Attributes of Strymon melinus

Gray Hairstreak
Strymon melinus (Hübner, 1818)

Family: Lycaenidae
Subfamily: Theclinae
Identification: One tail on hindwing. Upperside blue-gray with large red spot near tail. Underside of spring/fall form is dark gray, summer form is paler gray. Relatively straight postmedian line is white, bordered with orange on the inside edge.
Wing Span: 7/8 - 1 3/8 inches (2.2 - 3.5 cm).
Life History: Males perch all afternoon on small trees and shrubs to seek receptive females. Eggs are laid singly on flowers of host plant. Young caterpillars feed on flowers and fruits; older ones may eat leaves. Chrysalids hibernate.
Flight: Two flights from May-September in the north, three-four flights from February-November in the south.
Caterpillar Hosts: Flowers and fruits from an almost endless variety of plants; most often from pea (Fabaceae) and mallow (Malvaceae) families including beans (Phaseolus), clovers (Trifolium), cotton (Gossypium), and mallow (Malva).
Adult Food: Nectar from many flower species including dogbane, milkweed, mint, winter cress, goldenrod, tick trefoil, and white sweet clover.
Habitat: Open, nonforested sites; common in disturbed, weedy areas.
Range: Throughout continental United States from southern Canada south to Mexico; southward to Venezuela. Comments: The most widespread hairstreak in North America.
Conservation: Not usually required.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: Caterpillars may cause economic damage to bean and cotton crops.
Taxonomy Notes:

Images of Strymon melinus

Click on an image to view full size and to see additional details.









Strymon melinus - strymon_melinus_franki_caterpillar_b_raisingbutteflies.jpg

Strymon melinus - strymon_melinus_franki_caterpillar_b_raisingbutteflies.jpg
Strymon melinus - Grayhairstreakcrop2.jpg

Strymon melinus - Grayhairstreakcrop2.jpg
Strymon melinus - strymon_melinus_franki_caterpillar_a_raisingbutteflies.jpg

Strymon melinus - strymon_melinus_franki_caterpillar_a_raisingbutteflies.jpg
Strymon melinus - strymon_melinuscat90107c.jpg

Strymon melinus - strymon_melinuscat90107c.jpg
Strymon melinus - GrayHairstreak-Simons.jpg

Strymon melinus - GrayHairstreak-Simons.jpg
Strymon melinus - strymon_melinus91805c.jpg

Strymon melinus - strymon_melinus91805c.jpg
Strymon melinus - Strymon_melinus.jpg

Strymon melinus - Strymon_melinus.jpg
Strymon melinus - Strymon_melinusSanders.jpg

Strymon melinus - Strymon_melinusSanders.jpg
Strymon melinus - Strymon_melinusSanders2.jpg

Strymon melinus - Strymon_melinusSanders2.jpg
Strymon melinus - GrayHairstreak_small.jpg

Strymon melinus - GrayHairstreak_small.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)

How to use the map:
Click on the map and move your mouse to pan.
Zoom by using the plus [+] and minus [-] on the left side of the map.
To change which map layers are displayed, click on the plus sign [+] on the right side of the map and turn on/off the data layers and base layers.

*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.

See more recently verified sightings of all species.

