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

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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
November 24, 2016 billwx Garfield County, Oklahoma, United States November 26, 2016 Details
November 24, 2016 billwx Garfield County, Oklahoma, United States November 25, 2016 Details
November 05, 2016 sseagrave Sheridan County, Wyoming, United States November 17, 2016 Details
November 11, 2016 Jeff Trahan Benton County, Arkansas, United States November 15, 2016 Details
November 13, 2016 Doug Bruce Campbell County, Tennessee, United States November 14, 2016 Details
October 29, 2016 billwx Garfield County, Oklahoma, United States November 09, 2016 Details
October 31, 2016 billwx Garfield County, Oklahoma, United States November 09, 2016 Details
November 06, 2016 Doug Bruce Bledsoe County, Tennessee, United States November 08, 2016 Details
November 04, 2016 margueritehamilton Ontario, Canada November 07, 2016 Details
November 04, 2016 margueritehamilton Ontario, Canada November 07, 2016 Details
November 04, 2016 ezeemonee Santa Barbara County, California, United States November 06, 2016 Details
October 30, 2016 willfly Ontario, Canada November 03, 2016 Details
November 02, 2016 gunhilda Payne County, Oklahoma, United States November 02, 2016 Details
October 29, 2016 TallyCannon Wakulla County, Florida, United States November 01, 2016 Details
October 13, 2016 Doug Bruce Hardeman County, Tennessee, United States October 31, 2016 Details
October 29, 2016 stephen stedman Hardin County, Tennessee, United States October 31, 2016 Details
August 31, 2016 MDbutterflyman Allegany County, Maryland, United States October 29, 2016 Details
October 15, 2016 ezeemonee St Marys County, Maryland, United States October 29, 2016 Details
October 15, 2016 jtylerbell St Marys County, Maryland, United States October 29, 2016 Details
October 13, 2016 dbruce Alcorn County, Mississippi, United States October 25, 2016 Details
October 24, 2016 ButterBelle Putnam County, Tennessee, United States October 24, 2016 Details
October 15, 2016 billwx Garfield County, Oklahoma, United States October 18, 2016 Details
August 27, 2016 tom nolan Burlington County, New Jersey, United States October 17, 2016 Details
August 20, 2016 yardbird Camden County, New Jersey, United States October 17, 2016 Details
October 16, 2016 davidr Cambria County, Pennsylvania, United States October 17, 2016 Details
October 15, 2016 billwx Garfield County, Oklahoma, United States October 17, 2016 Details
October 15, 2016 billwx Garfield County, Oklahoma, United States October 17, 2016 Details
October 14, 2016 ButterBelle Putnam County, Tennessee, United States October 14, 2016 Details
October 10, 2016 hmclin Adams County, Pennsylvania, United States October 11, 2016 Details
October 07, 2016 Jeff Trahan Little River County, Arkansas, United States October 08, 2016 Details
October 01, 2016 billwx Garfield County, Oklahoma, United States October 07, 2016 Details
October 02, 2016 billwx Garfield County, Oklahoma, United States October 07, 2016 Details
October 02, 2016 billwx Garfield County, Oklahoma, United States October 07, 2016 Details
August 21, 2016 Suzanne Doyle Yolo County, California, United States September 28, 2016 Details
September 23, 2016 Jeff Trahan Hempstead County, Arkansas, United States September 26, 2016 Details
September 23, 2016 billwx Garfield County, Oklahoma, United States September 25, 2016 Details
September 24, 2016 billwx Garfield County, Oklahoma, United States September 25, 2016 Details
September 24, 2016 billwx Garfield County, Oklahoma, United States September 25, 2016 Details
September 17, 2016 ydlrun Dauphin County, Pennsylvania, United States September 23, 2016 Details
August 14, 1964 Todd Stefanic Butte County, Idaho, United States September 20, 2016 Details
September 11, 2016 dabidaloca Kern County, California, United States September 20, 2016 Details
September 16, 2016 digginflowers Lebanon County, Pennsylvania, United States September 18, 2016 Details
September 17, 2016 Anne Wills Mason County, West Virginia, United States September 18, 2016 Details
September 09, 2016 N Weasel Madera County, California, United States September 16, 2016 Details
September 13, 2016 hmclin York County, Pennsylvania, United States September 15, 2016 Details
September 09, 2016 Chris Blomme Ontario, Canada September 14, 2016 Details
September 11, 2016 Chris Blomme Ontario, Canada September 14, 2016 Details
September 01, 2016 monikawood Tioga County, Pennsylvania, United States September 12, 2016 Details
September 04, 2016 stephen stedman Macon County, Tennessee, United States September 05, 2016 Details
September 03, 2016 Karen Adams Franklin County, Ohio, United States September 05, 2016 Details