Common Cerulean

Jamides celeno · Order: Lepidoptera · Family: Lycaenidae

Also called: Common Caerulean

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Common Cerulean
Photo: Vihansith Kulatunga, CC BY-SA

Male common cerulean butterflies have a pale bluish-white upper side. The forewing edge is narrowly black, widening slightly toward the tip, with brown-black fringe. The species occurs in the Indomalayan region and shows seasonal colour changes, with dry-season forms being darker and having broader black markings.

Source: Wikipedia

How to recognize it

Males have a pale bluish-white ground colour on the upperside. The forewing margin is thinly edged in black, widening a bit toward the apex, and the fringe is brownish-black.

Source: Wikipedia

What it eats

Larvae are tended by the ant Camponotus mitis. Larvae feed on the plant Heynea trijuga.

Source: Wikipedia

Life cycle

Adults show seasonal polyphenism, changing appearance with the season.

Source: Wikipedia

When you see it

Dry-season brood individuals are darker overall and have broader black wing markings than wet-season forms.

Source: Wikipedia

Where it comes from

Common cerulean is a small lycaenid butterfly native to the Indomalayan realm.

Source: Wikipedia

Lookalikes

Dry-season males and females look similar to the wet-season ones but are darker with more pronounced black edges.

Source: Wikipedia

More photos

Questions people ask

What plants do common cerulean caterpillars eat?

The caterpillars feed on Heynea trijuga.

Source: Wikipedia

Do ants attend common cerulean larvae?

Yes, the ant Camponotus mitis tends the larvae.

Source: Wikipedia

How can I tell a dry-season common cerulean from a wet-season one?

Dry-season butterflies are generally darker and have broader black wing edges.

Source: Wikipedia

Same family (Lycaenidae)

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Jamides_celeno

Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia

Text written 2026-10-22 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.