Urutu Lancehead
Urutu LanceheadUrutu LanceheadUrutu LanceheadUrutu Lancehead

Urutu Lancehead

Bothrops alternatus

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
20–30% · Possible
overall probability at El Palmar National Park
9 Verified records at El Palmar National Park
September Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

Bothrops alternatus, known by the common names crossed pit viper, yarará grande, and urutu, among others, is a highly venomous pit viper species found in South America (Brazil, Paraguay, Uruguay and Argentina). Within its range, it is an important cause of a snakebite. The specific name, alternatus, which is Latin for "alternating", is apparently a reference to the staggered markings along its body. No subspecies are currently recognized. Wikipedia →

20–30% of wildlife watchers report a Urutu Lancehead sighting in El Palmar National Park, based on 9 days of visitor records from GBIF citizen-science data.

📅 Monthly Probability

20–30
Jan
20–30
Feb
5–10
Mar
<5
Apr
40–50
May
5–10
Jun
5–10
Jul
5–10
Aug
50–60
Sep
5–10
Oct
30–40
Nov
5–10
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

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 Emas National Park 🇧🇷 Brazil
30–40%
2 Iberá National Park 🇦🇷 Argentina
20–30%
3 El Palmar National Park 🇦🇷 Argentina
20–30%
4 Serra da Canastra National Park 🇧🇷 Brazil
Insufficient data

Quick answers

What are the chances of seeing a Urutu Lancehead in El Palmar National Park?

About 22% of wildlife watchers report a Urutu Lancehead sighting in El Palmar National Park, based on 9 days of visitor records from GBIF citizen-science data.

When is the best time to see Urutu Lancehead in El Palmar National Park?

September has the highest sighting rate for Urutu Lancehead in El Palmar National Park in our monthly data.

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