(Figs. 10–12)
Ephydra stenhammari, Zetterstedt, 1846: 1842 [Sweden. Skåne, Mellby, Esperöd]. Scatella stenhammari, Loew, 1860: 40 [generic combination].
Stictoscatella stenhammari, Collin, 1930: 139 [generic combination].
Eustigoptera stenhammari, Cresson, 1930: 128 [generic combination].
Lamproscatella stenhammari, Hendel, 1930: 153 [generic combination]. Limnellia stenhammari, Cresson, 1935: 364 [generic combination].
Ephydra meleagris, Zetterstedt, 1846: 1843 [nomen nudum, published in synonymy]. Ephydra oscitans, Walker, 1849: 1106 [Canada. Ontario: Hudson Bay, Albany River, St. Martin’s Falls]. Scatella oscitans, Osten Sacken, 1878: 204 [generic combination].
Ilythea oscitans, Coquillett, 1900: 260 [generic combination].
Limnellia oscitans, Wirth, 1965: 758 [generic combination].
Diagnosis. Palpi yellow; legs black; wings with five distinct white markings at least in R 1 cell (Fig. 10); halters black. Epandrium slightly longer than wide, rounded dorsally and truncate ventrally in posterior view (Fig. 11); surstyli large, longer than wide; aedeagus with short and thick anterior projection (Fig. 12).
Material studied. 13, China, Beijing, Xiaolongmen, 39 ° 56 'N, 116 °05'E, 7.VII. 2005, Hui Dong leg.
Distribution. China (Beijing); Algeria, Austria, Czech Republic, Estonia, Finland, France, Germany, Great Britain, Hungary, Japan, Netherlands, Norway, Poland, Russia, Spain, Sweden, Canada, Greenland, USA.