体長1～25mm。体は前体部と後体部が一体となり，間にくびれはなく，後体部は関節構造をなす。ふつう，前体部前方の眼丘上に1対の単眼をもつ。歩脚は体に見合った長さのものから極端に長いものまで種によってさまざまであるが，樹幹や葉の上におり，よく目につくものは，英名のdaddy long‐legsにふさわしい歩脚の長いものが多い。

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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