Genus Parna

Parna

Parna is a small genus of seven species from the palaearctic region. In Britain there are two species. The genus is absent from Ireland.

The genus can be characterised within the Fenusini by the following features. The pedicel is longer than broad. The post-genal carina is present and extends behind the eyes and the prepectus is present. In the forewing the stub vein A2+A3 is straight. The hind wing has the radial cell present. The tarsal claws have a basal lobe but no inner tooth.

Larvae feed in marginal leaf mines of Tilia species causing leaf deformity.

Species list:

Parna apicalis (Brischke, 1888)

Parna tenella (KIug, 1816)

References:

Altenhofer, E. & Pschorn-Walcher, H. 1998: Biologische Notizen über zwei Gattungen minierender Blattwespen: Hinatara Benson und Parna Benson (Hymenoptera: Tenthredinidae). - Linzer biologische Beiträge, Linz 30(1): 439-445

Benson, R.B., 1952. Handbooks for the Identification of British Insects. Hymenoptera, Symphyta, Vol 6, Section 2(a-c), Royal Entomological Society, London

Edmunds, R.; Hind, S.; Liston, A. D. & Palmer, K. 2007: Parna apicalis (Brischke, 1888) (Symphyta: Tenthredinidae), a Leaf-mining Sawfly New to Great Britain. - The Entomologist's Record and Journal of Variation, London 119: 223-226

Edmunds, R. 2009: The distribution of Parna apicalis (Brischke, 1888) (Sym.: Tenthredinidae) in Britain. - Entomologist's Record and Journal of Variation 121(5): 235-236.

Halstead, A. J. 2004: The host plants of the lime leaf-mining sawfly Parna tenella (Klug) (Hym: Tenthredinidae) in Britain. - British Journal of Entomology and Natural History, London 17: 115-117

Heidemaa, M. & Viitasaari, M. 1997: Parna reseri, a new leaf miner for the fauna of northern Europe (Hymenoptera, Tenthredinidae). - Proceedings of the Estonian Academy of Sciences. Biology, Ecology, Tartu 46 (3): 191-192

Liston A, Knight G, Sheppard D, Broad G, Livermore L (2014) Checklist of British and Irish Hymenoptera - Sawflies, ‘Symphyta’. Biodiversity Data Journal 2: e1168. https://doi.org/10.3897/BDJ.2.e1168

Smith, D. R. 1971: Nearctic Sawflies. III. Heterarthrinae: Adults and larvae (Hymenoptera: Tenthredinidae). - Technical Bulletin, U.S. Department of Agriculture, Washington 1420: 1-84

Smith, D. R. 1976: World genera of the leaf-mining sawfly tribe Fenusini (Hymenoptera: Tenthredinidae). - Entomologica scandinavica, Copenhagen 7: 253-260