Chequered Swallowtail

Another butterfly that was seen in large numbers at Bladensberg national park near the old homestead on a hedge (not sure exactly what plant species) and a large bougainvillea, was a Chequered Swallowtail.  We have also seen it at other places out Western Queensland so it seems to be a common species out here.

Brisbane Insects is the reference:

http://www.brisbaneinsects.com/brisbane_butters/ChequeredSwallowtail.htm

We have a bougainvillea of the same colour in Chandler but I have not seen it attract this butterfly species