I am not sure as I am not the specialist about it  but I think it is Peacock Pansy (Junonia almana)

I could not tell by sure, but it is of course a Junonia species:

http://thedailybubbletea.com/taiwans-butterflies/nymphalidae/

http://en.wikipedia.org/wiki/List_of_butterflies_of_Taiwan#Subfamily_Nymphalinae

It is Junonia almana.

Yes, Junonia sp. thats as much I can offer

I am agree with everybody. Peacock Pansies are butterflies that inhabit in Asia, nevertheless they have been seen in other continents as well. If you are still in doubt, next time you spot one, try to look it underneath. If it looks like a dry leaf, it is certainly a Junonia almana.

Here is a site where you can see more images including its larvae stage and its most recurrent host plant.

http://www.ifoundbutterflies.org/161-Junonia/Junonia-almana

http://www.ifoundbutterflies.org/161-Junonia/Junonia-almana

Yes, this species is Junonia almana (Linnaeus, 1758)

Same as several have said: it is Junonia almana

Junonia almana (Nymphalidae)

Common name; Peacock Pansy

Scientific name : Junonia almana

I would recommend to look at

https://species.wikimedia.org/wiki/Junonia_almana

where you will get more information, also on other species and genera.

Yes, Precis almana almana Linné can be confirmed...

Interesting

Yes, this species is Junonia almana (Linnaeus, 1758)