Costa Rica Species
Colobura dirce
AnimaliaHighest rank in taxonomy. Groups all life into domains: Animalia, Plantae, Fungi, etc.IUCN NEInternational Union for Conservation of Nature — the world authority on species extinction risk, using standardized criteria. — Not Evaluated — not yet assessed against the IUCN Red List criteria.In ProgressCurrent stage of this record in the editorial review workflow. Recent Sighting

Colobura dirce

Dirce Beauty

(Linnaeus, 1758)

Detailed Texts Multi-lang
A distinctive medium-sized butterfly. The upper side of the wings is predominantly dark brown with a broad, striking pale yellow or cream-colored diagonal band across the forewings. The underside features a dense, intricate mosaic pattern of fine black and white wavy lines that closely resembles a zebra pattern or tree bark.

Added by

Anonymous Curator

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Under Review

Last modified by

Julia Trouin

TaxonomyBiological classification ranks placing this species within the tree of life, from Kingdom down to Genus.

PhylumRank below Kingdom. Groups organisms sharing a fundamental body plan (e.g., Chordata = vertebrates and some invertebrates).Arthropoda
ClassRank below Phylum. Subdivides by structural traits (e.g., Mammalia, Aves, Reptilia, Insecta).Insecta
OrderRank below Class. Groups related families sharing common ancestry (e.g., Carnivora, Primates).Lepidoptera
FamilyRank below Order. Groups closely related genera (e.g., Felidae = cats, Canidae = dogs).Nymphalidae
GenusRank just above Species. The first word in the two-part binomial scientific name.Colobura
Taxonomic AuthorityThe scientist who first formally described and published this species, followed by the year of publication.(Linnaeus, 1758)
Record Completeness
95%
Coming soon

Ecology & StatusHow this species lives: habitat preferences, diet, behavior, population status, and role in its ecosystem.

OriginWhether the species is native (evolved here), endemic (found only here), or introduced by human activity.

Native

Population TrendDirection of change in population size over time: increasing, stable, decreasing, or unknown.

Stable

Breeding SeasonTime of year when this species typically reproduces or flowers.

Year Round

Trophic RolePosition in the food chain: producer, herbivore, carnivore, omnivore, decomposer, or parasite.

Herbivore

Recent SightingsWhether this species has been observed in the wild in Costa Rica within recent years.

Yes

Habitat SummaryOverview of the specific ecosystems and environments where this species is found in Costa Rica. Multi-lang

Inhabits lowland tropical rainforests, secondary growth forests, forest edges, and damp orchards. It spends a significant amount of time around Cecropia trees, which serve as its primary larval host.

BehaviourDaily activity patterns, movement, territory use, foraging style, and seasonal behavioral changes. Multi-lang

Diurnal. They fly fast and erratically along forest pathways but immediately seek out tree trunks when landing. True to their cryptic nature, they quickly close their wings and adjust themselves head-down to blend into the pattern of the trunk.

Social ActivitySocial structure: whether the species is solitary, paired, or colonial; hierarchy and communication. Multi-lang

Solitary as adults, but highly social as early-stage larvae. Adults maintain specific feeding locations and tree trunks, sometimes interacting aggressively with other Nymphalids by flicking wings to secure optimal perches.

Feeding GuildWhat the species eats, how it forages or hunts, and its role as a consumer in the food web. Multi-lang

Herbivore (Folivore as larvae, Frugivore/Saprophage as adults).

Trophic Chain DetailsSpecific interactions in local food webs: prey species, predators, competitors, and scavengers. Multi-lang

Larvae feed strictly on Cecropia foliage. Adults seek out sugars and essential minerals from decaying fruit, animal excrement, and mud puddles. Caterpillars are preyed upon by specialized parasitic wasps, ants, and insectivorous forest birds.

Reproductive BehaviourMating strategies, courtship displays, nesting or spawning behavior, and parental care. Multi-lang

Males patrol along tree trunks and engage in visual contests to win over females. After pairing, the female searches out fresh Cecropia leaves to deposit clusters of eggs together, ensuring the larval group can feed communally upon hatching.

Physical Measures

Length (cm)

5.0 - 7.0 cm

Weight (Grams)

0.2 g - 0.6 g

Offspring per cycleTypical number of young (live births, eggs, or seeds) produced by one adult in a single reproductive event or breeding season.20 - 60
Sexual DimorphismObservable physical differences between males and females of the same species (e.g., size, coloration, features).No

Lifespan

Sexual MaturityAge at which the individual becomes capable of reproducing for the first time.

1 - 2 Days

Gestation / IncubationDuration from fertilization to birth (mammals) or to hatching (egg-laying species).

4 - 6

Lifespan EstimatedExpected duration of life from birth to natural death under wild conditions.
Males3 - 6 Weeks
Females3 - 6 Weeks

Evolutionary AdaptationsInherited traits and behaviors that improve the species' survival and reproduction in its specific environment. Multi-lang

The intricate black-and-white wavy pattern on the underside provides superb crypsis when resting on tree trunks, breaking up the butterfly's outline against the bark.
When settled on tree trunks, adults always rest facing downwards. This orientation, combined with an unique wing-flicking motion, helps confuse or startle approaching predators.

Main ThreatsDocumented pressures reducing the population: habitat loss, hunting, disease, climate change, and invasive species. Multi-lang

Loss of habitat and forest fragmentation due to agricultural expansion, which reduces the density of native Cecropia stands.

Interesting FactsSurprising or notable facts that highlight what makes this species unique or ecologically important. Multi-lang

The caterpillars are highly gregarious during their early development, feeding in closely packed groups on the upper surfaces of leaves before dispersing to pupate.
Adults almost never visit flowers for nectar; they fulfill their nutritional needs by drinking from fermenting sap flows, overripe forest fruits, and wet riverbanks.