Trigonaspis synaspis (Hartig, 1841)on Quercus, agamous generation
gall
on Quercus, agamous generation
gall
globular to obconical gall with a diameter of 5-7 mm at the underside of the leaf; the gall tissue is juicy, but the gall chamber is surrounded by a hard layer.
primary host plants
Fagaceae, monophagous
Quercus lusitanica, petraea, pubescens, robur.
on Quercus, sexual generation
gall
indistinguishable from the gall of the sexual generation of Trigonaspis megaptera. At least in the Netherlands synaspis is the more rare species by far; also the galls of synaspis are hidden more deeply in the leaf litter (Roskam).
primary host plants
Fagaceae, monophagous
Quercus petraea, pubescens, robur.
synonyms
Trigonaspis megapteropsis Wriese, 1900.
inquilines
Synergus physoceras, thaumacerus.
references
Bellmann (2012a), Blanes-Dalmau, Caballero-López & Pujade-Villar (2017a), Buhr (1965a), Cerasa (2015a), Cogolludo (1921a), Dauphin & Aniotsbehere (1997a), Hellrigl (2009a, 2010a), Hellrigl & Bodur (2015a), Houard (1908a), Katılmış & Kıyak (2008a), Kemal & Koçak (2010a), Kwast (2014a), Melika (2006a), Mete & Demirsoy (2012a), Nieves-Aldrey (2001a), Nieves-Aldrey, Gómez, Hernández Nieves & Lobo (2006a), Roskam (2009a), Tavares (1905a).