Diplazon urupensis Uchida

Klopfstein, Seraina, 2014, Review of the Diplazontinae (Hymenoptera, Ichneumonidae) of the Kuril islands, with descriptions of two new species, Zootaxa 3779 (1) : -

Diplazon urupensis Uchida (stat. rev.)

Russia, Kuril islands: Paramushir Island, Inland from Severo-Kurilsk; N50°40.71' / E156°05.31', 0 5. VIII. 1997, leg. B.K. Urbain. 1♀. Shiashkotan, inland SW Zakatnaya Bay; N48°46.83' / E154°01.85', 29. VII. 2000, leg. T.R. Anderson. 1♀. Simushir Island, inland of NE Broutona Bay; N47°07.20' / E152°16.02', 0 2. VIII. 2000, leg. D.J. Bennett. 5♀.

This species was described from the Kuril islands by Uchida (1935). In a later publication ( Uchida, 1957), he then synonymized it with D. pectoratorius . However, after studying the present specimens and consulting Uchida's holotype and allotype of the species (deposited at the Hokkaido University, Sapporo; label data of the holotype: "Uruppu; K.Doi" / " Holotype; Diplazon ; urupensis ; (Uch.)"), I decided to reinstate D. urupensis as a valid species (stat. rev.). The specimens are clearly smaller and more slender than D. pectoratorius , lack the orange coloration of the mesopleuron and mesosternum (except for a few males), and have weaker and sparser punctures on the mesoscutum and mesopleuron. It remains to be shown whether the Nearctic D. albotibialis Dasch (1964a) , which has also been reported from Eastern and Western Russia (Manukyan, 1987, 2007), is a distinct species or a junior synonym of D. urupensis .

Known only from the Kuril islands.