[1]
B. Rossaro and C. Casalegno, “Description of the pupal exuviae of some species belonging to Orthocladius s. str. van der Wulp, 1874 (Diptera: Chironomidae: Orthocladiinae), with a new key to species of West Palaearctic region”, Zootaxa, vol. 7, no. 1, pp. 1–20, Aug. 2001.