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
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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

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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)

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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
June 19, 2016 Doug Bruce Meigs County, Tennessee, United States June 28, 2016 Details
June 26, 2016 Doug Bruce Pickett County, Tennessee, United States June 28, 2016 Details
June 25, 2016 billwx Garfield County, Oklahoma, United States June 28, 2016 Details
June 16, 2016 Robert Putnam Johnson County, Missouri, United States June 27, 2016 Details
June 14, 2016 aarongunnar Jefferson County, Wisconsin, United States June 25, 2016 Details
June 21, 2016 ButterBelle Putnam County, Tennessee, United States June 21, 2016 Details
June 11, 2016 Doug Bruce Carter County, Tennessee, United States June 17, 2016 Details
May 29, 2016 billwx Garfield County, Oklahoma, United States June 14, 2016 Details
June 01, 2016 Sue Orlowski Botetourt County, Virginia, United States June 12, 2016 Details
April 24, 2016 billwx Garfield County, Oklahoma, United States June 12, 2016 Details
April 30, 2016 billwx Garfield County, Oklahoma, United States June 12, 2016 Details
June 05, 2016 CA Ivy Adair County, Oklahoma, United States June 07, 2016 Details
May 23, 2016 rosedrakon Douglas County, Kansas, United States June 06, 2016 Details
June 04, 2016 ralphminer Kane County, Illinois, United States June 05, 2016 Details
August 01, 2010 Gordilly Douglas County, Nebraska, United States May 30, 2016 Details
May 28, 2016 CA Ivy (Jon C. Ivy) Logan County, Arkansas, United States May 30, 2016 Details
May 17, 2016 PDunwiddie Island County, Washington, United States May 29, 2016 Details
May 27, 2016 billwx Garfield County, Oklahoma, United States May 28, 2016 Details
May 23, 2016 CA Ivy McDonald County, Missouri, United States May 25, 2016 Details
May 16, 2016 D. Dodd Brewster County, Texas, United States May 24, 2016 Details
October 11, 2015 llanning Jefferson County, Colorado, United States May 22, 2016 Details
October 11, 2015 PDunwiddie Denver County, Colorado, United States May 22, 2016 Details
May 15, 2016 carlysummer Malheur County, Oregon, United States May 22, 2016 Details
May 15, 2016 ridgeboy Polk County, Florida, United States May 18, 2016 Details
May 14, 2016 dabidaloca Kern County, California, United States May 16, 2016 Details
April 10, 2016 randimal Island County, Washington, United States May 15, 2016 Details
May 02, 2016 cosmic_cat Gregg County, Texas, United States May 03, 2016 Details
April 30, 2016 CA Ivy (Jon C. Ivy) Sequoyah County, Oklahoma, United States May 02, 2016 Details
August 18, 2015 sh11 Ontario, Canada May 01, 2016 Details
June 25, 2015 sh11 Ontario, Canada May 01, 2016 Details
September 06, 2015 sh11 Ontario, Canada May 01, 2016 Details
April 29, 2016 ButterBelle Putnam County, Tennessee, United States April 29, 2016 Details
October 16, 2014 mathgeek Jackson County, Illinois, United States April 28, 2016 Details
April 27, 2016 CA Ivy Sebastian County, Arkansas, United States April 27, 2016 Details
March 02, 2013 nabaker Texas, Kimble County, United States April 25, 2016 Details
April 16, 2016 AnnL Todd County, Minnesota, United States April 19, 2016 Details
February 19, 2016 Jonathan Clark La Salle Parish, Louisiana, United States April 14, 2016 Details
November 02, 2015 ncrosbyrd Hidalgo County, Texas, United States April 06, 2016 Details
November 02, 2015 ncrosbyrd Hidalgo County, Texas, United States April 05, 2016 Details
April 03, 2016 cosmic_cat Texas, United States, Wood County April 05, 2016 Details
November 02, 2015 jbaca59 Santa Fe County, New Mexico, United States April 01, 2016 Details
March 25, 2016 PDunwiddie Bexar County, Texas, United States March 28, 2016 Details
March 19, 2016 PONYRCR San Diego County, California, United States March 22, 2016 Details
March 13, 2016 CA Ivy Sebastian County, Arkansas, United States March 13, 2016 Details
March 03, 2016 gpstewart Burnet County, Texas, United States March 03, 2016 Details
February 20, 2016 TPeterson San Bernardino County, California, United States February 28, 2016 Details
June 02, 2015 billwx Garfield County, Oklahoma, United States February 28, 2016 Details
June 28, 2015 billwx Garfield County, Oklahoma, United States February 28, 2016 Details
April 25, 2012 billwx Garfield County, Oklahoma, United States February 27, 2016 Details
July 03, 2014 billwx Garfield County, Oklahoma, United States February 27, 2016 Details