Phytoptus abnormis Garman, 1883
on Tilia

Tilia tomentosa, Hungary, Mosonmagyaróvár © László Érsek: srpring situation (May 10)

detail

underside of the leaf

horizontal section through a gall

summer aspect (July 22nd)

detail
Tilia tomentosa, Hungary, Budapest © László Érsek; summer aspect, underside gall
section
gall
Round, brownish pustules on the leaves, covered by a greyish brown felt and surrounded by a light seam.
hostplants
Malvaceae, narrowly monophagous
Tilia americana, tomentosa.
synonyms
Phytocoptella abnormis, Phytoptus tetratrichus abnormis.
notes
according to the Fauna Europaea (2014), this species is known only from Central Europe (Austria and Hungary); citations from Western Europe in all probability refer to Phytoptus tetratrichus.
references
Farkas (1965a), Hellrigl (2010a), Keifer, Baker, Kono ao (1982a), Koops (2013a), Lambinon Schneider & Feitz (2012a), O’Connor (2005c), Ripka (2007a), Ripka, Fain, Kaźmierski ao (2002a), Ripka & de Lillo (1997a).