Central American Indigo Snake

Central American Indigo Snake

Drymarchon melanurus

Silhouette: Alex Slavenko · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~10% · With luck
at Calakmul Biosphere Reserve
13 Verified sightings at Calakmul Biosphere Reserve From 2019 to 2026
43 Verified sightings across all 15 parks From 2019 to 2026
August Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Central American Indigo Snake

The Middle American indigo snake (Drymarchon melanurus), also known commonly as the blacktail cribo, is a species of large, nonvenomous, snake in the family Colubridae. The species is native to the southwestern United States, Mexico, Central America, and northern South America. In addition to the nominate subspecies, it has four other recognized subspecies, including D. m. erebennus, commonly known as the Texas indigo snake.

D. melanurus is a large species that can grow to a total length (including tail) of 1.80 m (6 ft) to over 2.40 m (8 ft). This species has predominantly olive-brown glossy dorsal scales evolving to black at the tail. The underside is a lighter olive-yellow, olive-tan color.

D. melanurus has distinctive dark markings round the eyes, a vertical dark slash just behind the jaw. and a heavy diagonal dark slash on both sides of the neck. The subspecies D. m. erebennus is predominantly solid black, though there can be lighter shaded variations.

The geographic range of D. melanurus extends from southern Texas southwards through the Gulf Coast of Mexico, the Yucatán Peninsula, Guatemala and Belize. On the Pacific coast... Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Santa Rosa National Park 🇨🇷 Costa Rica
~10%
2 Calakmul Biosphere Reserve 🇲🇽 Mexico
~10%
3 Sian Ka'an Biosphere Reserve 🇲🇽 Mexico
~10%
4 Cockscomb Basin Wildlife Sanctuary 🇧🇿 Belize
Insufficient data
5 Cusuco National Park 🇭🇳 Honduras
Insufficient data
6 Celaque National Park 🇭🇳 Honduras
Insufficient data
7 Puracé National Natural Park 🇨🇴 Colombia
Insufficient data
8 Celestún Biosphere Reserve 🇲🇽 Mexico
Insufficient data
9 Masaya Volcano National Park 🇳🇮 Nicaragua
Insufficient data
10 Rincón de la Vieja National Park 🇨🇷 Costa Rica
Insufficient data
11 Cañón del Sumidero National Park 🇲🇽 Mexico
Insufficient data
12 Ría Lagartos Biosphere Reserve 🇲🇽 Mexico
Insufficient data
13 Tikal National Park 🇬🇹 Guatemala
Insufficient data
14 Cabo Blanco Absolute Nature Reserve 🇨🇷 Costa Rica
Insufficient data
15 Monteverde Cloud Forest Reserve 🇨🇷 Costa Rica
Insufficient data

Quick answers

What are the chances of seeing a Central American Indigo Snake in Calakmul Biosphere Reserve?

About 10% of wildlife watchers report a Central American Indigo Snake sighting in Calakmul Biosphere Reserve, based on 13 verified sightings from GBIF citizen-science data.

When is the best time to see Central American Indigo Snake in Calakmul Biosphere Reserve?

August has the highest sighting rate for Central American Indigo Snake in Calakmul Biosphere Reserve in our monthly data.

← Back to Calakmul Biosphere Reserve