Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae) Author Magoga, Giulia ) &) &) Università degli Studi di Milano, Dipartimento di Scienze Agrarie e Ambientali (DISAA), via Celoria 2, I 20133, Milano, Italia; e-mails: giulia. magoga @ unimi. it; matteo. montagna @ unimi. it Author Montagna, Matteo ) &) &) Università degli Studi di Milano, Dipartimento di Scienze Agrarie e Ambientali (DISAA), via Celoria 2, I 20133, Milano, Italia; e-mails: giulia. magoga @ unimi. it; matteo. montagna @ unimi. it Author Marziali, Laura ) &) Water Research Institute, National Research Council (IRSA-CNR), Via del Mulino 19, I 20861 Brugherio (MB), Italy; e-mail: marziali @ irsa. cnr. it Author Rossaro, Bruno ) &) Università degli Studi di Milano, Dipartimento di Scienze per gli Alimenti, la Nutrizione e l’Ambiente (DeFENS), Via Celoria 2, I 20133 Milan, Italy; e-mail: bruno. rossaro @ unimi. it Author Disaa text Acta Entomologica Musei Nationalis Pragae 2017 Acta. Ent. Mus. Natl. Pragae 2017-12-31 57 2 723 749 http://dx.doi.org/10.1515/aemnp-2017-0097 journal article 10.1515/aemnp-2017-0097 0374-1036 5318416 638421F2-985E-43CC-8438-E871F96B1DB8 Orthocladius ( Eudactylocladius ) spitzbergensis ( Kieffer, 1919 ) Dactylocladius spitzbergensis Kieffer, 1919 in KIEFFER & THIENEMANN (1919: 116) . Material examined. 1 ♀ pinned, now mounted on slide, labelled ‘ Dactylocladius spitzbergensis // Greenland East 10.VIII.1926 // R .I.SC.N.B. 18.073 / Coll. et det. M. Goetghebuer’. Comments. ASHE & O’CONNOR (2012) listed Dactylocladius spitzbergensis among nomina dubia probably in Orthocladius ( Eudactylocladius ) . The examined female is from Greenland , not from the type locality (Spitzbergen, Cross Bay, Ebelthof harbour). It is very damaged, including the genitalia, which do not allow an accurate redescription or an evaluation whether Goetghebuer’s determination of this specimen was a correct identification of D. spitzbergensis . Therefore, no change in the generic placement and status is proposed here (see ASHE & O’CONNOR 2012 ).