Corylus avellana, Poland, Bialowieza, ix.2016 © Sébastien Carbonnelle

gall

The leaf underside with a shallow, circular depression of c. 5 mm across. In the centre lies a single hyaline larva. At the upperside the leaf is weakly raised, and the gall is encircled by a yellow zone. Often several galls in a leaf. Univoltine, hibernation in the ground.

hostplants

Betulaceae, monophagous

Corylus avellana, maxima.

larva

prosternum with spatula (from Möhn, 1955a)

synonyms

Oligotrophus tympanifex Kieffer 1909. The spelling Mikomyia coryli is incorrect.

references

Barnes (1951a), Bruun (2015a), Buhr (1964b), Cilbircioğlu & Ünal (2009a), Dauphin & Aniotsbehere (1997a), Gagné (2010a), Houard (1908a), Kieffer (1901c, 1909a), Lambinon, Schneider & Feitz (2001b), Möhn (1955), Redfern & Shirley (2011a), Roskam (2009a, 2019a), Roskam & Carbonnelle (2015a), Schneider (2016a), Simova-Tošić & Skuhravá (2001a), Simova-Tošić, Skuhravá & Skuhravý (1996a, 2000a, 2004a, 2007a), Simova-Tošić, Skuhravá, Skuhravý & Postolovski (2007a), Skuhravá (1989a), Skuhravá, Bayram, Çam ao (2005a), Skuhravá & Skuhravý (1988a, 1994a,b, 1997a, 1999a,b, 2005c, 2007a, 2009a, 2010a,b), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý, Dončev & Dimitrova (1991a, 1992a), Skuhravá, Skuhravý & Jørgensen (2006a), Skuhravá, Skuhravý & Massa (2007a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý & Neacsu (1972a), Skuhravá, Skuhravý, Skrzypczyńska & Szadziewski (2008a), Sylvén (1960a, 1983a), Tomasi (2014a), Unal & Akkuzu (2009a).