Neuroterus politus Hartig, 1840

on Quercus; agamous generation

Neuroterus politus agamous generation gall

Quercus robur, Belgium, prov. Antwerp, Mol © Carina Van Steenwinkel

Neuroterus politus agamous generation gall

beginning gall

Neuroterus politus agamous generation gall

ripe gall; the remnant of the loculi still clearly recognisable

Neuroterus politus agamous generation gall

one week later

Neuroterus politus agamous generation gall

Quercus robur, Belgium, prov. Antwerp, Keyfheide-Meerhout © Carina Van Steenwinkel: the galls may be quite numerous

Quercus robur, Spain, A Coruña, Cesuras © Jordi Montobbio

Neuroterus politus: agamous anther gall on Quercus robur

another specimen

The agamous generation makes a tiny unilocular gall, hardly over one milimeter, in the connective of a stamen. Initially the anthers remain well distinguishable.

host plants

Fagaceae, monophagous

Quercus faginea, lusitanica, petraea & subsp. iberica, pubescens, pyrenaica, robur.

Preference for Q. pubesccens.


on Quercus; sexual generation

Neuroterus politus: gall on Quercus robur

Quercus robur (from Houard, 1908a)

Neuroterus politus: gall on Quercus robur

Quercus robur Belgium, prov. Namur, Étang de Virelles © Stéphane Claerebout

Neuroterus politus: bud gall on Quercus robur

Quercus robur, Spain, A Coruña, Cesuras © Jordi Montobbio

Neuroterus politus: bud gall on Quercus robur

opened gall with pupa

Neuroterus politus: bud gall on Quercus robur

Quercus robur, Spain, A Coruña, O Pino © Jordi Montobbio: vacated gall

Neuroterus politus fm

Quercus robur, Schiedam, Pr. Beatrixpark; © Ben van As

Neuroterus politus fm

opened gal

gall

About 1 cm long pale green gall consisting of an already unfolding leaf bud (generally a terminal bud). The bud scales participate in the gall, often only their ultimate tips remain brown and scarious. The wall is thin and encloses a spacious gall chamber. The development starts in early spring and is so fast that sometimes galls are already vacated before the foliage is unfolded. The gall matures in May; then it starts to shrivel and remains recognisable only by the distorted bud.

host plants

Fagaceae, monophagous

Quercus petraea, pubescens, pyrenaica, robur.

synonyms

Neuroterus aprilinus Giraud, 1859; N. petioliventris (Hartig, 1840); N. schlechtendali Mayr, 1870.

references

Béguinot (2000b, 2002a, 2003b, 2007b), Bellmann (2012a), Blanes-Dalmau, Caballero-López & Pujade-Villar (2017a), Buhr (1965a), Chinery (2011a), Dauphin & Aniotsbehere (1997), Eady & Quinlan (1963a), Ecott (2012a), Hellrigl (2009a, 2010a), Hellrigl & Bodur (2015a), Houard (1908a), Katılmış & Kıyak (2008a), Koops (2013a), Kwast (2012a, 2014a), Melika (2006a), Melika, Csóka & Pujade-Villar (2000a), Nieves-Aldrey (2001a), Nieves-Aldrey, Gómez, Hernández Nieves & Lobo (2006a), Redfern & Shirley (2011a), Roskam (2009a), Tavares (1905a), Vilarrubia Garet (1956a), Williams (2010a).

mod 22.viii.2019