Eurhadinoceraea ventralis (Panzer, 1799)

Lønnve, Ole Jørgen & J .., O., 2009, Notes on Norwegian sawflies (Hymenoptera, Symphyta) II. 13 species new to the Norwegian Fauna, Norwegian Journal of Entomology 56, pp. 50-56 : 52

* Eurhadinoceraea ventralis (Panzer, 1799)

Records: AK: Nesodden : Hellvik, EIS 28, 3 June 2006, 1♀ leg. Olberg, S. ; Nesodden : Skoklefall (UTMWGS8432 VNM935359 ), EIS 28, 11–23 June 2005, 5♀ leg. Lønnve, O. J. ; Nesodden : Skoklefall (UTMWGS8432 VNM935359 ), EIS 28, 9–10 June 2007, 1♂ leg. Lønnve, O. J. ; Ås : Rustad (UTMWGS8432 VPM016164 ), EIS 28, 6 June 2003, 1♀ leg. Aarvik, L. ; Ås : Rustad

(UTMWGS8432VPM016164), EIS 28, 29 May 2004, 1♀ leg. Aarvik, L.; BØ: Drammen: Underlia, EIS 28, May1999, 1♀ leg. Hansen, L. O.; Lier: Rypevegen, Lierskogen, EIS 28, 24 June–2 August 2002, 1♀ leg. Heibo, E. & Lønnve, O. J. (EH); OS, Lunner: Gruakollen (UTMWGS84 32 VNM916809 ), EIS 36, 19 June 2005, 1♂ 4♀ leg. Gammelmo, Ø.; STI, Trondheim: Stokkanhaugen, EIS 92, 15 June 2005, 2♀ leg. Ødegaard, F. (FØ/NHM) .

Notes: The hostplant is Clematis spp. ( Taeger et al., 1998). At Skoklefall, larvae of E. ventralis was collected in numbers on cultivated Clematis alpina . Cultivated Clematis spp. is common in gardens. C. alpina is natural, but very rare in Norway. Only known from some river-vallyes in Gudbrandsdalen, Oppland. An interesting feature of the Norwegian records is the presense of males. In Europa E. ventralis is a parthogenetic species ( Müller et al. 2004).