Anapleus Horn, 1873: 311 [type species: Bacanius marginatus J. L. LeConte, 1853: 292. Designated by monotypy]; Bickhardt, 1913: 175; 1916-17: 63, 73; Reichardt, 1941: 84, 126; Arnett, 1962: 375, 380; Kryzhanovskij and Reichardt, 1976: 260; Mazur, 1984: 116.
Sphaeroderma J. L. LeConte, 1861: 76, nec Stephens, 1831: 328, synonymized by Mazur, 1984: 116 [type species: Bacanius narginatus J. L. LeConte, 1853: 292].
Abraeodes Reitter, 1886: 272 by Bickhardt, 1913: 175 [type species: Abraeus raddei Reitter, 1877: 292]; Jakobson, 1911: 642, 653.
Tadzhister Kryzhanovskij, 1966: 55, synonymized by Kryzhanovskij and Reichardt, 1976: 260 [type species: Tadzhister gracilipes Kryzhanovskij, 1966: 55].
Diagnosis. Body small, about 2.5 mm long; oval, convex, usually dark brown or black; tibiae, tarsi, antennae and mouthparts rufopiceous. Frontal stria of head absent; surface obliquely convex in front of eyes and feebly depressed on longitudinal median line. Labrum transverse, with a pair (or more) of setiferous punctures. Mandible short and stout. Antennae long; scape oblong and stout; pedicel somewhat long and stout; club consisting of apical 3 flagella, of which sutures are distinct. Pronotum transverse, its sides usually strongly convergent to apices; lateral and anterior margin narrowly marginate; apical angles acute and strongly depressed. Elytra usually coarsely punctate, sometimes strigate apically; dorsal stria absent; apex of elytra truncate. Propygidium transverse and nearly vertical. Pygidium curved downwards. Prosternal lobe quadrate and broad; suture between lobe and process indistinct; antennal cavity longitudinal, deep and situated along prosternal lobe and process; carinal striae deeply impressed. Mesosternum short and transverse. Meso-metasternal suture distinct and crenate. Metasternum coarsely and densely punctate. Protibia narrow, dilated medially, without large denticles, usually dentate-serrate with very small denticles. Meso- and metatibiae narrow and long.