…Looking at the mouthparts, in the case of grasshoppers, the mandibles perform the chewing function, while the mandibles and lower lip are used to sense and take in food. This type of chewing mouthparts is the basic form of food intake in insects, but on the other hand, some species have developed absorptive mouthparts in which the mouthparts are modified to become tubular and are suitable for ingesting exposed liquids or liquids separated by barriers, such as animal body fluids and plant soft fluids. It is particularly noteworthy that almost all of the two successful groups, Hemiptera and Lepidoptera, and a considerable number of species in the other successful group, Diptera, have switched to this method. … *Some of the terminology that refers to "absorption mouthparts" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…口器についてみると,バッタの場合大あごがそしゃく機能を果たし,小あご,下唇は餌の触知や取込みに役だっている。このようなそしゃく口器は,昆虫類における食物摂取の基本的な型だが,一方で口器が変形して管状となり,露出した液体,または動物の体液,植物の柔液など障壁で隔てられた液体の摂取に適した吸収口器も,いくつかの類で出現した。ことに二つの成功群,半翅目と鱗翅目のほとんどすべて,およびもう一つの成功群,双翅目のかなりの類がこの方式に転じたことは注目すべきであろう。… ※「吸収口器」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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