Eriophyes leionotus (Nalepa, 1891)
on Betula
Betula pubescens, België, prov. Namen, Andenne © Jean-Yves Baugnée
Betula pubescens, Belgium, prov. Namur, Andenne © Jean-Yves Baugnée
detail
Betula pubescens, Hollandsche Rading, Einde Gooi: bovenzijde
underside
underside, stronger magnification
transverse section
transverse section, stronger magnification
Betula pubescens, Eerbeek © Arnold Grosscurt
underside
the galled hairs are obtuse
the wall of the hairs is thin and smooth
gal
the galls are distributed along the midrib over the lower half of the leaf; the hairs of the gall are obtuse.
The tufts of hair in an ungalled vein axil have long and acute hairs, and this type of hairs does also occur in, and even more around, a galled axil!
hostplants
Betulaceae, narrowly monophagous
Betula maximowicziana, pubescens & var. pumila, pubescens x pendula.
synonym
Aceria leionota, Aculus leionotus; often incorrectly spelled as lionotus / lionota.
references
Béguinot (2002g,h, 2006a,b, 2007b, 2012a), Bellmann (2012a), Bellmann (2012a), Buhr (1964b), Coulianos & Holmåsen (1991a), Dauphin & Aniotsbehere (1997a), Dietrich (2016a), Farkas (1965a), Fjelddalen (1995a), Hellrigl (2003a), Houard (1908a), Jočić & Petanović (2012a), Koops (2013a), Lambinon, Carbonnelle & Claerebout (2015a), Petanović & Stanković (1999a), Redfern & Shirley (2011a), Roskam (2009a), Schneider (2016a), Skoracka, Lewandowski & Boczek (2005a), Sylvén (1960a), Tomasi (2003a, 2014a), Vaněčková-Skuhravá (1996a), Weidner (1954a).