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Close-up photo of live male Mountain Mahogany Hairstreak (Satyrium tetra) ventral view

Crooked Cr, Lake Co, August 6 - male


Satyrium tetra

Size: 1.0 - 1.25 inches wingspan

Key ID features:  Dark gray-brown above.  Gray-brown below with median line, and submarginal band of black chevrons. Tail short on males, longer on females, with adjacent blue frosted patch, and one (or mare) of the chevrons with small orange patch. 

Similar species: Somewhat similar to Hedgerow HS, which has more defined median line on HW below. Gold-Hunter's HS is more brown below, with a less clear and defined median line on HW below.


Host plant: Mountain Mahogany (Cercocarpus montanus, C. ledifolius).

Habitat: Dry ridges and plateaus, oak-pine edges, shrubby areas with Mountain Mahogany. ​

Range: Southern portion of Josephine, Jackson, Klamath and Lake counties.

Season: Early July to late August

Abundance: Uncommon


Conservation Status: Secure

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