Fraxinus excelsior, Denmark © Simon Haarder

underside

underside of a leaf with two galls, one opened

Fraxinus excelsior, Belgium, prov. Namur, Olloy-sur-Viroin, RN Fonds de Noye © Stéphane Claerebout

gall, underside

larva

gall

Lenticular gall in the leaf blade, 3-8 mm ø, with an irregular opening at the underside; often several in a leaflet. Larva solitary, white. Univoltine, hibernation in the soil.

hostplants

Oleaceae, monophagous

Fraxinus angustifolia & subsp. oxycarpa, excelsior.

references

Barnes (1951a), Béguinot (2007b, 2012a), Buhr (1964b), Dauphin & Aniotsbehere (1997a), Gagné (2010a), Hellrigl (2006a), Houard (1909a), Kollár (2011a), Lambinon, Carbonnelle & Claerebout (2015a), Lambinon, Schneider & Feitz (2001b), Lehmann & Hannover (2016a), Mirumian (2011a), Redfern & Shirley (2011a), Roskam (2009a), Roskam & Carbonnelle (2015a), Simova-Tošić, Skuhravá & Skuhravý (1996a, 2000a, 2004a, 2007a), Simova-Tošić, Skuhravá, Skuhravý & Postolovski (2007a), Skrzypczyńska (2007a), Skuhravá (2006a), Skuhravá & Skuhravý (1988a, 1992b, 1994b, 1997a, 1999a,b, 2003a, 2005b,c, 2006a, 2007a, 2008a, 2009a, 2010a,b, 2011a, 2012a, 2021a: 112), Skuhravá, Skuhravý & Buhr (2013a), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý, Dončev & Dimitrova (1991a, 1992a), Skuhravá, Skuhravý & Hellrigl (2001a), Skuhravá, Skuhravý & Jørgensen (2006a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý & Neacsu (1972a), Skuhravá, Skuhravý, Skrzypczyńska & Szadziewski (2008a), Tomasi (2014a).