...The abdomen is cylindrical with a tapered posterior segment, but the male's genital segments are large, with a pair of hooked projections at the end in a pincer shape, and the abdominal tip is always raised. This posture is the origin of the name "Scorpion fly," and when attacking, the way the round genital segments with pincers are extended forward over the head is reminiscent of a scorpion, hence the English name scorpion fly. It is usually black, about 20 mm long, with a long, thin head that extends downwards and has a small jaw at the tip, and all four wings are the same shape and are 13 to 20 mm long. *Some of the terminology that mentions "scorpion fly" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…腹は円筒状で後方の節は細くなっているが,雄の生殖節は大きく,その末端に1対のかぎ状突起がはさみ状についており,いつも腹端部を上へあげている。この姿勢がシリアゲムシと名付けられた由来であり,攻撃のとき,はさみのついたまるい生殖節を頭越しに前に出すようすはサソリを連想させるので英名ではscorpion flyと呼ばれる。ふつう黒色,体長20mmくらいで,頭は細長く下にのびて,その先端に小さなあごがつき,翅は4枚とも同形で13~20mmと長い。… ※「scorpion fly」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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