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Ceraunus Blue

Hemiargus ceraunus

The Ceraunus Blue is a small, beautiful butterfly with bright blue wings. It loves to flutter around flowers and is often seen in gardens and fields, making them a delightful sight!

Habitat: Urban areas

Appearance

The Ceraunus Blue has iridescent violet-blue upperwings in males, while females are dusky brown with a touch of blue near the body. Its pale grayish-white underwings feature small black spots and faint orange crescents, plus a tiny tail on each hindwing that sets it apart.

KingdomAnimaliaPhylumArthropodaClassInsectaOrderLepidopteraFamilyLycaenidaeGenusHemiargus
Ceraunus Blue
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Ceraunus Blue

Category

Insects

Rarity

Common

Danger

1/5 · Very low

Snaps

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Interesting facts

The name 'Ceraunus' comes from a Greek word meaning 'thunderbolt'!

Their tiny caterpillars are sometimes 'farmed' by ants for a sweet treat.

They can overwinter as a pupa, patiently waiting for spring to emerge.

This butterfly is one of the most widespread 'blues' in North America.

Special abilities

Ability

Sun Seeker

Ceraunus Blue can absorb warmth from the sun, which helps them quickly become active and fly, even on cooler days.

Ability

Distraction Tails

Ceraunus Blue has delicate hindwing tails and spots that mimic antennae and eyes, tricking predators into attacking the wrong end.

Ability

Rapid Generations

Ceraunus Blue can complete multiple life cycles in a single warm season, allowing their populations to grow quickly.

Measurements & details

Wingspan
22-30 mm
Size
10-15 mm
Lifespan
7-21 days
Flight Speed
15 km/h
Leg Count
6

Diet & Feeding

Adult Ceraunus Blues sip flower nectar, but their young feast on the leaves of legume plants.

Age differences: Larvae (caterpillars) eat plant leaves, flowers, and seeds; adults drink nectar from flowers.

Primary Foods

  • flower nectar
  • clover leaves
  • partridge pea leaves
  • alfalfa leaves
  • indigo leaves

Foraging Method

  • Foraging

Ecological connections

Traits

Also known as

No aliases listed yet.

Collections

Safety

Danger

1/5 · Very low

Always watch butterflies from a distance so you don't scare them away.

Frequently Asked Questions

What is Ceraunus Blue's wingspan?

22-30 mm

How big is Ceraunus Blue?

10-15 mm

How long does Ceraunus Blue live?

7-21 days

How fast can Ceraunus Blue fly?

15 km/h

What does Ceraunus Blue eat?

Adult Ceraunus Blues sip flower nectar, but their young feast on the leaves of legume plants.

Where is Ceraunus Blue usually found?

Urban areas

How does Ceraunus Blue hunt?

Foraging

How many legs does Ceraunus Blue have?

6

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Where to spot

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