Contributions to Zoology, 86 (3) – 2017Xin Tong; Lu Jiang; Bao-Zhen Hua: A unique mating pattern of Panorpodes kuandianensis (Mecoptera: Panorpodidae)
Material and Methods

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Freeze-fixation of copulating pairs

Pairs in copula were frozen through carbon dioxide aerosol spray compressed in hydraulic cans, and were immediately fixed in Carnoy’s solution at room temperature for 24–48 h to stabilize the interactions of their genital structures and preserved in 75% ethanol.