Appearance
Forewing on the under surface either without white cell-spot, or the spot small, not extending transversely across the cell. Hindwing posteriorly shorter than in ''chiansiades'', the tail short,narrow: the last submarginal spot more distal than the large spot placed before it. The harpe of the male not dentate.The wingspan is about 80 mm.
The larvae feed on ''Citrus'' and ''Zanthoxylum'' species.
Naming
*''Papilio isidorus isidorus'' The white patch on the under surface of the fm-ewing usually enters the cell and is often also indicated above; the red spots of the hindwing on the whole larger than in red-spotted specimens of ''flavescens'', the two spots placed between the 2. radial and 2. median separated also on the upper surface - forma ''chironis'' R. and J Fore-wing above with 2 white spots between the 2. radial and 2. median and a small cell-spot; the spots beneath much larger, the spot between the 8. radial and 1. median the largest.⤷ ''Papilio isidorus rhodostictus'' Butler & Druce, 1874
⤷ ''Papilio isidorus flavescens'' Oberthür, 1879 The white spots on the underside of the forewing reduced. The spot between the 2. and H. radial of the hindwing usually white above or beneath or on both sides.
⤷ ''Papilio isidorus brises'' Rothschild & Jordan, 1906 Fore- wing above without spots, beneath with 2 or 3 spots, but without cell-spot.
⤷ ''Papilio isidorus nymphius'' Rothschild & Jordan, 1906
⤷ ''Papilio isidorus pacificus'' Rothschild & Jordan, 1906
⤷ ''Papilio isidorus autana''
⤷ ''Papilio isidorus tingo''
References:
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