Kramer's Pit Viper
Trimeresurus macrops
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassSquamata
- FamilyViperidae (Vipèrids)
- GenusTrimeresurus (Asian Lanceheads)
- SpeciesTrimeresurus macrops (Kramer's Pit Viper)
Trimeresurus macrops is a venomous pit viper species endemic to Southeast Asia. No subspecies are currently recognized. Common names include large-eyed pitviper, green pit viper, and Kramer's pit viper. Wikipedia →
20–30% of wildlife watchers report a Kramer's Pit Viper sighting in Khao Yai National Park, based on 35 days of visitor records from GBIF citizen-science data.
Closest Relatives at Khao Yai National Park
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · 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 | Khao Yai National Park | 🇹🇭 Thailand | |
| 2 | Doi Inthanon National Park | 🇹🇭 Thailand |
Quick answers
What are the chances of seeing a Kramer's Pit Viper in Khao Yai National Park?
About 25% of wildlife watchers report a Kramer's Pit Viper sighting in Khao Yai National Park, based on 35 days of visitor records from GBIF citizen-science data.
When is the best time to see Kramer's Pit Viper in Khao Yai National Park?
May has the highest sighting rate for Kramer's Pit Viper in Khao Yai National Park in our monthly data.