Micruroides euryxanthus
Silhouette: SeismicShrimp · PhyloPic
In 3 days ~20% in a week ~40%
Micruroides is a genus of venomous New World coral snake in the family Elapidae. The genus is monotypic, containing only the species Micruroides euryxanthus. Micruroides euryxanthus, commonly known as the Sonoran coral snake, western coral snake, Arizona coral snake, and coralillo in Mexican Spanish, is native to the southwestern United States and adjacent northwestern Mexico.
Adults of Micruroides euryxanthus are 11–24 inches (28–61 centimetres) in total length (tail included). The color pattern consists of broad, alternating rings of red and black, separated by narrower rings of white or yellow. Markings become paler as they reach the belly. The head is black, the black extending to the posterior border of the parietals.
The smooth dorsal scales are arranged in 15 rows at midbody. The ventrals number 214–241. The anal plate is divided. The subcaudals number 21–34, and are divided (paired). Micruroides euryxanthus resembles Micrurus fulvius. However, the white or yellow rings are broader than in M. fulvius, and there are fewer black rings on the tail, usually only 2. Also, the first ring on the body (the first ring behind the white or yellow ring on the back of the... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Saguaro National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Nanning Zoo | 🇨🇳 China |
No species of the same family or order lives in Saguaro National Park, so these are its closest relatives here: other reptiles.
With luck
About 10% of wildlife watchers report a Sonoran Coralsnake sighting in Saguaro National Park on a given day, based on 18 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 38th most-seen of the 51 reptiles we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
May and July–October
In those months about 10% of wildlife watchers report a Sonoran Coralsnake in Saguaro National Park on a given day, against under 5% in June and November–April, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Sonoran Coralsnake sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Saguaro National Park, in our data
Saguaro National Park is the only park on Wallace's Line with enough records to rate Sonoran Coralsnake sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Sonoran Coralsnake is recorded against all the reptiles logged in Saguaro National Park (18 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.
