Stethophyma grossum (Linnaeus, 1758)

Mecostethus grossus: Miram, 1931: 44; Miram, 1933: 34; Mistshenko, 1971: 581; Matis & Glushkova, 1973: 121; Matis et al., 1977: 134; Matis et al., 1977: 136.

Stethophyma grossum: Ryabukhin & Zasypkina, 2005: 307; Ermakova, 2011: 21; Haberski et al., 2021: 43.

Stethophyma lineatum (partim): Vickery, 1967: 269; Vickery & Kevan, 1983: 1080; Vickery, 1984: 20; Vickery, 1997: 229.

Remarks. A few specimens of this species have been recorded from Yukon, the Northwest Territories and Alaska as S. lineatum Scudder, 1863 (Vickery & Kevan, 1983). Recently the specimens from Alaska were correctly identified as S. grossum (Haberski et al., 2021) . The records of isolated populations of S. lineatum from the extremely North Canada seem to be result of misidentification and belong to S. grossum . In Beringia, this Holarctis species has been recorded from Northeast Yakutia, Magadan region, Alaska, Yukon, and the Northwest Territories. This large and conspicuous grasshopper inhabits wetlands.