Fenella

Globally there are eleven species of Fenella distributed primarily across the palaearctic region. Two species are present in Britain and one (Fenella nigrita) in Ireland.

Within the Fenusini, the genus can be characterised by the following features. The antennae are long, being eleven to sixteen segmented. Tarsal claws are simple without a basal lobe. On the hind leg the fourth tarsomere is not produced apically. In the forewing the anal cell is complete though the basal vein A3 may be very weak.

Larvae mines the leaves of herbaceous Rosaceae and Geraniaceae (cf. Fenusa which mine the leaves of trees and shrubs).

Species list:

Fenella monilicornis (Dahlbom, 1835)

Fenella nigrita Westwood, 1840

References:

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

Benson, R. B. 1953: A revision of the genus Fenella Westwood (Hymen., Tenthredinidae). - (The) Proceedings of the Royal Entomological Society of London. Series B: Taxonomy, London 22 (7-8): 136-138

Lacourt, J. 1988: La tribu des Fenusini en Afrique du Nord (Hymenoptera, Tenthredinidae). - Nouvelle Revue d'Entomologie. Nouvelle Serié, Paris 5(1): 17-19

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

Pschorn-Walcher, H. & Altenhofer, E. 1989: The Parasitoid Community of Leafmining Sawflies (Fenusini and Heterarthrini): a Comparative Analysis. - Zoologischer Anzeiger, Leipzig 222(1-2): 37-56

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

Smith, D. R. 1981: Studies of the leaf-mining sawflies of the tribe Fenusini in Asia (Hymenoptera: Tenthredinidae). - Proceedings of the entomological Society of Washington, Washington 83(4): 763-771