(Fig. 48 in Strand & Vik 1964)
Homalota rudiventris Eppelsheim, 1886: 35.
Dimetrota (s. str.) revoluta Casey, 1910a: 104, syn. nov.
Datomicra (s. str.) vaciva Casey, 1910a: 126, syn. nov.
Atheta (Dochmonota) rudiventris: Fenyes, 1920: 189 (as valid species).
Atheta (Dimetrota) revoluta: Fenyes, 1920: 205 (as valid species).
Atheta (Datomicra) vaciva: Fenyes, 1920: 220 (as valid species).
Atheta (Dochmonota) rudiventris: Bernhauer & Scheerpeltz, 1926: 637 (as valid species).
Atheta (Dimetrota) revoluta: Bernhauer & Scheerpeltz, 1926: 665 (as valid species).
Atheta (Datomicra) vaciva: Bernhauer & Scheerpeltz, 1926: 669 (as valid species).
Atheta (Dochmonota) rudiventris: Strand & Vik, 1964: 331 (as valid species).
Atheta (Mischgruppe II) rudiventris: Benick & Lohse, 1974: 172 (as valid species).
Atheta (Dimetrota) revoluta: Moore & Legner, 1975: 372 (as valid species).
Atheta (Datomicra) vaciva: Moore & Legner, 1975: 376 (as valid species; misspelled as vacina). Dimetrota revoluta: Seevers, 1978: 260 (as valid species).
Datomicra vaciva: Seevers, 1978: 259 (as valid species).
Dochmonota rudiventris: Muona, 1984: 229 (as valid species).
Dochmonota rudiventris: Lohse, 1989: 208 (as valid species).
(Other (Palaearctic) references are omitted)
Type material. Holotype of Dimetrota revoluta: ♂, “Id.[aho][Coeur d'Alene]”, “ revoluta Csy. ”, “TYPE USNM 39122” (red label), “CASEY bequest 1925” (NMNH).
Lectotype of Datomicra vaciva (here designated): ♂, “Mass.[achusetts] [Blanchard leg.]”, “ vaciva Csy. ”, “TYPE USNM 39173” (red label), “CASEY bequest 1925” (NMNH). Paralectotypes: 2♀♀, “Mass.[achusetts] [Blanchard leg.]”, “ vaciva PARATYPE USNM 39173” (red label), “CASEY bequest 1925” (NMNH).
Additional material. CANADA: Newfoundland: 2♂♂, 4♀♀, W Newfoundland, Deer Lake, 30.v.1951 (Lindroth) (MZHF); Northwest Territories: ♂, Fort Simpson, 10.vi.1972 (A.Smetana); ♂, ditto but Harris River, 15.vi.1972; ♂, 2♀♀, 5 mi. SE Fort Simpson, Hwy. 3, 21.vi.1972 (A.Smetana); ♀, 8 mi. SE Fort Simpson, 18.vi.1972 (A.Smetana) (CNCI); Yukon Territory: ♀, Dempster Hwy. Mi. 152.5, 1900’, 20.vii.1978 (A.Smetana & J.M.Campbell) (CNCI).
Diagnosis. See Benick & Lohse (1974; as Atheta rudiventris). Aedeagus and spermatheca (Fig. 48: Strand & Vik, 1964).
Discussion. The types of Dimetrota revoluta and Datomicra vaciva agree completely with European specimens of Dochmonota rudiventris in external characters, and in the shape of the aedeagus and spermatheca.
Distribution. In North America Dochmonota rudiventris is known from Yukon Territory, Northwest Territories, Newfoundland, Massachusetts and Idaho.