Description of the male of Limnophila (Limnophila) soldatovi Alexander, 1934 (Diptera: Limoniidae) with a key to species of the nomynotypical subgenus from the Russian Far East

An illustrated description of the male imago of Limnophila (Limnophila) soldatovi Alexander, 1934 (Diptera: Limoniidae) is given for the first time, as well as a brief illustrated description of the female imago from the Bolshekhekhtsirskiy Nature Reserve (Khabarovsk Region, Russia). The species was originally described based on three females from the area of the mouth of the Amur River (the Russian Far East), and is clearly distinguished from all Palaearctic species of the genus Limnophila Macquart, 1834 by its dense brown pattern on the wings with four more or less well-defined transverse stripes. The first post-arcular cross band extends in the basal part of the wing; the second band – at the level of the base of Rs to the apex of A2; the third band – along the cord, bifurcating at anterior margin of the wing; the fourth band – along the apex of the wing from R3 to M4. A key to the Far Eastern species of the nominotypical subgenus Limnophila is compiled.