Arnoldia Zimbabwe Vol 9(2) 1980 PINHEY E. A review of the Metacnemis group (Odonata : Platycnemididae). p1-13

Mesocnemis Karsch, hitherto distinguished from Metacnemis Selys only on the position of the arculus, sometimes a variable feature, was placed by some authors in synonymy. The two taxa can now be clearly separated on prophallic characters.