Subgenus Eurypariella
The subgenus Eurypariella Tkalcu is confined to the Palaearctic region. It contains 2 described and 1 to 2 presumably undescribed species (Michener, 2007).
Species accounts
Hoplitis (Eurypariella) denudata (Morawitz, 1880)
1880 Osmia denudata Morawitz, Bulletin de l’Académie Impériale des Sciences de St.-Pétersbourg, 26: 385. Type material: Holotype f, “in der nordwestlichen Mongolei von Potanin” [Mongolia], ZIN (St. Petersburg). Type species of Eurypariella Tkalcu.-Combination Stenosmia denudata (Morawitz) in Zanden (1988b: 128). Combination Eurypariella denudata (Morawitz) in Tkalcu (1995: 111).
Distribution-Northern Asia: MGL, KZ, RC.
Identification-Keys, Descriptions: Tkalcu (1995: 111-114); Wu (2006).
Nesting biology: Unknown.
Flower preferences: Unknown. Several females and males were observed to visit the flowers of Astragalus scabrisetus (Fabaceae) in Kazakhstan (A. Fateryga, personal communication).
Hoplitis (Eurypariella) procerior (Tkalcu, 2000)
2000 Eurypariella procerior Tkalcu, Entomofauna (Ansfelden), 21: 374. Type material: Holotype f, “Gansu, Nanshan-Mountains, north of Datong River, 2550 mNN, 36°56.70’N/102°29.01’E” [China], SMNG (Görlitz).
Distribution-Northern Asia: RC (NW).
Identification-Keys, Descriptions: Wu (2006).
Nesting biology: Unknown.
Flower preferences: Unknown.