Cladardis

A small genus of four species globally mostly in the Palaearctic. In Britain represented by one species and absent from Ireland.

The genus Cladardis is characterised within Blennocampini by the following features. In the forewing the stub vein A3 is upturned apically. The pedicel is scarcely longer than broad. The genal carina is absent and the head is shining without sculpture.

Larvae bore the stems of Rosa.

Species list:

Cladardis elongatula (Klug, 1817)

References:

Benes, K. 1968: Description of the Larvae of Sterictiphora geminata and Cladardis elongatula (Hymenoptera, Symphyta). - Acta entomologica bohemoslovaca, Praha 65(3): 222-225

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

Fenili, G. A. 1975: Contributi allo studio degli Hymenoptera Symphyta Cladardis elongatula (Klug) (Tenthredinidae, Blennocampinae). - Redia. Giornale di Entomologia, Firenze 56: 489-542

Halstead, A. J. 2018: Two stem-boring sawflies new to Britain, Janus compressus (Hym.: Cephidae) and Cladardis elongatula (Hym.: Tenthredinidae). - British journal of entomology and natural history 31: 27-29.

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

Viitasaari, M. 1974: Cladardis elongatula (Kl) (Hymenoptera, Tenthredinidae) tavattu jälleen Suomessa. - Annales Entomologici Fennici, Helsinki 40 (1): 48

Zombori, L. 1976: Cladardis bordonii sp. n. and some other sawflies from Italy (Hymenoptera, Symphyta). - Redia. Giornale di Entomologia, Firenze 59(ser. 3): 77-83