Celticecis caucasicae Gagné, 2013
Large green, later yellow smooth blisters at the underside of the leaf. They correspond with snow-white hairy depressions at the upperside, in which 1-10 cylindrical galls are standing that are open at the tip and containing an orange solitary larva.
Celtis australis subsp. caucasica.
distribution within Europe
Gagné & Doğanlar (2013a).