Plagiotrochus razeti Barbotin, 1985
on Quercus, agamous generation
gall
fusiform swellings of the underground or just above-ground runners, 15 x 20 to 15 x 50 mm. In the gall a number of elliptic, 3 mm long, radially arranged gall chambers. Univoltine, pupation and hibernation in the gall.
primary host plants
Fagaceae, narrowly monophagous
Quercus coccifera, ilex.
on Quercus, sexual generation
gall
small (1 x 2 mm), obpyriform galls, usually 2-5 together, alongside a bud. Also a few gall chambers can be formed in the axis of a male inflorescence, that remains shortened and somewhat contorted. The wasps leave the gall within a few weeks.
primary host plants
Fagaceae, narrowly monophagous
Quercus coccifera, ilex.
inquilines
Synergus crassicornis. Galls of the sexual generation, occupied by Synergus turn quite larger and become more or less globular with an apical pustule.
references
Blanes-Dalmau, Caballero-López & Pujade-Villar (2017a), Dauphin & Aniotsbehere (1997a), Melika, Ros-Farré & Pujade-Villar (2001a), Nieves-Aldrey (2001a), Nieves-Aldrey, Gómez, Hernández Nieves & Lobo (2006a), Shachar, Melika, Inbar & Dorchin (2018a).