arida Fjellberg, 1991: 205. Willemia.

The original description noted deposition of type material in the CNC, but this material cannot be located. Data for the holotype are as follows: 1 female (slide) Canada. Alberta, Cypress Hills, Reezor Lake, 3.vi.1983, Festuca -meadow on top of plateau, A. Fjellberg. There are 4 non-type specimens (slide) in the CNC that were listed in the original description from Canada, Alberta: Kananaskis, Fisher Peak, 2460 m, meadow, 26.vi.1983, A. Fjellberg (CNC 330945); and 4 non-type specimens (slide) from U.S.A., Alaska, Toolik Lake, [dry, stony, moraine, Dryas, Potentilla, Carex, Salix, Betula nana], 19.viii.1976, 43, A. Fjellberg (CNC 330946). All of these specimens were listed in the original description as “Additional material”.