Labarrus, : Adam, 1994

Gordon, Robert D., Bordat, Patrice, Dellacasa, Giovanni & Dellacasa, Marco, 2008, Dung beetles (Coleoptera: Scarabaeidae: Aphodiinae) of the Mpala Research Centre and environs, Laikipia District, Kenya, Insecta Mundi 2008 (28), pp. 1-15 : 6

Key to Laikipia species of Labarrus

1. Male head with median tubercle small, indistinct, head flat in both sexes; elytral intervals densely, rather coarsely punctured ............................................................... L meruensis (Petrovitz)

— Male head with median tubercle large, distinct, head convex in both sexes; elytral intervals not noticeably punctate, or with punctures indistinct ................................................................... 2

2(1). Hind tibia with superior apical spur widened at middle, distinctly longer than first tarsal segment; middle tibia with male inferior apical spur feebly broadened and obliquely truncate apically in both sexes ................................................................................................. L. lividus (Olivier)

— Hind tibia with superior apical spur evenly acuminate from base to apex, widest at base, approximately as long as first tarsal segment or slightly longer; middle tibia with inferior apical spur evenly widened, acuminate apically in both sexes ................................................... ................................................................................................. L. pseudolividus (Balthasar)