The species of the genus Diamesa (Diptera, Chironomidae) known to occur in Italian Alps and Apennines Author Montagna, Matteo Author Urbanelli, Sandra Author Rossaro, Bruno text Zootaxa 2016 4193 2 317 331 journal article 10.11646/zootaxa.4193.2.7 4a1140ea-fe86-4b33-9ee7-2f933c97a856 1175-5326 166939 A1A56E2F-3A9A-4A07-B3BB-EE50B669FB50 Diamesa aberrata Lundbeck, 1898 The most recent illustrations of male genitalia of this species are given in the thesis of Serra-Tosio (1971b) , in Hansen & Cook (1976) and in Makarchenko (1985) . Pagast (1947) described but did not illustrated the species. The species inhabits glacial streams as well as cold springs and streams ( Rossaro & Lencioni 2015a , b ).