P. glaucus glaucus Immatures Photos
Photos of eastern tiger swallowtail (Papilio glaucus glaucus) caterpillars taken from live females collected 4 Aug 2007; North of Allegan, Allegan County, Michigan. Caterpillars feed on black cherry (Prunus serotina), willows (Salix spp.) and others.
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Papilio glaucus glaucus 4th instar caterpillar
Note the saddle of earlier instars is beginning to fade.
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Papilio glaucus glaucus 5th instar caterpillar
As is true with other glaucus group swallowtails, eastern tiger swallowtail caterpillars turn dark brown just before purging and seeking a place to form a chrysalis.
