Dipsas neuwiedi
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~10% in a week ~20%
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 |
Rare
Under 5% of wildlife watchers report a Neuwied's Tree Snake sighting in São Paulo on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 20th most-seen of the 23 reptiles we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
February and November
In those months about 10% of wildlife watchers report a Neuwied's Tree Snake in São Paulo on a given day, against under 5% in March–October and December–January, the lowest months. Those are among São Paulo's wettest months, with about 160 mm of rain a month against 35 mm in August.
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 São Paulo, in our data
São Paulo is the only city on Wallace's Line with enough records to rate Neuwied's Tree Snake sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Neuwied's Tree Snake is recorded against all the reptiles logged in São Paulo (6 verified sightings), 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.
