Key to the Rotundabaloghia species of Madagascar (females, modified from Kontschán 2010 a)

1. Genital shield ornamented by oval pits........................................... R. (C.) hauseri Kontschán, 2010 a

- Surface of genital shield smooth.......................................................................... 2

2. Sternal setae uniform in length.......................................................................... 3

- St 2 and St 3 longer than other sternal setae.................................................................. 4

3. Anterior margin of genital shield peaked, one pair of setae situated near end of pedofossae IV................................................................................................. R. (C.) benyovszkyi Kontschán, 2007

- Anterior margin of genital shield rounded, three pairs of setae situated near end of pedofossae IV... R. (C.) ermilovi sp. nov.

4. Two pairs of smooth setae situated near end of pedofossae IV................................ R. (C.) kaydani sp. nov.

- One pair of marginally pilose setae situated near end of pedofossae IV.......... R. (C.) madagascarensis Kontschán, 2007