Lithobius (Sigibius) Chamberlin, 1913

Sigibius Chamberlin, 1913: 101

Lithobius (Sigibius): Eason, 1983: 140

Diagnosis: Body length 7–10 mm. Antenna with 25 or more articles. Ocelli 3–7, arranged in either one or two irregular rows. Forcipular coxosternal teeth 2+2; porodonts setiform, rarely short and stout. Tergites without posterior triangular projections. Tarsal articulation of legs 1–13 indistinct. Coxal pores arranged in one row.

Type species: Lithobius (Sigibius) puritanus (Chamberlin, 1913)

Remarks: Eason (1983: 140) suggested that these Lithobius species with antennal articles well in excess of 20 should be referred to the subgenus Sigibius, while many authors place those small species of Lithobius from the hemisphere with fused anterior tarsal articulations in the subgenus Monotarsobius Verhoeff, 1905, regardless of the number of their antennal articles.