Rossaro, B. and Casalegno, C. (2001) “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. Auckland, New Zealand, 7(1), pp. 1–20. doi: 10.11646/zootaxa.7.1.1.