Polystepha malpighii (Kieffer, 1909)

on Quercus

Polystepha malpighii: gall on Quercus robur

Quercus robur, Meijendel, 13.vi.2014 © Hans Roskam

Polystepha malpighii: gall on Quercus robur

same leaf, underside

Polystepha malpighii: vacated gall on Quercus robur

Quercus robur, Biddinghuizen, Spijk- en Bremerbergbos, 10.vi.2016 © Hans Jonkman: old gall

Polystepha malpighii: vacated gall on Quercus robur

same gall, underside

gall

Lenticular gall in the blade, c. 4 mm ø, upperside somewhat more distinct than underside; often several per leaf. The larva leaves the gall via a hole in the underside. Univoltine, hibernation in the ground.

host plants

Fagaceae, monophagous

Quercus petrea, pubescens, robur.

distribution within Europe

(PESI, 2019).

synonyms

Dasineura, Perrisia, malpighii.

notes

The galls of Polystepha malpighii and P. quercus can only be identified reliably by breeding. The identification of the pictures above therefore has a margin of uncertainty.

references

Bruun (2015a), Buhr (1965a), Dauphin & Aniotsbehere (1997a), Gagné (2010a), Kieffer (1909a), Lambinon Schneider & Feitz (2012a), Redfern & Shirley (2011a), Roskam (2009a), Roskam & Carbonnelle (2015a), Simova-Tošić, Skuhravá & Skuhravý (2004a, 2007a), Skuhravá & Skuhravý (1997b, 2005c, 2009b, 2010a), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý & Dengler (1997a), Skuhravá, Skuhravý & Hellrigl (2001a), Skuhravá, Skuhravý & Jørgensen (2006a), Skuhravá, Skuhravý & Meyer (2014a), Williams (2010a).

mod 11.vi.2019