Semidalis albata (English spelling)

Japanese: Semidalis albata(英語表記)Semidalisalbata
Semidalis albata (English spelling)

…They are widely distributed throughout the world except the polar regions, with 240 known species, and five recorded in Japan. The adult emergence period varies by species, but is usually found from April to October on pines and evergreen oaks. The white-spotted mayfly Semidalis albata (illustration) appears in large numbers on the Japanese laurel hedges in early summer. The eggs are oblong, about 0.5 mm in diameter, and have a net-like pattern on the surface. They are laid one or two or three eggs at a time on the edges or undersides of leaves. …

*Some of the terminology that mentions "Semidalis albata" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…極地を除く世界中に広く分布し,240種が知られ,日本からは5種が記録されている。成虫の発生期は種により異なるが4~10月におよび,おもに松柏類,常緑カシ類に見いだされ,シロコナカゲロウSemidalis albata(イラスト)は初夏に生垣のカイヅカイブキに多数発生する。卵は長楕円形で長径約0.5mm,表面には網目状の模様があり,葉の縁や裏面に1卵または2,3卵ずつ産みつける。…

※「Semidalis albata」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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