A colloquial name used to refer to insects in the superfamily Grylloidea in the order Orthoptera. The mole cricket is also a member of this group, but is often treated separately. The old name for the Japanese grasshopper was Koorogi. Crickets are a major group that makes up the order Orthoptera, along with katydids and grasshoppers, and are particularly closely related to katydids. Katydids have a vertically flattened body shape and are primarily adapted to arboreal life, but crickets, such as the emma cricket, have a dorsally flattened body shape and are adapted to terrestrial life. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
直翅目コオロギ上科Grylloideaに属する昆虫を呼ぶときに用いる通俗的な呼名。ケラもこの仲間だが,別に扱うことも多い。またツヅレサセコオロギの旧名をコオロギといった。 コオロギ類は,キリギリス類やバッタ類とともに直翅目を構成する主要な群で,とくにキリギリス類に類縁が近い。キリギリス類は体型が縦に平たく,主として樹上生活に適応しているが,コオロギ類は,エンマコオロギで代表されるように,体型が背腹に平たくなり,地表生活に適応している。
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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