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Grey Hairstreak

Strymon melinus


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. Caterpillar is variably green, has long hairs on dorsum and is fairly distinctive in this family. Throughout continental United States from southern Canada south to Mexico; southward to Venezuela. Two flights from May-September in the north, three-four flights from February-November in the south.


They prefer open, nonforested sites; common in disturbed, weedy areas. Adults feed on nectar from many flower species including dogbane, milkweed, mint, winter cress, goldenrod, tick trefoil, and white sweet clover. Caterpillar hosts are flowers and fruits from an almost endless variety of (usually) herbaceous plants; most often from pea (Fabaceae) and mallow (Malvaceae) families including beans (Phaseolus), clovers (Trifolium), cotton (Gossypium), and mallow (Malva).


Found on my Lantana's.

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nexttogone 9 years ago

Thank you, AndiBrowning. ") I planted a Chinquapin Oak Tree this spring and read somewhere, after the fact, that it was a host for the Grey Hairstreak. I had never heard of them till this year and so I have been looking for them. This was my first sighting ever, I think.

AndiBrowning 9 years ago

Nice. I saw one of these yesterday for the first time ever.

Spotted by

Bandera, Texas, USA

Spotted on Sep 2, 2012
Submitted on Sep 3, 2012

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