Walterianella humeralis
In 3 days ~20% in a week ~30%
Walterianella humeralis is a species of beetle of the family Chrysomelidae. This species is found in Costa Rica and Panama. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Arenal Volcano National Park | 🇨🇷 Costa Rica |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Walterianella humeralis sighting in Arenal Volcano National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 178th most-seen of the 302 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
August
In that month about 20% of wildlife watchers report a Walterianella humeralis in Arenal Volcano National Park on a given day, against under 5% in June–July, September–October and December–February, the lowest months.
Between 6 and 9 pm
Across all the parks we cover, that three-hour window holds the most Walterianella humeralis 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 Arenal Volcano National Park, in our data
Arenal Volcano National Park is the only park on Wallace's Line with enough records to rate Walterianella humeralis sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Chrysomelidae
The closest relatives of the Walterianella humeralis that you can see in Arenal Volcano National Park (family Chrysomelidae, Leaf Beetles) are Omophoita aequinoctialis (about 10%), Ringed Tortoise Beetle (about 10%) and Omaspides convexicollis (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Walterianella humeralis is recorded against all the insects logged in Arenal Volcano National Park (9 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.
