Trigonaspis synaspis (Hartig, 1841)

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).

mod 22.viii.2019