Template:Ferrer et Andersson, 2002b
- Ferrer, J. & Andersson, B. 2002. Species of Cynaeus found in Sweden and Finland, with a note on the identity between Cynaeus depressus (Horn, 1870) and Cynaeus opacus (Champion, 1886) syn. conf. Entomofauna: Zeitschrift für Entomologie 23(12): 145–148.