The round,green eggs undergo a transformation and eventually change to yellowish green, marked with red dots. It can be very difficult to ID from memory. The Canadian can survive colder winter temperatures than the Eastern. The Adult Eastern lives 6 to 14 days. They are 0.8 mm and 1.2 mm in height and width respectively. Change ). To determine which you have seen, look at the underside of the butterfly’s forewing and see if the yellow band along the margin is solid and continuous (Canadian Tiger Swallowtail, Papilio canadensis), or if it is broken up into spots (Eastern Tiger Swallowtail, Papilio glaucus). Papilio glaucus. Change ), You are commenting using your Twitter account. Appalachian Tiger Swallowtail is a recently described species (see below) that is common in the North Carolina mountains. The two species were once considered the same, but genetic testing done in the early 1990's merited a separation of the two types. The chrysalis may be green or shades of brown. Rightly so I think. As an Amazon Associate, I earn from qualifying purchases. This entry was posted on June 3, 2020 by Mary Holland. Weeds had been rolled onto the sand. It is one of the most familiar butterflies in the eastern United States, where it is common in many different habitats.
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