Fer-de-lance
Bothrops asper
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassSquamata
- FamilyViperidae (Vipèrids)
- GenusBothrops (Neotropical Lanceheads)
- SpeciesBothrops asper (Fer-de-lance)
Closest Relatives at Tapantí-Macizo de la Muerte National Park
Black-speckled Palm Pit Viper
Bothriechis nigroviridis
Side-striped palm pit viper
Bothriechis lateralis
Costa Rica Montane Pitviper
Cerrophidion sasai
Rainforest Hog-nosed Viper
Porthidium nasutum
Blotched Palm-pitviper
Bothriechis supraciliaris
Central American Bushmaster
Lachesis stenophrys
📅 Monthly Probability
☀️🌙 When They're Spotted
Active throughout day and night · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
Quick answers
What are the chances of seeing a Fer-de-lance in Tapantí-Macizo de la Muerte National Park?
About 11% of visitor-days record a Fer-de-lance sighting in Tapantí-Macizo de la Muerte National Park, based on 17 observer-days of citizen-science data from GBIF.
When is the best time to see Fer-de-lance in Tapantí-Macizo de la Muerte National Park?
December has the highest sighting rate for Fer-de-lance in Tapantí-Macizo de la Muerte National Park in our monthly data.