(10187) KOIWA, I., 1980. [Dragonfly list of the city of Morioka. 1], Iwalemushinokai-Kaihou 4: 9-11. (Jap., with taxonomic nomenclature). – (Author’s address not stated). An annotated list of 16 spp. (Zygopt., Anisozygopt., Petaluridae). Numerous adult Sympecma paedisca were found hibernating in a roof of a manure tank. – Cf, also OA 8502, 10194, 10284.