Eastern Tiger Swallowtail, Black Form Photograph by Darrell Gulin
Dark Form Eastern Tiger Swallowtail. Eastern tiger swallowtails are diurnal, and are usually solitary. The innermost band lines up with the median band of the hind wing.
Eastern Tiger Swallowtail, Black Form Photograph by Darrell Gulin
The black form is called dimorphic coloration, which adds a level of protection by mimicking the distasteful pipevine swallowtail. Adults are yellow with four black bands on the front wings ( figures 3 and 4 ). Adults are known to fly high above the ground, usually seen above the tree canopy. The innermost band lines up with the median band of the hind wing. It may also be confused with the spicebush swallowtail and black swallowtail, but both these species have two rows of orange. Thanks for sending our readership such a nice comparison of the dark female tiger swallowtail and a female black swallowtail. The eastern, western, appalachian, and canadian tiger swallowtails. Web a dark form looks similar to a pipevine swallowtail. Happy thanksgiving doris, the butterfly in question is a dark form of the female tiger swallowtail. That’s one in the photo above.
The further south the more frequent. Some female tiger swallowtails are all black with darker black stripes and extra blue markings on their lower. The eastern tiger swallowtail is a large species with a wingspread range of 7.9 to 14.0 cm (approx. Web if you see a black butterfly flitting around a tulip, magnolia, wild cherry, or willow tree, chances are, it’s a dark form tiger swallowtail. Hindwing with blue scaling in black border; Eastern tiger swallowtails are diurnal, and are usually solitary. Web dark form black or with faint stripes; The black form of the eastern tiger swallow tail may be an example of deceptive coloration using mimicry. Similar to the western tiger swallowtail. Web the dark female of this species would most likely be confused with the pipevine swallowtail, which also has only a single row of spots below but has very distinctive iridescent blue coloration on the hind wings; Abdomen with black lateral stripe female:
