KEY TO COELIDIINI DOHRN, 1859 OF MADAGASCAR

1. Style as long as subgenital plate (Fig. 9C). Aedeagal shaft with only two subapical processes (Fig. 9G, H) ...... ................................................................................................................................ Calodia makayensis n. sp.

— Style short. Aedeagal shaft with more than two processes ............................................................................ 2

2. Frontoclypeus black (Fig. 3D, F). Aedeagal shaft with five spiny processes (from the apex to the basement and from left to right side: 1 + 2 + 2), wherein the upper process is 0.3 times as long as four other processes which are almost equal in length (Fig. 8D, E) ................................................................ Limentinus nigrifacies n. sp.

— Frontoclypeus ochraceous with fuscous spots, dark fuscous to piceous or yellow with two black longitudinal stripes. Aedeagal shaft with number, length and or arrangement of processes different to above .................. 3

3. Aedeagal shaft with three processes .............................................................................................................. 4

— Aedeagal shaft with more than three processes ............................................................................................. 5

4. Apex of aedeagus enlarged (Nielson 1991: figs 2; 3 .................................................. L. sagittus Nielson, 1991

— Apex of aedeagus narrow (Nielson 1982: figs 101; 102 ...................................... L. cambouei (Signoret, 1886)

5. Aedeagal shaft with five processes ................................................................................................................ 6

— Aedeagal shaft with 7–12 processes ............................................................................................................. 7

6. Frontoclypeus dark fuscous to piceous. Aedeagal shaft with 4 + 1 processes (Nielson 1991: figs 5; 6) ............. .............................................................................................................................. L. bracchius Nielson, 1991

— Frontoclypeus light yellow, with two longitudinal black stripes ................................................................... 8

7. Aedeagal shaft with six short and one long (2 + 2 + 2 + 1) processes (Nielson 1991: figs 11; 12) .................... .................................................................................................................................. L. varius Nielson, 1991

— Aedeagal shaft with several long processes .................................................................................................... 9

8. Aedeagal shaft with 2 + 1 + 2 processes (Fig. 6D, E) ................................................................... L. oryx n. sp.

— Aedeagal shaft with 1 + 1 + 2 + 1 processes (Nielson 1982: figs 95; 96) ............ L. aldabranus (Distant, 1917)

9. Aedeagal shaft with 8–9 processes ............................................................................................................. 10

— Aedeagal shaft with 12 (3 + 4 + 1 + 4) processes (Wang et al. 2018: figs 31-33) .............................................. .................................................................................................. L. declinatus Wang, Dietrich & Zhang, 2018

10. Corium of forewing with elongate light brown yellow area along the costal margin almost from the basal cell to outer anteapical cell (Figs 1A, B; 2A, B). Aedeagal shaft with 8 (1 + 2 + 2 + 1 + 2) processes (Fig. 5E, F) ... ................................................................................................................... L. perineti (Evans, 1953) n. comb.

— Corium of forewing with two separated light brown yellow areas – one narrow along the costal margin from the basal cell to apical third of inner anteapical cell and another one, wide, from costal margin throughout outer anteapical cell (Fig. 3A). Aedeagal shaft with 9 (2 + 2 + 3 + 2) processes (Fig. 7 D-F) ............. L. nielsoni n. sp.