Rhopalomyia foliorum (Löw, 1850)
on Artemisia
Artemisia vulgaris, Norway, Ellingsrud, 27.vi.2022 © Hallvard Elven: female
Artemisia vulgaris, Norway, Ellingsrud, 27.vi.2022 © Hallvard Elven: female
Artemisia vulgaris, Norway, Ellingsrud, 27.vi.2022 © Hallvard Elven: gall
Artemisia vulgaris, Norway, Ellingsrud, 27.vi.2022 © Hallvard Elven: gall
Artemisia vulgaris, Norway, Ellingsrud, 27.vi.2022 © Hallvard Elven: gall
Artemisia vulgaris, Belgium, prov. Antwerp, Oud-Turnhout, de Liereman © Carina Van Steenwinkel
gall with exuvium
at the tip of the stems the leaves are strongly distorted
Artemisia vulgaris, Belgium, prov. Namur, Couvin, Brûly, Try Pochaux © Sébastien Carbonnelle
the gall is thin-walled
a larva, taken out of its gall
the development of the plant was strongy disturbed
Achillea ptarmica, Polen, Nur © Sébastien Carbonnelle
another specimen
gall
Small oval galls, c. 2 mm long, usually yellow or purple, on the stem or leaf, and then generally at the upperside of a thick vein. Larva solitary, dirty yellow. Several generations; the larvae of the summer generation pupate in the galls, the winter generation hibernates in the soil, then pupates.
hostplants
Asteraceae, monophagous
Artemisia abrotanum, montana, princeps, vulgaris.
See also the note below.
larva
the prosternum has no spatula (from Möhn, 1955a). See also Ganaha ao.
synonyms
Diarthronomyia foliorum.
notes
Rh. foliorum is known exclusively from Artemisia; a comparable gall on Achillea is not known. Because of the relatively close relationship between the two genera, the galls on Achillea ptarmica depicted above are provisionally iddentified as cf. Rh. foliorum.
references
Bruun (2015a), Buhr (1964b), Burton, Carbonnelle, Ellis & Schneider (2019a), Chinery (2011a), Dauphin & Aniotsbeehere (1997a), Gagné (2010a), Ganaha, Sato, Uechi ao (2007a), Houard (1909a), Koops (2013a), Lambinon, Carbonnelle & Claerebout (2015a), Redfern & Shirley (2011a), Roskam (2009a), Roskam & Carbonnelle (2015a), Simova-Tošić, Skuhravá & Skuhravý (1996a, 2000a, 2004a, 2007a), Simova-Tošić, Skuhravá, Skuhravý & Postolovski (2007a), Skrzypczyńska (2007a), Skuhravá & Skuhravý (1988a, 1994a,b, 1997a, 1999a, 2005b, 2009a, 2010a,b, 2021a: 41), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý, Dončev & Dimitrova (1991a, 1992a), Skuhravá, Skuhravý & Jørgensen (2006a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý & Neacsu (1972a), Skuhravá, Skuhravý, Skrzypczyńska & Szadziewski (2008a), Tomasi (2014a).