Fer-de-lance

Bothrops asper

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered

KingdomAnimalia (Animals)
PhylumChordata (Cordats)
ClassSquamata
FamilyViperidae (Vipèrids)
GenusBothrops (Neotropical Lanceheads)
SpeciesBothrops asper (Fer-de-lance)

Insufficient data

overall probability at San Lorenzo Protected Forest

1 Verified records at San Lorenzo Protected Forest

☀️🌙 Day & Night When it's active Active throughout day and night

The terciopelo (Bothrops asper), is a species of pit vipers, found from north-east Mexico to northern South America. At low to moderate elevations, its habitat ranges from northeastern Mexico to Colombian and Ecuadorian Andes, as well as Venezuela. With a mass of up to 6 kilograms (13 lb), and a maximal length of 2.5 metres (8.2 ft), the terciopelo is among the largest vipers. It is light to dark brown in color, often with yellowish, zig-zag patterning on either side of its body. Dubbed "the ultimate pit-viper" for its defensiveness, large size, fangs and potent venom yield, it has a fearsome reputation, responsible for the most envenomated snakebites within its range, largely due to its proximity to humans, livestock and pets. Nonetheless, like all venomous snakes, the terciopelo actively avoids contact with humans and other larger animals, with bites generally only occurring when the snake is cornered, pursued, or threatened. Wikipedia →

📅 Monthly Probability

📊

Fewer than 5 records of Fer-de-lance at San Lorenzo Protected Forest — not enough to chart months honestly.

☀️🌙 When They're Spotted

Active throughout day and night · across all parks (global)

☀️🌙Day & Night

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

#	Park	Country	Probability
1	Braulio Carrillo National Park	🇨🇷 Costa Rica	50–60%
2	Piedras Blancas National Park	🇨🇷 Costa Rica	50–60%
3	Manuel Antonio National Park	🇨🇷 Costa Rica	40–50%
4	Tenorio Volcano National Park	🇨🇷 Costa Rica	40–50%
5	Corcovado National Park	🇨🇷 Costa Rica	40–50%
6	Arenal Volcano National Park	🇨🇷 Costa Rica	30–40%
7	Utría National Natural Park	🇨🇴 Colombia	20–30%
8	Soberanía National Park	🇵🇦 Panama	20–30%
9	Carara National Park	🇨🇷 Costa Rica	20–30%
10	Sian Ka'an Biosphere Reserve	🇲🇽 Mexico	20–30%
11	Tayrona National Natural Park	🇨🇴 Colombia	20–30%
12	Pico Bonito National Park	🇭🇳 Honduras	20–30%
13	Marino Ballena National Park	🇨🇷 Costa Rica	10–20%
14	Tortuguero National Park	🇨🇷 Costa Rica	10–20%
15	Darién National Park	🇵🇦 Panama	10–20%
16	Cockscomb Basin Wildlife Sanctuary	🇧🇿 Belize	10–20%
17	Calakmul Biosphere Reserve	🇲🇽 Mexico	10–20%
18	Montes Azules Biosphere Reserve	🇲🇽 Mexico	10–20%
19	Gandoca-Manzanillo Wildlife Refuge	🇨🇷 Costa Rica	10–20%
20	Bastimentos Island National Marine Park	🇵🇦 Panama	10–20%
21	Cahuita National Park	🇨🇷 Costa Rica	10–20%
22	La Amistad International Park (Panama)	🇵🇦 Panama	10–20%
23	Chagres National Park	🇵🇦 Panama	10–20%
24	Tapantí-Macizo de la Muerte National Park	🇨🇷 Costa Rica	5–10%
25	Monteverde Cloud Forest Reserve	🇨🇷 Costa Rica	<5%
26	Rincón de la Vieja National Park	🇨🇷 Costa Rica	Insufficient data
27	San Lorenzo Protected Forest	🇵🇦 Panama	Insufficient data
28	El Triunfo	🇲🇽 Mexico	Insufficient data
29	Farallones de Cali National Natural Park	🇨🇴 Colombia	Insufficient data
30	Cusuco National Park	🇭🇳 Honduras	Insufficient data
31	Coiba National Park	🇵🇦 Panama	Insufficient data
32	Machalilla National Park	🇪🇨 Ecuador	Insufficient data
33	Cerro Azul Meámbar National Park	🇭🇳 Honduras	Insufficient data
34	Parque Natural Metropolitano	🇵🇦 Panama	Insufficient data
35	Chirripó National Park	🇨🇷 Costa Rica	Insufficient data
36	Lago de Yojoa	🇭🇳 Honduras	Insufficient data
37	Los Quetzales National Park	🇨🇷 Costa Rica	Insufficient data

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