Fauna
Insect

Mission Blue

Icaricia icarioides missionensis

Also known as Mission Blue Butterfly

The Mission Blue is a small butterfly associated closely with native lupines on windy coastal grasslands. Males appear bright blue above, while females are browner; both carry pale undersides marked with dark spots.

Coastal ButterflyLupine SpecialistProtected Subspecies
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & preyAdults drink flower nectar; caterpillars feed on the leaves of particular native lupines
Predators
  • Spiders
  • Birds
  • Predatory insects
ThreatsHost-plant loss, development, invasive vegetation, pesticide exposure, and poorly timed disturbance
HabitatsCoastal grassland and scrub with suitable lupine host plants and sheltered open slopes
Life spanOne generation per year; adults live only a few weeks
  1. FamilyLycaenidae
  2. SpeciesIcaricia icarioides missionensis
Range data is not available yet.
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Stay on designated trails to protect host plants, eggs, caterpillars, and resting adults.
What to notice
A tiny blue or brown butterfly with spotted pale undersides stays close to lupines on open coastal slopes.
Support conservation
Never net, touch, or pursue adults; remain on marked trails and withhold precise colony locations.
Responsible observation
  • Distance: Watch through binoculars rather than following low-flying butterflies.
  • Plants: Never step into or touch occupied lupine patches.
  • Privacy: Generalize observation coordinates before sharing them publicly.
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