...Several species are known. Texas leaf-cutter ants, Atta texana , are distributed in northeastern Mexico, Texas, and Louisiana. Workers are polymorphic, measuring 1.5-12 mm in length, with one pair of spines on the back of the head and three pairs on the back of the thorax, and dark reddish brown in color. Nests are built underground, and thriving colonies are extremely large, up to 20 m in diameter and 6 m deep, with numerous fungus chambers connected by passageways, and the number of worker ants can reach hundreds of thousands. ... *Some of the terminology that mentions "Atta texana" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…数十種類が知られている。テキサスハキリアリAtta texanaはメキシコ北東部,テキサス州,ルイジアナ州に分布し,働きアリは多型で体長1.5~12mm,後頭部に1対,胸部背面に3対の刺状突起があり,全体は暗赤褐色。巣は地中につくられ,繁栄したコロニーのものはきわめて大規模で,径20m,深さ6mにおよび,多数の菌室が通路で連結していて働きアリの数も数十万に達する。… ※「Atta texana」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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