Female genital structures of Cylindrotoma distinctissima (Meigen, 1818) (A–J) and C. americana Osten Sacken, 1865 (K) A terminalia, dorsal view B terminalia, lateral view C shape variant of median lobe of tergite 10 (Krasnodar Krai, Russia) D shape variant of median lobe of tergite 10 (Finland) E sternite 8 and hypogynial valves, inner dorsal view F shape variant of tip of the hypogynial valve G sternite 10 H genital opening and sperm ducts I spermathecae (Japan) J spermathecae (Finland) K spermathecae of C. americana Osten Sacken, 1865. Abbreviations: ce – cutting edge; crc – cercus; hv – hypogynial valve; t8 – tergite 8; t9 – tergite 9; t10 – tergite 10; t10s – tergite 10 triangular sclerite; t10ll – tergite 10 lateral lobe; s8 – stergite 8.

 
 
  Part of: Kolcsár L-P, Paramonov N, Imada Y, Kato D, Gamboa M, Shinoka D, Kato M, Watanabe K (2022) Notes on the taxonomic status and distribution of some Cylindrotomidae (Diptera, Tipuloidea), with emphasis on Japanese species. ZooKeys 1083: 13-88. https://doi.org/10.3897/zookeys.1083.75624