Gosh ya'll...we get Pipevine Swallowtails all year around - plenty of love in the air - so much that I don't even bother taking photos anymore :o)
For everyone reading this posting - please provide the common and scientific name of the larval host plant you have seen Pipevine Swallowtails use or that you have raised them on without any ill effect.
They will not use aristlochia elegans out here.