Plagiotrochus australis (Mayr, 1882)
on Quercus, agamous generation
gall
This generation makes unilocular galls with a diameter of c. 1×4 mm under the bark of branches that are five to seven years old. They are “easiest” found by their exit holes.
host plants
Fagaceae, monophagous
Quercus coccifera, ilex.
on Quercus, sexual generation
Quercus ilex, Spanje, Asturias, Gijon: young gall; © Jean-Yves Baugnée
old gall, upperside
underside
opened gall
galls
Full grown, fresh galls are red and downy.
host plants
Fagaceae, monophagous
Quercus coccifera, ilex, rotundifolia, suber.
synonyms
Dryocosmus australis.
inquilines
Ceroptres cerri; Synergus ilicinus, plagiotrochi.
references
Béguinot (2003a), Blanes-Dalmau, Caballero-López & Pujade-Villar (2017a), Bowdrey & Notton (2019a), Cogolludo (1921a), Dauphin & Aniotsbehere (1997a), Hellrigl (2009a), Hellrigl & Bodur (2015a), Houard (1908a), Nieves-Aldrey (2001a), Nieves-Aldrey, Gómez, Hernández Nieves & Lobo (2006a), Pujade, Villemant & Andreï-Ruiz (2000a), Pujade-Villar (2005b), Redfern & Shirley (20011a), Salas-Remón, Llimona, Lozano ao (2015a), Tavares (1905a), Tomasi (2014a).