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)

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

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
April 13, 2014 randimal Thurston County, Washington, United States April 20, 2014 Details
March 27, 2014 Greylan Collin County, Texas, United States April 15, 2014 Details
September 29, 2013 Airedoc Brunswick County, North Carolina, United States April 08, 2014 Details
April 03, 2014 Donna Menke Caldwell County, Texas, United States April 04, 2014 Details
July 30, 2013 stormyeyes99 Middlesex County, New Jersey, United States March 24, 2014 Details
September 04, 2012 rosenthal.k Fairfax County, Virginia, United States March 16, 2014 Details
September 08, 2013 digginflowers Cape May County, New Jersey, United States February 23, 2014 Details
August 16, 2009 rosenthal.k Adams County, Colorado, United States February 15, 2014 Details
October 26, 2013 Terry W. Johnson Monroe County, Georgia, United States February 14, 2014 Details
February 07, 2014 Robert Gorman Orange County, California, United States February 07, 2014 Details
January 17, 2014 Robert Gorman Orange County, California, United States January 23, 2014 Details
January 21, 2014 Robert Gorman Orange County, California, United States January 23, 2014 Details
April 19, 2013 ddodd Texas, United States, Val Verde County January 04, 2014 Details
January 02, 2014 Robert Gorman Orange County, California, United States January 02, 2014 Details
November 03, 2013 Redheart Canyonlands Bandera County, Texas, United States December 24, 2013 Details
October 30, 2012 Robert Gorman San Diego County, California, United States December 05, 2013 Details
December 04, 2013 PJ Denton County, Texas, United States December 04, 2013 Details
August 18, 2013 Sparks7 Burnet County, Texas, United States November 22, 2013 Details
November 09, 2013 CA Ivy Sebastian County, Arkansas, United States November 11, 2013 Details
November 03, 2012 mathgeek Jackson County, Illinois, United States November 06, 2013 Details
November 03, 2013 Redheart Canyonlands Bandera County, Texas, United States November 05, 2013 Details
November 03, 2013 whbauer Bexar County, Texas, United States November 03, 2013 Details
January 24, 2013 Robert Gorman San Diego County, California, United States November 01, 2013 Details
October 31, 2013 CA Ivy Sebastian County, Arkansas, United States October 31, 2013 Details
July 31, 2013 vonderheyden Quintana Roo, Mexico October 20, 2013 Details
October 13, 2013 Doug Bruce McNairy County, Tennessee, United States October 15, 2013 Details
October 11, 2013 MAKI Ventura County, California, United States October 13, 2013 Details
October 10, 2013 Doug Bruce Gibson County, Tennessee, United States October 11, 2013 Details
September 14, 2013 mudgrub12 Placer County, California, United States October 10, 2013 Details
August 24, 2013 Victoria Powell Douglas County, Oregon, United States October 09, 2013 Details
September 25, 2013 Cathy110 James City County, Virginia, United States October 08, 2013 Details
October 06, 2013 Doug Bruce Shelby County, Tennessee, United States October 07, 2013 Details
October 04, 2013 Jeff Trahan Grant Parish, Louisiana, United States October 07, 2013 Details
October 07, 2013 Doug Bruce Tipton County, Tennessee, United States October 07, 2013 Details
October 05, 2013 Doug Bruce Lincoln County, Tennessee, United States October 06, 2013 Details
September 28, 2013 Doug Bruce Sevier County, Tennessee, United States October 04, 2013 Details
August 04, 2013 grayhairstreak New Castle County, Delaware, United States September 25, 2013 Details
September 25, 2013 gunhilda Payne County, Oklahoma, United States September 25, 2013 Details
September 24, 2013 CA Ivy Tulsa County, Oklahoma, United States September 24, 2013 Details
September 15, 2013 Doug Bruce Greene County, Tennessee, United States September 23, 2013 Details
September 22, 2013 CA Ivy Sebastian County, Arkansas, United States September 22, 2013 Details
September 15, 2013 gunhilda Payne County, Oklahoma, United States September 21, 2013 Details
September 04, 2013 cyric Washington County, Rhode Island, United States September 19, 2013 Details
August 25, 2013 Boilerup De Kalb County, Indiana, United States September 17, 2013 Details
September 11, 2013 mathgeek Jackson County, Illinois, United States September 16, 2013 Details
September 14, 2013 treichard Anne Arundel County, Maryland, United States September 15, 2013 Details
September 13, 2013 treichard Prince Georges County, Maryland, United States September 14, 2013 Details
September 02, 2013 Doug Bruce Morgan County, Tennessee, United States September 13, 2013 Details
September 02, 2013 Doug Bruce Roane County, Tennessee, United States September 11, 2013 Details
September 03, 2013 John LeBlanc Chesterfield County, Virginia, United States September 09, 2013 Details