Chlosyne janais, the crimson patch or janais patch, is a common New Worldbutterfly found from Colombia north through Central America and Mexico to southern Texas, with occasional sightings in southeastern Mexico and northern Texas. The dorsal and ventral wing surface is black with several undulating rows of small white spots on the medial forewings and along all outer wing margins. On each dorsal hindwing is a medial orange-red patch situated anteriorly. The ventral hindwings have a fragmented yellow proximal patch bordered by a thick postmedial band of red that does not reach the wing margins; maximum wingspan is 4.8–6.7 cm.
Imago at Campeche, MexicoWing undersides, Costa Rica
Adults inhabit the periphery of lowland tropical to subtropical forests, fields, and along streams, where they feed on flower nectar. Reproduction is continuous in the tropics, whereas in temperate areas several broods are produced from July to November. The caterpillars are grey white to green with several transverse rows of fleshly black spines; they feed primarily on acanthus shrubs, especially Anisacanthus wrightii and Odontonema callistachus (in Texas), upon which adult females lay their eggs.
The crimson patch can reach high numbers in the Rio Grande Valley, but the population is periodically killed off by cold snaps; the area is then recolonized by members of the Mexican population. A very similar species is the rosita patch (C. rosita), which is distinguished from the crimson patch by the former's lack of spots on the wing margins.
Referencesedit
USGS. Butterflies of North America—Chlosyne janais. Retrieved September 27, 2005 from
eNature.com. FieldGuides: Crimson Patch. Retrieved September 27, 2005 from
March 19, 2024
chlosyne, janais, crimson, patch, janais, patch, common, world, butterfly, found, from, colombia, north, through, central, america, mexico, southern, texas, with, occasional, sightings, southeastern, mexico, northern, texas, dorsal, ventral, wing, surface, bla. Chlosyne janais the crimson patch or janais patch is a common New World butterfly found from Colombia north through Central America and Mexico to southern Texas with occasional sightings in southeastern Mexico and northern Texas The dorsal and ventral wing surface is black with several undulating rows of small white spots on the medial forewings and along all outer wing margins On each dorsal hindwing is a medial orange red patch situated anteriorly The ventral hindwings have a fragmented yellow proximal patch bordered by a thick postmedial band of red that does not reach the wing margins maximum wingspan is 4 8 6 7 cm Crimson patchimago and caterpillarScientific classificationDomain EukaryotaKingdom AnimaliaPhylum ArthropodaClass InsectaOrder LepidopteraFamily NymphalidaeGenus ChlosyneSpecies C janaisBinomial nameChlosyne janaisDrury 1782 Imago at Campeche MexicoWing undersides Costa RicaAdults inhabit the periphery of lowland tropical to subtropical forests fields and along streams where they feed on flower nectar Reproduction is continuous in the tropics whereas in temperate areas several broods are produced from July to November The caterpillars are grey white to green with several transverse rows of fleshly black spines they feed primarily on acanthus shrubs especially Anisacanthus wrightii and Odontonema callistachus in Texas upon which adult females lay their eggs The crimson patch can reach high numbers in the Rio Grande Valley but the population is periodically killed off by cold snaps the area is then recolonized by members of the Mexican population A very similar species is the rosita patch C rosita which is distinguished from the crimson patch by the former s lack of spots on the wing margins References editUSGS Butterflies of North America Chlosyne janais Retrieved September 27 2005 from https web archive org web 20051102063936 http www npwrc usgs gov resource distr lepid bflyusa usa 157 htm eNature com FieldGuides Crimson Patch Retrieved September 27 2005 from https web archive org web 20070929083020 http www enature com fieldguides detail asp allSpecies y amp searchText Janais 20Patch amp curGroupID 2 amp lgfromWhere amp curPageNum 1 Retrieved from https en wikipedia org w index php title Chlosyne janais amp oldid 1124962831, wikipedia, wiki, book, books, library,
