A general term for insects in the Hemiptera family, Coccidae. Approximately 60 species are known from Japan. Many species do not form obvious body coverings, and the body skin hardens significantly when they mature, hence the name. However, some species, like waxworms, are covered with a thick layer of glue-like secretions, while others, like cottony scales, have almost no hard skin and form egg sacs with cotton-like secretions when they mature. The bodies vary in shape from nearly circular to elliptical, ranging from flat to spherical with a pronounced protuberance on the back. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
半翅目カタカイガラムシ科Coccidaeの昆虫の総称。日本から約60種が知られる。明らかな虫体被覆物をつくらず,成熟すると体皮が著しく硬化する種が多いのでこの名がある。しかし,なかにはロウムシ類のようにのり状の分泌物で厚く覆われるものや,ワタカイガラムシ類のようにほとんど硬皮せず,成熟すると綿状の分泌物で卵囊を形成する種もある。虫体はほぼ円形~楕円形で,扁平なものや背面が著しく隆起して球形となるものなど多様。
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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