Contact | Blog | Project Noah Facebook | Project Noah Twitter

A global citizen science platform
to discover, share and identify wildlife

Join Project Noah!

Thicket hairstreak

Callophrys spinetorum


This light brown butterfly rested on yarrow (Achillea sp.) for a few seconds. It fed on the flower's nectar and was covered in yellow pollen. The dorsal forewings are marked with a white line, while ventral wings are wavy-lined and black-spotted. Antennae and legs are patterned an alternating black and white.


Seen at the Ross Dam trailhead in North Cascades National Park.

Species ID Suggestions

Sign in to suggest organism ID


mauna Kunzah
mauna Kunzah 7 months ago

Thank you, Neil!

Neil Ross
Neil Ross 7 months ago

Beautiful spotting, Mauna.

mauna Kunzah
mauna Kunzah 8 months ago

Updated the ID. Thanks, Brian.

mauna Kunzah
mauna Kunzah 8 months ago

I didn’t know what plant the elfin was feeding on. There was a beetle on it too but I couldn’t get a picture before it flew away. I’ll look at C. spinetorum and compare it to the other similar species I’ve seen on Bugguide. Thanks, Brian!

Brian38 8 months ago

Awesome spotting Mauna! Yarrow is a great wildflower to watch for a variety of insects that feed on it. I agree with Callophrys sp. Also take a look at Callophrys spinetorum (thicket hairstreak).

mauna Kunzah
mauna Kunzah 8 months ago

Hi Robert! I agree. Thanks so much for the suggestion.

robert emond
robert emond 8 months ago

Mauna it looks to be in the genus Callophrys (Elfins)

mauna Kunzah
Spotted by
mauna Kunzah

Washington, USA

Lat: 48.73, Long: -121.06

Spotted on Jun 18, 2019
Submitted on Jul 7, 2019

Related Spottings

Green Hairstreak Green Hairstreak Zümrüt Mariposa

Nearby Spottings

Bullseye lichen Barbilophozia floerkei Spotting Spotting