Description published
Nylander, Notiser ur Sällskapets pro Fauna et Flora Fennica Förhandlingar, vol. 1, p. 270.
Location of type
Type material: Lectotype f, by designation of Tkalcu (1995: 121), “Helsingfors” [Finland], FMNH (Helsinki); paralectotype m. Type species of Formicapis Sladen.-Combination Chelostoma robustum (Nylander) in Smith (1854: 220). Combination Osmia robusta (Nylander) in Schletterer (1889: 988). Combination Formicapis robusta (Nylander) in Romankova (1985a: 66).