Figure 6 from: Liu S-L, Shih C-K, Ren D (2014) Four new species of hangingflies (Insecta, Mecoptera, Bittacidae) from the Middle Jurassic of northeastern China. ZooKeys 466: 77-94. https://doi.org/10.3897/zookeys.466.8047 - Liu, Sulin (2014)