Thelaxes dryophila (von Paula Schrank, 1801)

common oak-thelaxid

on Quercus

Thelaxes dryophila: aptera on Quercus robur

Quercus robur, England, Kent, Oaken Wood © Bob Dransfield & Bob Brightwell, InfluentialPoints

Thelaxes dryophila on Quercus petraea

Quercus petraea, Hungary, Budapest © László Érsek

Thelaxes dryophila apterae on Quercus petraea

old ad young apterae

Thelaxes dryophila apterae on Quercus petraea

detail

Thelaxes dryophila: larvae on on Quercus  petraea

Quercus petraea, Hungary, Budapest, Hűvösvölgy, 6.vii.2018 © László Érsek: two larvae

gall

aphids at the underside of young leaves, mainly along the midrib; leaves ± not discoloured. Ant-attendance.

hostplants

Fagaceae, monophagous

Quercus cerris, faginea, ilex, lusitanica, petraea, pubescens & subsp. subpyrenaica, pyrenaica, robur, rubra, x trabutii.

references

Barbagallo, Binazzi, Pennacchio & Pollini (2011a), Blackman & Eastop (2014), Buhr (1965a), Börner & Franz (1956a), Danielsson (1974a), Durak, Durak & Borowiak-Sobkowiak (0000a), Heie (1980a), Hellrigl (2004a), Influential Points (2016), Lampel & Meier (2003a), Mier Durante & Nieto Nafría (1981a, 1997a), Nieto Nafría & Mier Durante (1981a, 1989), Osiadacz & Wojciechowski (2008a), Petrović (1998a), Ripka, Reider & Szalay-Marzsó (1998a), Tambs-Lyche & Heie (1994a).

mod 15.vii.2018