Trichochermes walkeri (Foerster, 1848)

Hemiptera, Triozidae

on Rhamnus

Rhamnus cathartica, Hungary, Mosonmagyaróvár © László Érsek

length section through a gall

transverse section

larva

Trichochermes walkeri gall on Rhamnus cathartica

Rhamnus cathartica, Belgium, prov. Luxembourg, Resteigne; © Jean-Yves Baugnée

Trichochermes walkeri: gall on Rhamnus cathartica

Rhamnus cathartica, Duitsland, Beieren, Pfronten: the leaf margin is rolled upwards, and the underside of the leaf there often is strongly pilose; © Arnold Grosscurt

hostplants

Rhamnaceae, ± narrowly monophagous

Rhamnus cathartica.

References tp Frangula alnus, R. saxatilis are dpoubted by Conci ao.

synonyms

Trichopsylla walkeri.

inquilines

In summer the vacated galls are occupied by Aphis commensalis.

references

Béguinot (2002e,f,h, 2003b, 2005a, 2012a), Bellmann (2012a), Blackman & Eastop (2014), Buhr (1965a), Burckhardt (1983, 2002a), Chinery (2011a), Cogolludo (1921a), Conci, Rapisarda & Tamanini (1996a), Coulianos & Holmåsen (1991a), Dauphin & Aniotsbehere (1997a), Deckert & Deckert (2016a), Hellrigl (2004a), Kollár (2011a), Koops (2013a), Lambinon, Carbonelle & Claerebout (2015a), Lambinon & Schneider (2004a), Lauterer (1982a), Lehmann & Hannover (2016a), Ludwig (1974a), Malenkovský & Lauterer (2012a), Máca (2012a), Ossiannilsson (1992a), Ouvrard, Burckhardt & Cocquempot (2015a), Redfern & Shirley (2011a), Seljak (2006a), Stefănescu (2009a), Tomasi (2003a, 2014a), White & Hodkinson (1982a).

04/03/2017

pub 4.iii.2017 · mod 7.vii.2017