Iteomyia major (Kieffer, 1889)
on Salix
Salix myrsinifolia, Norway, Saltdalen, Dalmo, 16.vii.2020 © Hallvard Elven: gall
Salix myrsinifolia, Norway, Saltdalen, Dalmo, 16.vii.2020 © Hallvard Elven: gall
Salix lanata, Norway, Breivika, Breivikdalen, 22.vii.2020 © Hallvard Elven: gall
Salix lanata, Norway, Breivika, Breivikdalen, 22.vii.2020 © Hallvard Elven: larva
Salix aurita, Roggebotzand © Hans Jonkman: upperside
underside
Salix cinerea, Kekerdom
Salix cinerea, Mierlo, Wolfsven; foto Arnold Grosscurt: young galls
same leaf, underside
Salix caprea, Roggebotzand © Hans Jonkman (and the much smaller gall of I. capreae)
underside
Salix cinerea, Amsterdamse Waterleidingduinen: gall, upperside
onderzijde
transverse section
Salix cinerea, Hungary, Mosonmagyaróvár, 20.v.2018 © László Érsek: in the case the opening of the gall is in the upper side
same four galls, underside
this section through two galls shows the beginning of the channel between the gall chamber and the opening in the wall of the gall.
gall
Thick-walled, hard unilocular swelling of the midrib or a thick side vein; generally several together, fused into a knobby complex. Each gall chamber is connected to the outside world by a small opening, mostly in the underside. Larva orange-red; a single generation per year; hibernation in the soil.
host plants
Salicaceae, monophagous
Salix aurita, bicolor, x calodendron, caprea, cinerea, cinerea subsp. oleifolia, elaeagnos, glauca, lanata, myrsinifolia, pentandra, phylicifolia, purpurea, silesiaca.
Strong preference for the broad-leaved sallows.
synonyms
Oligotrophus capreae var. major.
references
Barnes (1951a), Béguinot (2001c, 2002e,g, 2006a,c, 2007b, 2012a), Bellmann (2012a), Bruun (2015a), Buhr (1965a), Chinery (2011a), Cogolludo (1921a), Coulianos & Holmåsen (1991a), Dauphin & Aniotsbehere (1997a), Deckert & Deckert (2016a), Gagné (2010a), Groom (2011a), Houard (1908a), Koops (2013a), Lambinon, Carbonnelle & Claerebout (2015a), Lambinon, Schneider & Feitz (2001b), Lehmann & Flügel (2012a), Lehmann & Hannover (2016a), O’Connor & Wistow (1999a), Redfern & Shirley (2011a), Roskam (2009a), Roskam & Carbonnelle (2015a), Skuhravá & Skuhravý (2007a, 2010a,b, 2012a, 2021a: 242), Skuhravá, Skuhravý, Blasco-Zumeta & Pujade-Villar (2006a), Skuhravá, Skuhravý & Carbonnelle (2017a), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý & Jørgensen (2006a), Skuhravá, Skuhravý & Kettani (2017a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý, Skrzypczyńska & Szadziewski (2008a), Tavares (1905a).