Hypericum perforatum, Belgium, prov. Namur, Finnevaux; © Jean-Yves Baugnée

gall

The topmost leaf pair of a sterile stem is strongly thickened, broadened and shortened, often also coloured red, and forms a spherical gall. In the spacious gall chamber one or two orange larvae, or their pupae. Bivoltine.

host plants

Hypericaceae, monophagous

Hypericum hirsutum, humifusum, maculatum, montanum, perforatum & subsp. veronense, maculatum, pulchrum, tetrapterum, tomentosum, undulatum.

larva

spatula with papillae (from Möhn, 1955a)

synonyms

Xerodiplosis giardiana (Kieffer, 1897).

notes

Introduced in many regions for the biological control of Hypericum perforatum.

references

Béguinot (2006a, 2007b), Bruun, Jørgensen & Skuhravá (2012a), Buhr (1964b), Dauphin & Aniotsbehere (1997a), Gagné (2010a), Houard (1909a), Lambinon, Carbonnelle & Claerebout (2015a), Mirumian (2011a), Möhn (1955a), Redfern & Shirley (2011a), Roskam & Carbonnelle (2015a), Sánchez, Skuhravá & Skuhravý (2012a), Simova-Tošić & Skuhravá (2001a), Simova-Tošić, Skuhravá & Skuhravý (1996a, 2000a, 2004a, 2007a), Simova-Tošić, Skuhravá, Skuhravý & Postolovski (2007a), Skuhravá & Skuhravý (1994a, 1997a, 1999a,b, 2008a, 2011a, 2012a, 2021a: 137), Skuhravá, Skuhravý, Blasco-Zumeta & Pujade-Villar (2006a), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý, Dončev & Dimitrova (1991a, 1992a), Skuhravá, Skuhravý & Massa (2007a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý & Neacsu (1972a), Skuhravá, Skuhravý, Skrzypczyńska & Szadziewski (2008a), Stănescu (2009a), Tavares (1905a), Tomasi (2003a).