Pemphigus spyrothecae Passerini, 1860

poplar spiral gall aphid

on Populus

Pemphigus spyrothecae: gall on Populus

Populus, Britain, Norfolk, The Brecks © Rob Edmunds

Pemphigus sphyrothecae gall

Populus nigra cv.’Italica’, Belgium, prov. Liège, Flémalle-Haute © Jean-Yves Baugnée

Pemphigus spyrothecae: gall on Populus nigra

Populus nigra, Hungary, Mosonmagyaróvár © László Érsek

Pemphigus spyrothecae: opened gall

opened gall

Pemphigus spyrothecae: aphids

three aphids

galls

Populus nigra, Kekerdom

dw dsn

transverse section

aphid

an aphid, without most of its waxy cover

Pemphigus spyrothecae: galls on Populus nigra

Populus nigra, Groningen © Arnold Grosscurt: galled leaves may be dropped in high numbers, and definitely precocious (photo end August)

gal

Het aantal windingen van de spiraal is 3-4, zelden 5. In tegenstelling tot bij de meeste verwante soorten, heeft bij deze soort geen waardwisseling plaats. De gallen zijn “rijp” in augustus, september.

gall

The number of spirals is 3-4, rarely 5. Contrary to most related species there is no host alternation. The galls are fully developed in August, September.

host plants

Salicaceae, monophagous

Populus alba, balsamifera, x berolinensis, x canadensis, nigra, simonii.

In a botanical garden also on P. laurifolia (Groom, 2011a).

synonyms

Pemphigus inflatae del Guercio, 1911.

references

Alton (1999a), Barbagallo, Binazzi, Pennacchio & Pollini (2011a), Barbagallo & Massimino Cocuzza (2014a), Barbagallo & Pollini (2014a), Béguinot (2002h, 2003a, 2006c, 2012a), Bellmann (2012a), Blackman & Eastop (2014), Blanes-Dalmau, Caballero-López & Pujade-Villar (2017a), Börner & Franz (1956a), Braggion (2013a), Buhr (1965a), Chinery (2011a), Cogolludo (1921a), Coulianos & Holmåsen (1991a), Dauphin & Aniotsbehere (1997a), Groom (2011a), Heie (1980a), Houard (1908a), Ilie & Marinescu (2011a), Kollár (2007a, 2011a), Lambinon, Carbonnelle & Claerebout (2015a), Lambinon & Schneider (2004a), Lampel (1988a), Lampel & Meier (2003a), Lehmann & Flügel (2012a), Mier Durante, Seco Fernández & Nieto Nafría (1989a), Nieto Nafría & Mier Durante (1981a), Nieto Nafría, Mier Durante, Binazzi & Pérez Hidalgo (2002a), Osiadacz & Halaj (2014a), Papapanagiotou, Nathanailidou, Taylor ao (2012a), Pellizzari (2010a), Pérez Hidalgo, Martínez Peláez & Nieto Nafría (2001a), Petrović (1998a), Pike (2007a), Pike & Foster (2004a), Rakauskas & Trukšinaitė (2011a), Redfern & Shirley (2011a), Ripka, Reider & Szalay-Marzsó (1998a), Roskam (2009a), Salas-Remón, Llimona, Lozano ao (2015a), Suay Cano & González Funes (1998c), Stănescu (2009a), Sylvén (1960a), Tambs-Lyche & Heie (1994a), Tomasi (2003a, 2012a, 2014a), Urban (2002a), Wojciechowski, Depa, Halgoš ao (2016a).

mod 3.ii.2019