Dusky Rattlesnake
Crotalus triseriatus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassSquamata
- FamilyViperidae (Vipèrids)
- GenusCrotalus (Serp de cascavell)
- SpeciesCrotalus triseriatus (Dusky Rattlesnake)
Common names: Mexican dusky rattlesnake, dusky rattlesnake Crotalus triseriatus is a venomous pit viper species found in Mexico. Two subspecies are currently recognized, including the nominate subspecies described here. Wikipedia →
10–20% of wildlife watchers report a Dusky Rattlesnake sighting in Reserva de la Biosfera Mariposa Monarca, based on 6 days of visitor records from GBIF citizen-science data.
Closest Relatives at Reserva de la Biosfera Mariposa Monarca
📅 Monthly Probability
🌙 When They're Spotted
Most active during nighttime hours (6pm–6am) · 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
| # | Park | Country | Probability |
|---|---|---|---|
| 1 | Reserva de la Biosfera Mariposa Monarca | 🇲🇽 Mexico |
More parks will be added in future updates.
Quick answers
What are the chances of seeing a Dusky Rattlesnake in Reserva de la Biosfera Mariposa Monarca?
About 19% of wildlife watchers report a Dusky Rattlesnake sighting in Reserva de la Biosfera Mariposa Monarca, based on 6 days of visitor records from GBIF citizen-science data.
When is the best time to see Dusky Rattlesnake in Reserva de la Biosfera Mariposa Monarca?
July has the highest sighting rate for Dusky Rattlesnake in Reserva de la Biosfera Mariposa Monarca in our monthly data.