14 September 1991.
Mongolia
Locality: Che Yan Sunn, ~22kl W of Hohhot and ~6kl S of Hu Bao.
Coordinates: 40.6667, 111.2500
(Map it)
Elevation: 868m.
Environment description: Farmland, along planted fields. Moderate vegetation, 20% ground cover. Fairly flat inter-mountain area. Sandy loam, few stones, good drainage.