Philodryas olfersii
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~40% in a week ~70%
Philodryas olfersii is a species of venomous snake in the subfamily Dipsadinae of the family Colubridae. The species is endemic to South America. Common names for Philodryas olfersii include Lichtenstein's green racer, South American green racer, and eastern green whiptail,
The specific name, olfersii, is in honor of German naturalist Ignaz von Olfers. Philodryas olfersii is native to southern South America, including northern Argentina, Brazil, Bolivia, and northwestern Paraguay. Philodryas olfersii reaches 1 to 1.5 meters (about 40 to 60 inches) in maximum total length (including tail).
Dorsally, it is green in color; ventrally, it is yellowish. The dorsal scales are smooth, without apical pits, and are arranged in 19 rows at midbody. Philodryas olfersii can be found in many habitat types, including the Cerrado, Caatinga, forest, forest transition, and restinga. It has been found at altitudes from sea level to 1,700 m (5,600 ft). The species Philodryas olfersii is often arboreal, but it also forages on the ground. It is diurnal, though it has been observed mating late in the evening... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Iguazú National Park | 🇦🇷 Argentina | |
| 2 | Iguaçu National Park | 🇧🇷 Brazil |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Zoológico de Brasília | 🇧🇷 Brazil | |
| 2 | Ménagerie du Jardin des Plantes | 🇫🇷 France |
Possible
About 20% of wildlife watchers report a Lichtenstein's Green Racer sighting in Fortaleza on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 4th most-seen of the 12 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.
June and October
In those months about 30% of wildlife watchers report a Lichtenstein's Green Racer in Fortaleza on a given day, against under 5% in March and November–January, the lowest months. Those are among Fortaleza's driest months, with about 50 mm of rain a month against 240 mm in April.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Lichtenstein's Green Racer sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 cities where we can rate Lichtenstein's Green Racer sightings, Fortaleza has the highest daily chance: about 20%. Next come Recife (Brazil, about 10%).
Same family: Colubridae
The closest relatives of the Lichtenstein's Green Racer that you can see in Fortaleza (family Colubridae, Colubrid Snakes) are Gomes' Burrowing Snake (about 10%), Brown Vinesnake (about 10%) and Brazilian False Coral Snake (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Lichtenstein's Green Racer is recorded against all the reptiles logged in Fortaleza (10 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.
