Key to species of the Philaethria dido complex

1. VHW inner postdiscal band black ................................................................................................................................ 2

- VHW inner postdiscal band brown............................................................................................................................... 4

2. VHW submarginal cellular spots well developed......................................................................................................... 3

- VHW submarginal cellular spots diffuse and continuous............................................................................................. 5

3. VHW medial postdiscal band red; VHW submarginal band red without white; VHW discal area with silver reflec- tion (Figs.2–5) .......................................................................................................................................................... dido

- VHW medial postdiscal band orange; FW postmedial area very reduced; FW medial cell bar orange (Figs. 8–9); Chocó. W. Colombia ................................................................................................................................... constantinoi

4. VHW inner submarginal band black; outer submarginal band brown; postcellular spots small; VFW anal cell bar brown (Fig. 7); Mexico to Panama .................................................................................................................. diatonica

- VHW inner postdiscal band terra-cotte ........................................................................................................................ 6

5. VHW medial postdiscal band white as wide as the inner postdiscal band (Fig. 10); Rio de Janeiro, Brazil ................. ........................................................................................................................................................................ wernickei

- VHW medial postdiscal band white very narrow (Fig. 11–12) ..................................................................... pygmalion

6. VHW medial postdiscal band white; HW postcellular spots very large; FW postmedial green area large, forewing leght very large; Santa Marta, Rancho Grande, C. Merida (Figs.13–17) ............................................................ neildi

- VHW medial postdiscal band gray; Montane, E. Andes; Venezuela to Bolivia ...................................................... 7

7. VHW outer submarginal band black; inner postdiscal band brown (Fig. 22,23) ................................................. ostara

- VHW outer submarginal band brown; inner postdiscal band black (Fig.18) ....................................................... andrei

8. VHW cellular spots very large...................................................................................................................................... 9

- VHW inner and outer submarginal bands brown; marginal cellular spot brown; (Figs.26–27).......................... browni

9. VHW inner postdiscal band brown very narrow; DHW with row of 8 marginal green spots on dorsum, FW postme- dial green area large (Fig. 28) ............................................................................................................................ romeroi