Cecidostiba semifascia (Walker, 1835)

Global distribution. Western Palaearctic and Japan (UCD community 2025).

Distribution in Algeria and North Africa. Recorded in Algeria by Marchal (1900) ex Biorhiza pallida (Olivier, 1791) (S) under the name Pteromalus gallicus Ratzeburg, 1848 .

Material examined. Djebel El-Ghorra, Q. faginea, ex Andricus pictus (Hartig, 1856) (A), 19.iii.2023: 1♀; Bouzizi, Q. faginea, ex Andricus hispanicus (Hartig, 1856) (A), 02.v.2023: 1♀; Gliaa, Q. faginea, ex Andricus hispanicus (Hartig, 1856) (A), 05.v.2023: 1♀.