Pseudodineura enslini (HERING, 1923)

Liston, A. D., Knight, G. T., Heibo, E., Bland, K. P., Barstad, Trond Elling, Blank, S. M., Boeve, J. - L., Fiedler, K., Grearson, K. J., Halstead, A., Jacobs, H. - J., Jansen, E., Lonnve, O., Prous, M., Robinson, J. & Taeger, A., 2012, On Scottish sawflies, with results of the 14 International Sawfly Workshop, in the southern Highlands, 2010 (Hymenoptera, Symphyta), Beiträge Zur Entomologie = Contributions to Entomology 62, pp. 1-68 : 51

Pseudodineura enslini (HERING, 1923)

The Lunkard, Craig Maud , Angus, NO2377 (90) leafmines in Trollius 12.vii.1995 [5831] (reared) leg. Bland.

Inchnadamph NNR, Suth., NC 2619 (108) leafmines in Trollius 17.viii.2002 leg. Bland.

Strathy Graveyard, Suth., NC8365 (108), vacated leafmines in Trollius 13.viii.1994 leg. Bland.

Loch Iubhair, Perths., NN4226.(88) leafmines in Trollius 12.viii.2001, 25.vi.2004, 6.x.2005 leg. Bland.

Glen Fender Meadows NN8967 (89) leafmines in Trollius 7.xi.1998, 3.viii.1999 leg. Bland.

Fendoch Marsh, Perths., NN9027 (88) leafmines in Trollius 3.ix.2005 leg. Bland.

Brerachan Meadow, Perths., NO0163.(89), leafmines in Trollius 3.vii.2004,13. vii.2004 (reared) K.P. Bland.

Allt Féith Làir, Perths., NO0180 (89), leafmines in Trollius 27.ix.1997 [6758] leg. Bland.

Caenlochan Crags , Angus, NO1776, ex blotch mine in Trollius europaeus , collected 27.vii.2001, 1 ♀ 1 ♂ emerged 29.iv.-2.v.2002: mines also 8.viii.2002, 14.vii.2003, 6.viii.2005, 8.viii.2008 leg. Bland.

Meall nan Tarmachan, below crags above Lochan na Lairige, 2 leaf-mines with larvae on Trollius europaeus , 22.vi.2010, leg. Liston.

Benson (1958) noted occurrences of Pseudodineura enslini in Scotland at one locality each in Moray and Sutherland and Liston (1985) recorded it from a locality in Aberdeenshire. However, as exemplified by the records above, Bland has observed that P. enslini occurs on nearly every of the many Highland populations of Trollius that he has visited. The very long period of occurrence of leaf mines in Scotland (above: from late June to late September) raises the question of whether P. enslini may be bivoltine in Scotland. Dates of occurrence in Central Europe were discussed, somewhat inconclusively, by Altenhofer & Pschorn-Walcher (2006). In the colline zone of Lower Bavaria, Germany, P. enslini is univoltine (Liston, pers. obs.).