Trichochermes walkeri (Foerster, 1848)

on Rhamnus

Rhamnus cathartica, Hungary, Mosonmagyaróvár © László Érsek

length section through a gall

transverse section


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


Rhamnaceae, ± narrowly monophagous

Rhamnus cathartica.

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


Trichopsylla walkeri.


In summer the vacated galls are occupied by Aphis commensalis.


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).


mod 17.xi.2017