Bittacus nipponicus (false crane fly)

Japanese: ガガンボモドキ(擬大蚊) - ガガンボモドキ（英語表記）Bittacus nipponicus

An insect of the family Mecoptera and family Acanthidae. It is so named because it resembles a crane fly with its long, slender body and legs, long wings, and the way it flies. Its head is long and beak-like with a small chewing opening at the tip, and it is very similar to a crane fly, but the abdomen of the male cannot bend dorsally and the claws at the end of the abdomen are degenerate. Each leg is longer than the body and has a single large claw at the end. It grasps objects by folding the claws. It is pale brown in color, has a forewing length of about 20 mm, and is found only in the Kanto region.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

シリアゲムシ目ガガンボモドキ科の昆虫。細長い体と脚，長い翅，飛ぶときのようすなどガガンボに似ているため，こう呼ばれる。頭はくちばし状に長くなり，その先端に小さな咀嚼口（そしやくこう）がつき，シリアゲムシによく似るが，雄の腹は背側に曲げられないし，腹端のはさみは退化している。どの脚も体より長く，先端に大きなつめが1個だけつく。つめをたたみこんで物をつかまえる。淡褐色で，前翅長20mmほどで，関東地方だけに分布する。

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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