AnimaliaHighest rank in taxonomy. Groups all life into domains: Animalia, Plantae, Fungi, etc.IUCN LCInternational Union for Conservation of Nature — the world authority on species extinction risk, using standardized criteria. — Least Concern — widespread and abundant; not at immediate risk of extinction.In ProgressCurrent stage of this record in the editorial review workflow. Recent Sighting
Bothriechis schlegelii
Eyelash Palm-Pitviper
(Berthold, 1846)
Detailed Texts Multi-lang
Small arboreal snake with eyelash-like supraocular scales and highly variable coloration.
Added by
Gerardo Venegas
Reviewed by
Under Review
Last modified by
Gerardo Venegas
Other Names (Global)Regional and multilingual names used for this species across different countries and languages.
OropelVíbora de pestañas
Schlegel's pit viperPestañudaTaxonomyBiological 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).Chordata
ClassRank below Phylum. Subdivides by structural traits (e.g., Mammalia, Aves, Reptilia, Insecta).Reptilia
OrderRank below Class. Groups related families sharing common ancestry (e.g., Carnivora, Primates).Squamata
FamilyRank below Order. Groups closely related genera (e.g., Felidae = cats, Canidae = dogs).Viperidae
GenusRank just above Species. The first word in the two-part binomial scientific name.Bothriechis
Taxonomic AuthorityThe scientist who first formally described and published this species, followed by the year of publication.(Berthold, 1846)
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.
Carnivore
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 humid forests, cloud forests, and lowland plantations up to middle elevations.BehaviourDaily activity patterns, movement, territory use, foraging style, and seasonal behavioral changes. Multi-lang
Nocturnal and arboreal; uses its prehensile tail to hold on while ambush hunting.Social ActivitySocial structure: whether the species is solitary, paired, or colonial; hierarchy and communication. Multi-lang
Solitary; often found on the same perch for several days waiting for prey.Feeding GuildWhat the species eats, how it forages or hunts, and its role as a consumer in the food web. Multi-lang
Carnivore. Feeds on frogs, lizards, small birds, and small mammals.Trophic Chain DetailsSpecific interactions in local food webs: prey species, predators, competitors, and scavengers. Multi-lang
Controller of small vertebrate populations in the forest canopy.Reproductive BehaviourMating strategies, courtship displays, nesting or spawning behavior, and parental care. Multi-lang
Viviparous. Females give birth to live young, usually between 6 and 20.Physical Measures
Length (cm)
50.0 - 80.0 cm
Weight (Grams)
100 g - 400 g
Offspring per cycleTypical number of young (live births, eggs, or seeds) produced by one adult in a single reproductive event or breeding season.6 - 20
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.
2 - 3 Years
Gestation / IncubationDuration from fertilization to birth (mammals) or to hatching (egg-laying species).
--
Lifespan EstimatedExpected duration of life from birth to natural death under wild conditions.
Males10 - 15 Years
Females10 - 15 Years
Evolutionary AdaptationsInherited traits and behaviors that improve the species' survival and reproduction in its specific environment. Multi-lang
Its eyelashes help camouflage the eye outline among the foliage.
It possesses an extremely strong prehensile tail that allows it to hang to catch birds in flight.
Main ThreatsDocumented pressures reducing the population: habitat loss, hunting, disease, climate change, and invasive species. Multi-lang
Persecution by humans and habitat loss due to agriculture.
Interesting FactsSurprising or notable facts that highlight what makes this species unique or ecologically important. Multi-lang
The bright yellow color variant is commonly known as Oropel.
It is one of the most venomous snakes in Costa Rica, but its temperament is usually calm if undisturbed.
Image GalleryPhotographs of this species or habitat in its natural environment.
