Acalitus longisetosus (Nalepa, 1892)
on Betula

Betula pubescens, Finland, Lieksa; © Ben van As

Betula pubescens, Belgium, prov. Limburg, Houthalen-Hechteren, Hengelhoef © Carina Van Steenwinkel

erineum

erineum hairs (trichomes)

erineum hair (trichome)
gall
The hairs of the erineum are short, mushroom-shaped.
hostplants
Betulaceae, ? monophagous
Betula humilis, nana, pendula, pubescens.
According to Skoracka (ea, 2005a) also on Alnus glutinosa!
synonyms
Aceria longisetosa, Aceria rudis longisetosa; Eriophyes longisetosus.
references
Béguinot (2007b), Bellmann (2012a), Buhr (1964b), Coulianos & Holmåsen (1991a), Dauphin & Aniotsbehere (1997a), Farkas (1965a), Fjelddalen (1995a), Hellrigl (2003a), Houard (1908a), Lambinon, Carbonnelle & Claerebout (2015a), Nalepa (1919a), Redfern & Shirley (2011a), Roskam (2009a), Skoracka, Lewandowski & Boczek (2005a), Tomasi (2003a), Vaněčková-Skuhravá (1996a), Wahlgren (1963b), Weidner (1954a).