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 Georthocladius ( Georthocladius ) scaturiginis ( Goetghebuer, 1940 ) , comb. nov. ( Figs 7–12 ) Orthocladius scaturiginis Goetghebuer, 1940: 62 . Type material examined. Orthocladius scaturiginis : HOLOTYPE : ♁ stored in isinglass, now mounted on slide, labelled: ‘ Orthocladius scaturiginis n. sp. // type ♁ Goetghebuer // type locality environ d’Abisko en Laponie Suédoise , Thienemann , 1939 // R .I.SC.N.B. 18.073 / Coll. et det. M. Goetghebuer’ . Comments. Orthocladius scaturiginis was listed among nomina dubia in Orthocladiinae by ASHE & O’CONNOR (2012) . The holotype male is not well preserved but can be identified as a Georthocladius because of the presence of acrostichals and pulvilli ( SAETHER & SUBLETTE 1983); only one broken antenna is present. The species is similar to Georthocladius platystylus Saether & Sublette, 1983 .