體長約30~35mm，雄蟲複眼為褐色，合胸為褐色，側面有數條黑色的斑紋，腹部為紅褐色，腹部背面有不明顯的縱向黑線，兩翅膀大於一半面積為褐色，因此得名，翅痣為紅色，雌蟲複眼上半部為褐色下半部為綠色，合胸及腹部褐色較淡，腹背有2條縱向的黃色或黃褐色斑紋，翅膀呈透明狀，沒有大面積的黃褐色，翅痣為黃色。未熟雄蟲外觀近似雌蟲，但雄蟲翅膀前緣有粉紅色或橙黃色的分布。
分布於平地到低海拔山區的池塘、水田、沼澤等靜水水域，雌蟲產卵於水面的植物上。
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