Attributes of Colias eurytheme

Orange Sulphur
Colias eurytheme Boisduval, 1852

Family: Pieridae
Subfamily: Coliadinae
Identification: Quite variable. Upperside of male yellow with orange overlay, yellow veins, wide black border, and dark black cell spot. Female yellow or white with irregular black border surrounding light spots. Underside hindwing spot silver with 2 concentric dark rings, and a spot above it.
Wing Span: 1 3/8 - 2 3/4 inches (3.5 - 7 cm).
Life History: Males patrol for receptive females, who lay eggs singly on top of host plant leaves. Most feeding takes place at night. Young caterpillars chew holes in the tops of leaves, then later feed from the leaf tip. Older caterpillars eat half of the leaf before moving to the other half. Chrysalids overwinter.
Flight: Two-three flights in the north from June-October, 4-5 in the south from March-November.
Caterpillar Hosts: Plants in the pea family (Fabaceae) including alfalfa (Medicago sativa), white clover (Trifolium repens), and white sweet clover (Melilotus alba).
Adult Food: Nectar from many kinds of flowers including dandelion, milkweeds, goldenrods, and asters.
Habitat: A wide variety of open sites, especially clover and alfalfa fields, mowed fields, vacant lots, meadows, road edges.
Range: Southern Canada to central Mexico, coast to coast in the United States except for the Florida peninsula. Comments: One of the most widespread and common butterflies in North America.
Conservation: Not required.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: Caterpillars can be very destructive in alfalfa fields.
Taxonomy Notes:

Images of Colias eurytheme

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Colias eurytheme - Colias-eurytheme-ventral-Queener-crop.jpg

Colias eurytheme - Colias-eurytheme-ventral-Queener-crop.jpg
Colias eurytheme - OrangeSulphur2_small.jpg

Colias eurytheme - OrangeSulphur2_small.jpg
Colias eurytheme - Orangesulphurcrop.jpg

Colias eurytheme - Orangesulphurcrop.jpg
Colias eurytheme - OrangeSulphur_small.jpg

Colias eurytheme - OrangeSulphur_small.jpg
Colias eurytheme - Colias_eurytheme.jpg

Colias eurytheme - Colias_eurytheme.jpg
Colias eurytheme - Colias_eurytheme2.jpg

Colias eurytheme - Colias_eurytheme2.jpg
Colias eurytheme - Colias_eurythemeSanders.jpg

Colias eurytheme - Colias_eurythemeSanders.jpg
Colias eurytheme - TammyKnuth-Colias_eurytheme-crop.jpg

Colias eurytheme - TammyKnuth-Colias_eurytheme-crop.jpg

The map below displays all BAMONA data for this species and has three different data layers:
1. All records (yellow dots)   2. Recently verified records (orange dots)*   3. US county records (purple)

There are also three base layers: 1. Satellite    2. Normal   3. Hybrid

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*The orange dots on the map provide access to information about the 400 most recently verified sightings of this species. Sometimes, there are several records at the same location. Use the table view to access these records.

By default, the fifty most recently verified sightings are below. Sort by Observation Date to see the most recent sightings, or filter the sightings by region to get a regional list.

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Observation Date Submitter Region Verified Datesort icon
January 01, 1950 legacy.reporter Warren County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Union County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Sussex County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Somerset County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Hunterdon County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Mercer County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Middlesex County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Monmouth County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Morris County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Ocean County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Passaic County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Salem County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Hudson County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Camden County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Cape May County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Cumberland County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Essex County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Gloucester County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Burlington County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Bergen County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Atlantic County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Sullivan County, New Hampshire, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Strafford County, New Hampshire, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Hillsborough County, New Hampshire, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Merrimack County, New Hampshire, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Rockingham County, New Hampshire, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Grafton County, New Hampshire, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Belknap County, New Hampshire, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Carroll County, New Hampshire, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Cheshire County, New Hampshire, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Coos County, New Hampshire, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Baldwin County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Barbour County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Blount County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Bullock County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Butler County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Calhoun County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Cleburne County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Conecuh County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter DeKalb County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Escambia County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Fayette County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Franklin County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Henry County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Houston County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Jackson County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Lee County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Macon County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Madison County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Marion County, Alabama, United States December 31, 2004 Details