Plant Parasites of Europe

leafminers, galls and fungi

Psyllopsis fraxini

Psyllopsis fraxini (Linnaeus, 1758)

on Fraxinus

Psyllopsis cf fraxini: gall on Fraxinus excelsior

Fraxinus excelsior, Hungary, Budapest, Hűvösvölgy, © László Érsek

Psyllopsis cf fraxini: gall on Fraxinus excelsior

the larvae produce much wolly wax

Psyllopsis cf fraxini: gall on Fraxinus excelsior

section through the gall

Psyllopsis cf fraxini: larva


Psyllopsis cf fraxini: larva


Psyllopsis cf fraxini: imago

imago, ± lateral

Psyllopsis cf fraxini: imago


Psyllopsis cf fraxini:  predatory syrphid larva

in the gall also a predating syrphid larva was present

Psyllopsis fraxini

Fraxinus excelsior, Dronten © Arnold Grosscurt

Psyllopsis fraxini: gall on Fraxinus excelsior

Fraxinus excelsior, Lienden, Mars, 2013 © Leo Blommers


Psyllopsis fraxini gall larva

Fraxinus excelsior, Duin en Kruidberg, 30.vii.2006: young larva, with white wax excretions

Psyllopsis fraxini gall

Fraxinus excelsior, Belgium, prov. Liège, Flémalle-Haute, © Jean-Yves Baugnée

Psyllopsis fraxini

older larve, with well-developed pigmentation


Oviposition on a terminal leaf bud; two generations, both causing leaf galls; hibernation as egg on the bark of the host plant. The larvae are dark.

host plants

Oleaceae, monophagous

Fraxinus angustifolia subsp. oxycarpa, excelsior, ornus.

In his list of Psylloidea host plants, Burckhardt (2002a) mentions F. excelsior only.


P. fraxini is, at least in northwestern Europe, the commonest of a group of species that all cause identical galls on ash. For an identification of these Psyllopsis species a microscopical examination of the larvae or the male genitalia is required.


Abras, Fassotte, Chandelier & Cavelier (2008a), Baugnée, Burckhardt & Fassotte (2002a), Béguinot (2001c, 2002a,d,h, 2003a, 2005a, 2006c, 2007a,b, 2012a), Bellmann (2012a), den Bieman, Malenovský, Burckhardt & Heijerman (2019a), Blanes-Dalmau, Caballero-López & Pujade-Villar (2017a), Braggion (2013a), Buhr (1964b), Burckhardt (1983a, 2002a), Burckhardt & Freuler (2000a), Chinery (2011a), Cogolludo (1921a), Conci, Rapisarda & Tamanini (1992a), Dauphin & Aniotsbehere (1997a), Flügel (2016a), Hellrigl (2004a), Hodkinson (2009a), Hodkinson & White (1979a), Houard (1909a), Jerinić-Prodanović (2010a), Kollár (2007a, 2011a), Koops (2013a), Lambinon, Carbonnelle & Claerebout (2015a), Lambinon & Romain (2009a), Lambinon & Schneider (2004a)m Lauterer & Dorow (2010a), Lehmann & Hannover (2016a), Malenovský, Baňař & Kment (2011a), Malenkovský & Lauterer (2012a), O’Connor & Malumphy (2011a), Ossiannilsson (1992a), Ouvrard, Burckhardt & Cocquempot (2015a), Redfern & Shirley, 2002a). Roques, Cleary, Matsiakh & Eschem (2017a), Roskam (2009a), Seljak (2006a, 2020a), Stănescu (2009a), Sylvén (1960a), Tavares (1905a), Tomasi (2003a, 2012a, 2014a), White & Hodkinson (1982a).

Last modified 1.xii.2020