Biology:Protographium marcellus

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Short description: Species of butterfly


Zebra swallowtail
Zebra Swallowtail, Megan McCarty69.jpg
Spring form

Secure (NatureServe)[1]
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Papilionidae
Genus: Protographium
Subgenus: Neographium
Species:
P. marcellus
Binomial name
Protographium marcellus
(Cramer, 1777)
Eurytides marcellus range map.PNG
Synonyms
  • Papilio ajax (Linnaeus)

Protographium marcellus, the zebra swallowtail, (formerly listed under genera Eurytides, Iphiclides, Graphium and Papilio by some authorities) is a swallowtail butterfly native to the eastern United States and southeast Canada . It is the state butterfly of Tennessee . Its distinctive wing shape and long tails make it easy to identify, and its black-and-white-striped pattern is reminiscent of a zebra.[2][3] The butterflies are closely associated with pawpaws, and are rarely found far from these trees. The green or black caterpillars feed on the leaves of various pawpaw species, while the adults feed on flower nectar and minerals from damp soil.

Description

Summer form

The zebra swallowtail has a wingspan of 6.4 to 10.4 cm (2.5 to 4.1 in).[4] The triangular wings are white to greenish white with black longitudinal stripes. A pair of swordlike tails extend from the hindwings.[3] The inner margin of the hindwing has two blue spots on the corner and a red spot near the body.[3] A red stripe runs along the middle of the ventral hindwing. P. marcellus has two seasonal forms, one occurring in the spring and the other in the summer. Spring forms are smaller, more white, and have short, black tails with white tips. Summer forms are larger, have broader black stripes, and longer, black tails with white edges.[2][5]

Flight period

The zebra swallowtail can be seen from late March to August in the northern portion of its range and from February to December in the southern portion. It has two broods in the north and three to four in the south,[6] with the first brood being the most numerous.[3]

Behavior

Males will patrol near host plants in search of females, flying swiftly and directly.[7] They usually fly 0.5 to 1.8 meters (2 to 6 ft) above the ground. Females will fly slowly when searching for suitable host plants.[6][8] Both males and females avidly visit flowers, including species from the families Apocynaceae, Brassicaceae, Fabaceae, Lythraceae, Polemoniaceae, and Rosaceae. Males participate in a behavior known as puddling, in which individuals congregate on sand, gravel, or moist soil to obtain salts and amino acids.[8] These nutrients aid the male in reproduction.[9] Other food sources include rotting fruit and urine.[6][8]

Life cycle

Since the caterpillars are cannibalistic, females lay their eggs singly on pawpaw leaves or on the tree trunks. The round egg is pale green, later turning orange brown. Young caterpillars are black with lighter colored transverse stripes. Older larvae have two color forms. The more common form is green with yellow and white transverse stripes; the rarer form is black and banded with white and orange. In both forms, between the swollen thorax and the abdomen, there is a yellow, black, and bluish-white band.[7][10] The larva has a yellow, foul-smelling, forked gland called an osmeterium which it will use to deter predators, especially spiders and ants.[6] The chrysalis is either green or brown, and is more compact compared to chrysalids in the genus Papilio. Three small horns project from the head and thorax. The chrysalis hibernates in areas of its range with cold winters.[7]

Life cycle

  • Female P. marcellus laying an egg on common pawpaw

  • An egg on a host plant leaf. On the left, the egg is one day old; on the right, it is three days old.

  • A green form larva

  • A black form larva

  • Lateral side of a chrysalis

Host plants

A. triloba, a host plant of the zebra swallowtail

The zebra swallowtail caterpillar feeds on species within the genus Asimina and was found to accept, oviposit and grow on leaves of the tropical soursop- Annona muricata in 1998. Commonly used species include Asimina angustifolia (slimleaf pawpaw), A. incana (woolly pawpaw), A. parviflora (smallflower pawpaw), A. reticulata (netted pawpaw), A. tetramera (four-petal pawpaw), and A. triloba (common pawpaw).[6][11][12] P. marcellus caterpillars ingest neurotoxic chemicals called annonaceous acetogenins from their host plants, which are retained in the body tissues of both the caterpillar and the adult, and may help chemically protect the butterfly from birds.[6]

References

  1. ↑ "NatureServe Explorer 2.0 Eurytides marcellus Zebra Swallowtail". https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.112289/Eurytides_marcellus. 
  2. ↑ 2.0 2.1 Brock, Jim P.; Kaufman, Kenn (2003). Butterflies of North America. New York City, NY: Houghton Mifflin Company. p. 24. ISBN 0-618-15312-8. https://archive.org/details/butterfliesofnor00broc. 
  3. ↑ 3.0 3.1 3.2 3.3 Pyle, Robert Michael (1981). National Audubon Society Field Guide to North American Butterflies. NY: Alfred A. Knopf. pp. 347–348. ISBN 0-394-51914-0. https://archive.org/details/audubonsocietyfi00robe/page/347. 
  4. ↑ Opler, Paul A.. "Zebra Swallowtail Eurytides marcellus". Butterflies and Moths of North America. Big Sky Institute at Montana State University. http://www.butterfliesandmoths.org/species/Eurytides-marcellus. 
  5. ↑ Shull, Ernest M (1987). The Butterflies of Indiana. IN: Indiana Academy of Science. p. 81. ISBN 0-253-31292-2. 
  6. ↑ 6.0 6.1 6.2 6.3 6.4 6.5 Cech, Rick; Tudor, Guy (2005). Butterflies of the East Coast. Princeton, NJ: Princeton University Press. p. 61. ISBN 0-691-09055-6. 
  7. ↑ 7.0 7.1 7.2 Scott, James A. (1986). The Butterflies of North America. Stanford, CA: Stanford University Press. pp. 162–163. ISBN 0-8047-2013-4. https://archive.org/details/butterfliesofnor00jame. 
  8. ↑ 8.0 8.1 8.2 Iftner, David C.; Shuey, John A.; Calhoun, John V. (1992). Butterflies and Skippers of Ohio. OH: College of Biological Sciences and The Ohio State University. p. 67. ISBN 0-86727-107-8. 
  9. ↑ Medley, Scott R.; Eisner, Thomas (January 1996). "Sodium:A male moth's gift to its offspring". Proceedings of the National Academy of Sciences 93 (2): 809–813. doi:10.1073/pnas.93.2.809. PMID 11607627. PMC 40138. Bibcode: 1996PNAS...93..809S. http://www.pnas.org/content/93/2/809.full.pdf. 
  10. ↑ Wagner, David L. (2005). Caterpillars of Eastern North America. Princeton, NJ: Princeton University Press. p. 82. ISBN 0-691-12144-3. https://archive.org/details/caterpillarseast00wagn. 
  11. ↑ Glassberg, Jeffrey (1999). Butterflies through Binoculars: The East. New York City, NY: Oxford University Press. p. 44. ISBN 0-19-510668-7. 
  12. ↑ Hall, Donald W.; Butler, Jerry F. (September 1998). "Zebra swallowtail". Featured Creatures. http://entomology.ifas.ufl.edu/creatures/bfly/zebra_swallowtail.htm. 

Further reading

  • Edwin Möhn, 2002 Schmetterlinge der Erde, Butterflies of the world Part XIIII (14), Papilionidae VIII: Baronia, Euryades, Protographium, Neographium, Eurytides. Edited by Erich Bauer and Thomas Frankenbach Keltern: Goecke & Evers; Canterbury: Hillside Books. ISBN:978-3-931374-87-7 All species and subspecies are included, also most of the forms. Several females are shown the first time in colour.

External links

Wikidata ☰ Q3016214 entry




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