Pemphigus spyrothecae
Pemphigus spyrothecae is an aphid that causes galls to form in the leaf petioles of its host trees. The galls are seen more often than the aphid. The galled petioles have 2-3 twists, which loosen up later in the year to release aphids through a slit along the gall.
The rare Pemphigus protospirae has gall with more than 3 twists, and only slight thickening of the petiole. It has not been recorded in VC55
Gall 
Adult 
Anywhere that poplar trees are present.
Galls from June to late autumn.
It is an aphid that lives in colonies and soldier aphids tend to be located near to the opening of the gall to defend it from predators.
Widespread and thought to be fairly frequent in England.
Status in Leicestershire and Rutland not known.
Graham Calow
Sapcote
14 September 2012
on Lombardy Poplar
Graham Calow
Sapcote
14 September 2012
petiole gall on Lombardy Poplar
Graham Calow
Claybrooke Magna
05 June 2016
David Nicholls
Leicester, Ellis Meadows
30 June 2021
Hazel Graves
nr Dishley Pool
26 September 2021
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Species profile
- Species group:
- Bugs
- Kingdom:
- Animalia
- Order:
- Hemiptera
- Family:
- Aphididae
- Records on NatureSpot:
- 49
- First record:
- 02/09/2012 (Semper, Alan)
- Last record:
- 02/10/2023 (Higgott, Mike)
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martindgrimes
Exton
07 July 2022
Graham Calow
Claybrooke Magna
05 June 2016
Hazel Graves
nr Dishley Pool
26 September 2021
Alan Semper
Harby, Langar La
02 September 2012
Spiral gall on Poplar
Alan Semper
Harby, Langar La
02 September 2012
Spiral gall on Poplar
Saharima Roenisch
Knighton Park
20 September 2020
