Papilio iswara iswara

White 1842 - The Great Helen

A huge butterfly, possibly the largest to be found on the Island. However, you will only come across this species deep in forests, and forest clearings, preferably near streams. This is not a common butterfly. I have only ever come across this species at Hin Lad Waterfall, nr. Na Thon and the path up to it.

Flight Period

Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
	x		x	x		x	x	x

Wingspan

130 - 140mm

Early Stages

More detailed life history information is available from the following resource: ButterflyCircle Blog (courtesy of Dr. Horace Tan.)

Larval Foodplant

Maclurodendron porteri (Rutaceae);

Range

A restricted distribution from Southern Burma, through Neomalaya, including Peninsular Thailand.