狭翅蟌属 Aciagrion

目 (Order):蜻蜓目 Odonata

科 (Family):蟌科 Coenagrionidae

腹部细长;翅狭长而透明,弓脉位于第2条结前横脉以外,结后横脉10条或更多,四边室的前边大约为后边长度的1/2或更短;雄性上肛附器较长,下肛附器退化。

Abdomen slender and long. Wings narrow and hyaline, arculus beginning after the second antenodal, postnodals 10 or even more , the upper side of the quadrangle about half the length of the lower or even shorter . Male superior appendages moderately long but the inferiors reduced .

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