Behr's Silvery Blue
Glaucopsyche lygdamus
incognitus
Lycaenidae
Blues, Coppers, Hairstreaks
Flies
March to May
Host Plant
Lupine, Legumes, Vetches
Nectar Plant
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Park Alerts [updated on 12/05/20]​​​​​​
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The Summit and Mitchell Canyon Visitor Centers and all campgrounds are closed indefinitely. Check the MDSP website for updates.
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All park visitors must distance themselves from others by the required 6 feet. Stay Safe.
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Water Shortage: All visitors are encouraged to bring water for consumption during their visit. Plan Ahead.
Take a Multimedia Tour of Mount Diablo
PRESERVATION THROUGH EDUCATION
