Heptamelus viitasaarii sp. nov. Feeding traces and larvae in rachis of Athyrium filix-femina. A. External appearance of mined rachis; B, C. Mine cut open to show “ladder-like” feeding pattern, with larva; D, E. Larva.

 
 
  Part of: Liston A, Mutanen M, Heidemaa M, Blank SM, Kiljunen N, Taeger A, Viitasaari M, Vikberg V, Wutke S, Prous M (2022) Taxonomy and nomenclature of some Fennoscandian Sawflies, with descriptions of two new species (Hymenoptera, Symphyta). Deutsche Entomologische Zeitschrift 69(2): 151-218. https://doi.org/10.3897/dez.69.84080