Psyllopsis fraxini (Linnaeus, 1758)

on Fraxinus

Psyllopsis fraxini

Fraxinus excelsior, Dronten © Arnold Grosscurt

Psyllopsis fraxini: gall on Fraxinus excelsior

Fraxinus excelsior, Lienden, Mars © Leo Blommers

Psyllopsis fraxini gall larva

Fraxinus excelsior, Duin en Kruidberg; 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

parasiet

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.

notes

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.

references

Abras, Fassotte, Chandelier & Cavelier (2008a), Baugnée, Burckhardt & Fassotte (2002a), Béguinot (2001c, 2002a,d,h, 2003a, 2005a, 2006c, 2007a,b, 2012a), Bellmann (2012a), 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), Malenkovský & Lauterer (2012a), O’Connor & Malumphy (2011a), Ossiannilsson (1992a), Ouvrard, Burckhardt & Cocquempot (2015a), Redfern & Shirley, 2002a), Roskam (2009a), Seljak (2006a), Stănescu (2009a), Sylvén (1960a), Tomasi (2003a, 2012a, 2014a), White & Hodkinson (1982a).

mod 3.ii.2019