Tachopteryx thoreyi (Hagen in Selys) is an uncommon or rare, fen and seep dwelling dragonfly noted for its large size, restricted habitat requirements, and characteristic habit of perching on tree trunks.
Waltz, R. D.
"Gleaning on Coreidae (Heteroptera) by Tachopteryx Thoreyi (Odonata: Petaluridae),"
The Great Lakes Entomologist, vol 31
Available at: https://scholar.valpo.edu/tgle/vol31/iss3/12