Förster, 1869 : 195 Exenterus pygmaeus Holmgren. Subsequent Acrotomus xanthopus Holmgren Review of the genus Eridolius Förster from the Oriental Region (Hymenoptera, Ichneumonidae, Tryphoninae) Reshchikov, Alexey Zootaxa 2018 2018-02-02 4377 3 431 443 633LH 273969 Forster, 1869 Forster 1869 [151,434,437,463] Insecta Ichneumonidae Eridolius GBIF Animalia Hymenoptera 1 432 Arthropoda genus     Eridolius  Förster, 1869: 195. Type species:  Exenterus pygmaeusHolmgren. Subsequentdesignation from inclusion by Thomson, 1883.  Anisoctenion Förster, 1869: 194. Type species:  Acrotomus xanthopusHolmgren= alacerGravenhorst. Subsequent designation from inclusion by Schmiedeknecht, 1907. (Synonymized by Townes 1969).   Diagnosis.  Eridoliusis distinguished from all other genera of the Exenteriniby the following characters: apical edge of clypeus rounded laterally, truncate or slightly convex medially, not strongly projecting ventrally and squarely truncate so that clypeus is almost pentagonal; subtegular ridge simple, not modified as a vertical lamella that extends close to tegula when tegula closed, without a longitudinal slot in posterior 0.4; hind tibia without a spur-like tooth on anterior side of apex and without a flat, polished area on the apical surface between the tarsal socket and the fringe of setae on the inner edge; T1 with anterolateral angulate projections absent or weak.