Variation
See dedicated page: Variation
Adults are sexually dimorphic.[1]
The shape and color of the wings change at the beginning of the migration and appear redder and more elongated than later migrants.[2] Wings size and shape differ between migratory and non-migratory monarchs. Monarchs from eastern North America have larger and more angular forewings than those in the western population.[3]
Sexual dimorphism of monarchs | |||||||
---|---|---|---|---|---|---|---|
Female | Male | Description | |||||
![]() Adult female. |
![]() Adult male. |
Males are slightly larger than females[3][4] and have a black patch or spot of androconial scales on each hindwing. The male's black wing veins are lighter and narrower than those of females.[1] | |||||
Varieties of monarchs | |||||||
---|---|---|---|---|---|---|---|
Caterpillar | Chrysalis | Adult | Description | ||||
![]() D. p. plexippus caterpillar. |
![]() D. p. plexippus chrysalis. |
![]() D. p. plexippus adult. |
Short paragraph or so of descriptive text. | ||||
![]() D. p. plexippus form nivosus, or the white monarch. Caterpillar pictured. |
![]() D. p. plexippus form nivosus chrysalis. |
![]() D. p. plexippus form nivosus adult. |
Known informally as the "white monarch", but called nivosus by lepidopterists. It is grayish white in all areas of its wings that are normally orange and is only about 1% or less of all monarchs, but populations as high as 10% exist on Oahu in Hawaii. Also observed in Australia, New Zealand, Indonesia and the United States.[5] | ||||
![]() D. p. nigrippus caterpillar. |
![]() D. p. nigrippus chrysalis. |
![]() D. p. nigrippus adult. |
Short paragraph or so of descriptive text. | ||||
![]() D. p. megalippe caterpillar. |
![]() D. p. megalippe chrysalis. |
![]() D. p. megalippe adult. |
Short paragraph or so of descriptive text. | ||||
![]() D. p. leucogyne caterpillar. |
![]() D. p. leucogyne chrysalis. |
![]() D. p. leucogyne adult. |
Short paragraph or so of descriptive text. | ||||
![]() D. p. portoricensis caterpillar. |
![]() D. p. portoricensis chrysalis. |
![]() D. p. portoricensis adult. |
Short paragraph or so of descriptive text. | ||||
![]() D. p. tobagi caterpillar. |
![]() D. p. tobagi chrysalis. |
![]() D. p. tobagi adult. |
Short paragraph or so of descriptive text. | ||||
- 1 2 "Monarch, Danaus plexippus". Archived from the original on 15 December 2012. https://archive.today/20121215095741/http://www.dbc.uci.edu/~pjbryant/biodiv/lepidopt/danaidae/monarchm.htm. Retrieved 27 August 2008.
- ↑ Satterfield, Dara A.; Davis, Andrew K. (April 2014). "Variation in wing characteristics of monarch butterflies during migration: Earlier migrants have redder and more elongated wings". Animal Migration 2 (1). doi:10.2478/ami-2014-0001.
- 1 2 "Petition to protect the Monarch butterfly (Danaus plexippus plexippus) under the endangered species act". Xerces Society. http://www.biologicaldiversity.org/species/invertebrates/pdfs/Monarch_ESA_Petition.pdf. Retrieved 1 September 2014.
- ↑
- ↑ Gibbs, Lawrence; Taylor, O.R. (1998). "The White Monarch". Department of Entomology University of Kansas. http://monarchwatch.org/read/articles/nivosus.htm. Retrieved 17 July 2014.