Aceria campestricola (Frauenfeld, 1865)

on Ulmus

Aceria campestricola on Ulmus x hollandica

Ulmus x hollandica, Biddinghuizen, Spijk- en Bremerbergbos © Hans Jonkman: exceptionally strong infestation

Aceria campestricola galls

Ulmus x hollandica, Diemen, park Spoorzicht: upperside

Aceria campestricola galls

underside

Aceria campestricola gall

detail

Ulmus minor, Duin en Kruisberg: opened gall

Aceria campestricola galls

Ulmus laevis, Belgium, prov. Namur, Villers-sur-Lesse; © Jean-Yves Baugnée

Aceria campestricola galls

detail

Aceria campestricola: galls on Ulmus spec.

Ulmus spec., Hungary, Mosonmagyaróvár, 4.v.2917 © László Érsek

Aceria campestricola: gall

this gall with trichomes seems to form a third type

Aceria campestricola: gall underside

underside of the gall

Aceria campestricola: gall section

transverse section

Aceria campestricola: galls on Ulmus spec.

older galls, 6.vii.2917

Aceria campestricola: gall

detail

Aceria campestricola: gall underside

underside of the gall

Aceria campestricola: gall section

transverse section

host plants

Ulmaceae, monophagous

Ulmus glabra, x hollandica, laevis, minor.

notes

The gall occurs in at least two forms: as tiny, low pimples, and as somewhat larger, clearly stalked, dimples (lower two pictures). The first form has been described as Aceria ulmicola, the second as Aceria brevipunctata.

synonyms

Aceria brevipunctata (Nalepa, 1889); A. ulmi Nalepa 1890 nec (Garman, 1883); A. ulmicola Nalepa, 1909; Eriophyes ulmi.

This synonymy, based on the Fauna Europaea (2014), is controversial. Skoracka ao (2005a) recognise two species: campestricola (= ulmicola) and brevipuncta.

references

Béguinot (2002a,d, 2003a, 2006b,c, 2007b, 2012a), Bellmann (2012a), Blanes-Dalmau, Caballero-López & Pujade-Villar (2017a), Buhr (1965a), Chinery (2011a), Cogolludo (1921a), Dauphin & Aniotsbehere (1997a), Deckert & Deckert (2016a), Denizhan, Monfreda, de Lillo &a Çobanoglu (2015a), Farkas (1965a), Groom (2011a), Hellrigl (2003a, 2004b), Houard (1908a), Koops (2013a), Lambinon, Schneider & Feitz (2001a, 2012a), Máca (2012a), Petanović & Stanković (1999a), Redfern & Shirley (2011a), Ripka (2007a), Ripka & de Lillo (1997a), Roskam (2009a), Skoracka, Lewandowski & Boczek (2005a), Stănescu (2009a), Tomasi (2003a, 2014a).

mod 25.vi.2019