方帶幽蟌屬束翅亞目（稱「豆娘」）溪蟌科。明顯的特徵是後膀近末端位置有一個像方格的黑色斑紋。牠們是香港第一個蜻蜓記錄。
一般而言，蜻蜓體型粗壯，複眼相連，休息時會把翅膀張開橫放；豆娘的體型則較為纖細，複眼分離，前翅和後翅的大小和形狀都很相似，休息時會把翅膀收合疊起。
Black-banded Gossammerwing belongs to the Anaconda (called “damselfly”) Ximenidae. The obvious feature is a checkered black marking near the end of the back wing. They are the first dragonfly recorded in Hong Kong.
Generally speaking, dragonflies are stout, with compound eyes connected, and will spread their wings horizontally when resting; damselflies are slender, with separated compound eyes; the forewings and hindwings are very similar in size and shape, and they will fold their wings while resting.
