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Blue Triangle (Graphium sarpedon)

Blue Triangle

Appearance: Unmistakable. Both upperside and underside dark brown with large, triangular, light blue patch extending across both wings.
Wingspan: 6 cm
Season: 2 or more generations; from spring until autumn in NSW and southern QLD, all around the year in northern QLD.
Range: Eastern Australia; from Cape York Peninsula along eastern QLD and the northern and central coast of NSW. Migrants very rarely reach the ACT.
Habitat: Usually rainforest and monsoon forest in moist lowland areas. Also suburban gardens and parks.
Photo: Lane Cove NP, NSW, 06 / 03 / 2010.


The Blue Triangle is a common and widespread species along the east coast of Australia from the NSW central coast all the way up to Cape York. The butterflies are usually very active and fly very fast without ever resting, making it difficult to observe this species. Occasionally, they feed from flowers or rest to drink water from the ground, often with their wings still vibrating.

Additional Photos

Blue Triangle
View of the underside with the characteristic pale-blue triangle. (Kuala Lumpur Butterfly Park, Malaysia, 18 / 09 / 2012)
Blue Triangle
The butterflies occasionally feed from flowers. (Sydney, NSW, 07 / 03 / 2010)
Blue Triangle
One often doesn't get to see more than just a blue flash of this very active and fast-flying species. (Lane Cove NP, NSW, 06 / 03 / 2010)