Stenolechia gemmella (Linnaeus, 1758)

black-dotted groundling

on Quercus

Stenolechia gemmella: gall on Quercus robur

Quercus robur, Belgium, prov. East Flanders, Berlare, Heidemeersen, Heide Hoge Berg, 25.v.2018 © Ruben Meert

Stenolechia gemmella: gall on Quercus robur

The bored shoot dies off and the leaves wither

Stenolechia gemmella: larva in opened gall

within the gall a single grey larva

Stenolechia gemmella gall

Quercus cerris, Dronten © Arnold Grosscurt

Stenolechia gemmella vacated gall

vacated gall

parasite

The larva bores in May – June in a young shoot, that becomes slightly swollen and ultimately dies off.

hostplants

Fagaceae, monophagous

Quercus petraea, pubescens, robur.

references

Beguinot (2000b, 2001c, 2002a, 2007b), Bellmann (2012a), Buhr (1965a), Dauphin & Aniotsbehere (1997a), Hellrigl (2010a), Houard (1908a), Huemer (2012a), Redfern & Shirley (2011a), Roskam (2009a), Szőcs (1977a), Tomasi (2014a), Williams (2010a).

mod 24.ix.2018