Formica opacus Kupyanskaya, 1980: 106, figs. 21-25 (w.q.m.) RUSSIA. Palearctic.

Primary type information: Primary type material: holotype queen. Primary type locality: Russia: Primorsky krai, Anisimovka, 12.vii.1975 (A.N. Kupyanskaya). Primary type depository: ZMUM. Secondary type information: Secondary type material: 275 paratype workers, 11 paratype queens, 17 paratype males. Secondary type localities: 75 paratype workers, 6 paratype queens with same data as holotype, 200 paratype workers, 5 paratype queens, 17 paratype males Primorsky krai, Benevskoe, villages of Kavalerovo, Tigrovoi, Taezhiny, Novoselishche, verkhove Tigrovogo Kylucha. Secondary type depositories: BPIV, SMNG, ZISP, ZMUM.