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Colias harfordii

(Harford's Sulphur)

Overview

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Vulnerable

Threat status

Interesting Facts

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Common Names

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Common Names in English:

Harford's Sulphur

Description

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Family Pieridae

'The Pieridae are members of the Superfamily Papilionoidea, the true butterflies. Worldwide in distribution, most species are found in the tropics. Adults have medium to small wings that are white, yellow, or orange, with some black or red, and many have hidden ultraviolet patterns that are used in courtship . Species with more than one generation usually have distinct seasonal variation in appearance . Adults of all species visit flowers for nectar, and adults of both sexes have three pairs of walking legs . Males patrol in search of receptive mates, and females lay columnar eggs on leaves, buds, and stems. The majority of caterpillars of North American whites and sulphurs feed on legumes or crucifers (members of the Mustard family ). Typically, temperate species overwinter in the pupal or larval stage , while tropical species overwinter as adults.

'[1]

Physical Description

Species Colias harfordii

Upper surface of male a rich yellow, wing bases not darkened. Cell spot in front wing is medium-sized and black, often with a white center. Forewing border wide, hindwing border narrower. Cell spot in hindwing not noticeable. Female resembles male but border less well-defined, in some cases reduced or lacking. (ref. 105578)

Color:

Upper surface of male a rich yellow, wing bases not darkened. Cell spot in front wing is medium-sized and black, often with a white center. Forewing border wide, hindwing border narrower. Cell spot in hindwing not noticeable. Female resembles male but border less well-defined, in some cases reduced or lacking.

Size/Age/Growth

Wing span : 1 3/4 - 2 inches (4.4 - 5.1 cm).

Habitat

Open chaparral and woodland clearings.

Biology

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Diet

Caterpillar hosts: Rattleweed (Astragalus douglasii) in the pea family (Fabaceae). Adult food: Flower nectar from thistles and mints.

Reproduction

Males patrol open areas to find receptive females. Eggs are laid singly on the underside of host plant leaves; caterpillars eat leaves. Larvae hibernate.

Behavior

Flight: Two flights from February-May and from June-August.

Taxonomy

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Synonyms

Colias harfordi Edwards 1877

Notes

Name Status: Accepted Name .

Last scrutiny: 08-Feb-2007

Similar Species

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Members of the genus Colias

ZipcodeZoo has pages for 56 species and subspecies in this genus:

C. alexandra (Queen Alexandra's Sulphur) · C. alexandra alexandra (Queen Alexandra's Sulphur) · C. alfacariensis (Berger's Clouded Yellow) · C. aurorina (Dawn Clouded Yellow Butterfly) · C. aurorina aurorina (Dawn Clouded Yellow Butterfly) · C. behri (Sierra Green Sulfur Butterfly) · C. behrii (Sierra Sulphur) · C. canadensis (Canadian Sulphur) · C. caucasica (Balkan Clouded Yellow) · C. cesonia (Dog Face) · C. chippewa (Heath Sulphur) · C. christina (Christina Sulphur) · C. christina christina (Christina Sulphur) · C. christina kluanensis (Kluane Sulphur) · C. chrysotheme (Lesser Clouded Yellow Butterfly) · C. crocea (Clouded Yellow Butterfly) · C. croceus (Clouded Yellow Butterfly) · C. erate (Eastern Pale Clouded Yellow) · C. eurytheme (Alfalfa Butterfly) · C. gigantea (Giant Sulphur) · C. gigantea gigantea (Giant Sulphur) · C. gigantea harroweri (Southern Giant Sulphur) · C. harfordii (Harford's Sulphur) · C. hecla (Hecla Sulphur) · C. hecla hecla (Artic Sulphur) · C. hecla hela (Hela Sulphur) · C. hyale (Pale Clouded Yellow) · C. interior (Pink-Edged Sulphur) · C. johanseni (Johansen's Sulphur) · C. meadii (Mead's Sulphur) · C. meadii elis (Elis Sulphur) · C. myrmidone (Danube Clouded Yellow Butterfly) · C. myrmidone myrmidone (Danube Clouded Yellow Butterfly) · C. nastes (Labrador Sulphur) · C. nastes aliaska (Alaskan Arctic Sulphur) · C. nastes moina (Manitoba Arctic Sulphur) · C. nastes nastes (Labrador Sulphur) · C. nastes streckeri (Strecker's Arctic Sulphur) · C. nastes werdandi (Nastes Sulphur) · C. occidentalis (Western Sulphur) · C. occidentalis chrysomelas (Golden Sulphur) · C. occidentalis pseudochristina (Western Sulphur) · C. palaeno (Palaeno Sulphur) · C. palaeno chippewa (Chippewa Sulphur) · C. palaeno palaeno (Moorland Clouded Yellow Butterfly) · C. pelidne (Pelidne Sulphur) · C. pelidne pelidne (Pelidne Sulphur) · C. pelidne skinneri (Skinner's Pelidne Sulphur) · C. phicomone (Mountain Clouded Yellow) · C. philodice (Clouded Sulfur) · C. philodice philodice (Clouded Sulphur) · C. philodice vitabunda (Lively Clouded Sulphur) · C. scudderi (Scudder's Sulphur) · C. scudderii (Scudder's Sulphur) · C. tyche (Booth's Sulphur) · C. tyche thula (Thula Sulphur)

More Info

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Further Reading

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Notes

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Contributors

Identifiers

Footnotes

  1. http://www.butterfliesandmoths.org/taxonomy?f=15&sci=Pieridae&com=Whites and Sulphurs [back]
Last Revised: 7/16/2012