(Figures 4, 10)
Material examined. Finland 1 Ƥ Åbo?/ Åland? (Ingelius). Al: 531 Ƥ Eckerö (R. Frey, Hellén); 13 Eckerö, 16.VII. 1922 (R. Frey); 131 Ƥ Föglö (Hellén); 13 Geta (Poppius); 231 Ƥ Hammarland (Forsius, Hellén, R. Frey); 131 Ƥ Jomala 29.VI. 1954 (E. Thuneberg); 535 Ƥ Jomala (Hellén, R. Frey); 131 Ƥ Jomala 11.VIII. 1945 (Nordman); 332 Ƥ Kökar (Forsius, Hk. Lindberg); 132 Ƥ Kökar 7.VII. 1922 (R. Frey); 13 Lumparland (Forsius); 13 Mariehamn 1.– 7.VIII. 1945 (A. Nordman); 2 Ƥ Saltvik (R. Frey); 732 Ƥ Sottunga Husö 3. & 7.VII. 1942 (Hk. Lindberg); 631 Ƥ Aland (A. Palmén, E. J. Bonsdorff, Mäklin, Tengström). Ab: 1 Ƥ Houtskär (Hellén); 1 Ƥ Korpo Jurmo 10.VIII. 1960 (M. Meinander); 1 Ƥ Korpo Skalmören 13.VII. 1961 (S. Panelius); 1 Ƥ Nagu Lillandet 10.VII. 1961 (M. Meinander); 631 Ƥ Nagu Lökholm 9.- 10.[VII.] 1961 (M. Meinander); 1 Ƥ Nagu öarna NE om Lökholm 7.VII. 1961 (M. Meinander); 334 Ƥ Nystad (Hellén); 733 Ƥ Parainen (R. Frey). N: 236 Ƥ Borgå (S. Hellén); 631 Ƥ Helsingfors (A. Pippingskjöld); 13 Hangö 22.VI. 1922 (Harald Lindberg); 13 Tvärminne Ören (coll. Nordman). Oa: 23 G. Wasa [Gamla] 1930 (U. Widlund); 13 Vasa (Ingelius). Om: 26325 Ƥ Jakobstad (R. Frey); 23 Jakobstad 18.VII. 1937 & 24.VI. 1959 (R. Storå); 232 Ƥ Jakobstad (Storå); 132 Ƥ Larsmo (Storå); 1 Ƥ Lohtaja 23.VI. 1926 (Krogerus); 4 Ƥ N. Karleby [Nykarleby] (R. Frey); 631 Ƥ Pedersöre 12.VII. 1932 & 14.VII. 1932 (R. Storå); 132 Ƥ Ostrob. m. (J. Sahlberg). Oba: 239 Ƥ Hailuoto (W. Hackman, R. Frey); 131 Ƥ Hailuoto 9.- 12.VII. 1966 (W. Hackman); 6320 Ƥ Karlö (R. Frey, Wuorentaus); 23 Limingo (Tolvanen); 1132 Ƥ Liminka 20.VII. 1929 (R. Tuomikoski); 331 Ƥ Liminka (Tuomikoski); 5 Ƥ Uleåborg (Coll. Nylander); 536 Ƥ Lumijoki Varjakka 72028:34081, 4.VII. 2005 (J. Kahanpää); 13 Liminka, Virkkula 71932:34200, 4.VII. 2005 (J. Kahanpää).
Diagnosis. Rostrum well-developed, slender, tip downturned. Sides of rostrum without conspicuous silver-white hairs. Postpronotum yellow. Subnotopleural stripe considerably widened towards wing base. Fore and mid tibiae yellow or yellow-brown medially. Wing vein R 4 + 5 forked.
3: Frontal vitta very narrow, eyes almost touching. Eyes with large dorsal and small ventral facets. Lower frons with a large white spot which does usually reach the level of antennal bases. T 2 –T 3 white, T 4 –T 5 with black transverse bands. Genitalia: Rozkošný (1973), Rozkošný (1983).
Ƥ: Frons with a pair of large triangular or bar-shaped spots. Tergites black, only lateral margins, posterolateral corners and posteromedial triangles on T 2 –T 5 pale.
Distribution. Palearctic – from Europe to China. Widespread on the Baltic coast of Finland, from Helsinki in the east to Hailuoto island west of Oulu in the north (65 ° N). Most new records are from shores of the Bothnian Bay where suitable habitat is still rather common. In contrast the south-western archipelago (between the city of Turku in Finland and Stockholm in Sweden), which used to be a stronghold for this species, has yielded only a single record in the last decade.
Comments. N. uliginosus is a halobiont like the preceding species. While it is strictly coastal in Finland, it has elsewhere been found in non-marine habitats wherever soil salinity is high enough. Adults are locally common on salt marshes where they visit various low flowers. Larvae have been found in shallow brackish water (Rozkošný 1973), under algal mats covering a dried-up brackish pool (Stubbs & Drake 2001) and under debris on wet grass (Payne 1974). Rozkošný (1973) erroneously recorded N. uliginosus from inland localities in Russian Karelia and the Finnish provinces Sb and Kb. These records are based on misidentifications of N. infortunatus.
The following two Nemotelus species have not been found in Finland, but the northern limit of their occurrence reaches the shores of the Baltic Sea. Both species look superficially like the species described above at least in one sex.