You don't have Javascript enabled. Hover for more information! But don't worry: you can still use this web site! You have two options:
  • enable Javascript in your browser and then refresh this page, for a much enhanced experience.
  • click the Update button every time you want to update the selection.
Observation Date Submitter Region Verified Datesort icon
June 26, 2016 billwx Garfield County, Oklahoma, United States June 30, 2016 Details
June 25, 2016 billwx Garfield County, Oklahoma, United States June 28, 2016 Details
June 25, 2016 Mzteachuh San Bernardino County, California, United States June 26, 2016 Details
June 19, 2016 billwx Garfield County, Oklahoma, United States June 23, 2016 Details
June 18, 2016 billwx Garfield County, Oklahoma, United States June 23, 2016 Details
June 19, 2016 diwalks2 San Bernardino County, California, United States June 22, 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 05, 2016 billwx Garfield County, Oklahoma, United States June 14, 2016 Details
June 12, 2016 billwx Garfield County, Oklahoma, United States June 13, 2016 Details
April 30, 2016 billwx Garfield County, Oklahoma, United States June 12, 2016 Details
June 10, 2016 CA Ivy Sebastian County, Arkansas, United States June 12, 2016 Details
June 06, 2016 Mzteachuh San Bernardino County, California, United States June 08, 2016 Details
May 21, 2011 yardbird Cumberland County, New Jersey, United States June 07, 2016 Details
June 04, 2016 CA Ivy Sebastian County, Arkansas, United States June 07, 2016 Details
May 29, 2016 Jonathan Clark La Salle Parish, Louisiana, United States June 05, 2016 Details
May 30, 2016 Doug Bruce Obion County, Tennessee, United States June 02, 2016 Details
May 31, 2016 cblazo Franklin County, Pennsylvania, United States June 01, 2016 Details
May 31, 2016 CA Ivy Sebastian County, Arkansas, United States May 31, 2016 Details
May 27, 2016 billwx Garfield County, Oklahoma, United States May 28, 2016 Details
May 27, 2016 billwx Garfield County, Oklahoma, United States May 28, 2016 Details
May 27, 2016 ezeemonee Ventura County, California, United States May 28, 2016 Details
May 24, 2016 Christine Mooney Volusia County, Florida, United States May 25, 2016 Details
May 21, 2016 hiker96 Douglas County, Kansas, United States May 24, 2016 Details
May 16, 2016 ezeemonee Ventura County, California, United States May 22, 2016 Details
May 04, 2016 Sue Orlowski Spokane County, Washington, United States May 19, 2016 Details
May 04, 2016 ncrosbyrd Wakulla County, Florida, United States May 18, 2016 Details
April 28, 2016 randimal Kittitas County, Washington, United States May 15, 2016 Details
May 09, 2016 jim.odonater Tillamook County, Oregon, United States May 14, 2016 Details
May 13, 2016 JDreimiller Snohomish County, Washington, United States May 14, 2016 Details
April 30, 2016 CA Ivy Sequoyah County, Oklahoma, United States May 02, 2016 Details
April 28, 2016 EarlyDawnPhotography Grant County, Kentucky, United States May 02, 2016 Details
April 23, 2016 ezeemonee San Nicolas Island County, California, United States April 26, 2016 Details
April 16, 2016 rebeccafm Los Angeles County, California, United States April 26, 2016 Details
April 24, 2016 msteinhelper Bexar County, Texas, United States April 25, 2016 Details
April 21, 2016 ezeemonee San Nicolas Island County, California, United States April 22, 2016 Details
April 21, 2016 ezeemonee San Nicolas Island County, California, United States April 22, 2016 Details
April 17, 2016 PONYRCR Los Angeles County, California, United States April 18, 2016 Details
April 05, 2016 Bill Emch Marathon Key County, Florida, United States April 08, 2016 Details
July 09, 2015 M Kuhlman Missoula County, Montana, United States April 07, 2016 Details
March 23, 2016 RichHubie Mendocino County, California, United States March 24, 2016 Details
March 19, 2016 CA Ivy Sebastian County, Arkansas, United States March 19, 2016 Details
February 25, 2016 KittKatt Los Angeles County, California, United States March 10, 2016 Details
September 24, 2015 digginflowers Cape May County, New Jersey, United States February 29, 2016 Details
June 02, 2015 billwx Garfield County, Oklahoma, United States February 28, 2016 Details
July 08, 2015 billwx Garfield County, Oklahoma, United States February 28, 2016 Details
April 25, 2012 billwx Garfield County, Oklahoma, United States February 27, 2016 Details
May 01, 2012 billwx Garfield County, Oklahoma, United States February 27, 2016 Details
May 25, 2013 billwx Garfield County, Oklahoma, United States February 27, 2016 Details
May 25, 2015 billwx Garfield County, Oklahoma, United States February 27, 2016 Details