This new genus is rather similar to Hemeroscopus Pritykina, 1977, but differs from the latter in the following characters:(1) hindwing anal loop is smaller, only with 6-7 cells; (2) Rspl is absent; (3) the hindwing vein CuAa is curved and has five distinct posterior branches; (4) the forewing MP is not shortened, reaching the posterior wing margin slightly beyond the level of the nodus; (5) pterostigmata more distinctly braced; (6) the hindwing area between MP and CuAa is narrow, with only one row of cells near the discoidal triangle.
新属与巴依萨昼蜓HemeroscopusPritykina，1977在形态上比较相似，但在演化程度上更为原始，主要体现在下面几个方面：(1)后翅臀套较小，仅有 6～ 7个翅室；(2)径增脉缺；(3)后翅CuAa脉弯曲，带有 5个明显的后分支；(4)前翅MP脉不显短，终止于翅后缘近翅结处；(5)翅痣下有一个明显的支脉；(6)后翅CuAa和MP域基部较窄，在三角室下方仅有 1排翅室。