Amblypsilopus pilosus ( Negrobov, 1979 )

Grichanov, Igor Ya., 2022, New records of Dolichopodidae (Diptera) from Primorsky Territory, Russia, Amurian Zoological Journal XIV (1), pp. 48-60 : 49

Amblypsilopus pilosus ( Negrobov, 1979) Mesorhaga pilosa Negrobov 1979: 188 .

Mesorhaga janata Negrobov 1984: 32, syn. nov. Type locality: Japan, Ofune .

Amblypsilopus janatus : Bickel 1994: 373.

Material examined. 3♂, 3♀, Primorye , Khasansky Distr. , Ryazanovka, 12, 14.08.1987, V. N. Makarkin ( FCBV) .

Distribution. Type locality: Russia, Primorye, Komarovka. Palaearctic: Japan, Russia (Primorye).

Notes. Negrobov (1984) distiguished Amblypsilopus janatus (males described from Japan) from A. pilosus (males and females described from Primorye) by right vs. acute angle between M 1+2 and M 1. Descriptions of the two species including male genitalia figured have no significant differences. The material examined has right angle between M 1+2 and M 1 in males and acute angle in females. It is worth noting that the line drawing of A. pilosus is inaccurate ( Negrobov 1979). The wing of all Primorian male specimens examined is identical to wing pictured for A. janatus . Therefore, the two names are considered here as synonyms. The species seems not uncommon in both Primorye and Japan ( Grichanov 2020; Grichanov, Selivanova 2021; Negrobov 1979; 1984).