Dipsas neuwiedi
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~40% in a week ~70%
Dipsas neuwiedi, also known commonly as Neuwied's tree snake and dormideira-cinzenta (gray sleepyhead) in Brazilian Portuguese, is a species of snake in the subfamily Dipsadinae of the family Colubridae. The species is endemic to Brazil.
The specific name, neuwiedi, is in honor of German naturalist Prince Maximilian of Wied-Neuwied. A medium-sized species of snake, Dipsas neuwiedi may attain a snout-to-vent length (SVL) of 66 cm (26 in). Dipsas neuwiedi is found in southeastern Brazil.
The preferred natural habitats of Dipsas neuwiedi are forest and savanna, at elevations from sea level to 1,450 m (4,760 ft). Dipsas neuwiedi is arboreal and nocturnal. Dipsas neuwiedi preys upon snails and slugs. Dipsas neuwiedi is oviparous. Clutch size is about eight eggs.
Arruda, Larissa F.; Folly, Henrique; Guedes, Jhonny J.M.; Feio, Renato N. (2017). "Sibynomorphus neuwiedi (Neuwiedi's [sic] Snail-eating Snake). Chromatic Anomaly". Herpetological Review. 48 (4): 867. Barbosa, Vanessa do Nascimento; Silva Amaral, Jéssica Monique da; Santos... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Serra dos Órgãos National Park | 🇧🇷 Brazil |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | São Paulo | 🇧🇷 Brazil |
Possible
About 20% of wildlife watchers report a Neuwied's Tree Snake sighting in Serra dos Órgãos National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 9th most-seen of the 14 reptiles we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
April
In that month about 40% of wildlife watchers report a Neuwied's Tree Snake in Serra dos Órgãos National Park on a given day, against under 5% in February and May–November, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Neuwied's Tree Snake sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Only Serra dos Órgãos National Park, in our data
Serra dos Órgãos National Park is the only park on Wallace's Line with enough records to rate Neuwied's Tree Snake sightings: about 20% of wildlife watchers there report one on a given day.
Same family: Colubridae
The closest relatives of the Neuwied's Tree Snake that you can see in Serra dos Órgãos National Park (family Colubridae, Colubrid Snakes) are Brown Sipo (about 30%), Military Ground Snake (about 30%) and Neuwied's False Fer-de-lance (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Neuwied's Tree Snake is recorded against all the reptiles logged in Serra dos Órgãos National Park (5 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
