Quercus cerris, Hungary, Budapest © László Érsek

gall

Leaf gall, sometimes several together. At the upperside the gall is horn-shaped, 3-7 mm high and a mm thick, sometimes set with a few stiff bristles. At the underside the gall has a clear opening, surrounded by a ring on which stiff yellowish, outwards directed hairs keep intruders out. Larva solitary, pale yellowish. Univoltine, pupation in the ground.

hostplants

Fagaceae, narrowly monophagous

Quercus cerris, ithaburensis, trojana.

larva

see Skuhravý & Skuhravá (1971a)

references

Buhr (1965a), Csóka (2012a), Dauphin & Aniotsbehere (1997a), Gagné (2010a), Simova-Tošić, Skuhravá & Skuhravý (1996a, 2000a, 2004a, 2007a), Simova-Tošić, Skuhravá, Skuhravý & Postolovski (2007a), Skuhravá & Skuhravý (1994a, 1999a), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý & Dengler (1997a), Skuhravá, Skuhravý, Dončev & Dimitrova (1991a, 1992a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý & Neacsu (1972a), Skuhravý & Skuhravá (1971a).

23/09/2016