Alurnus ornatus
In 3 days ~20% in a week ~40%
Alurnus ornatus is a species of beetle in the family Chrysomelidae that can grow 19–27 millimeters in length. It is found in Colombia, Costa Rica, Nicaragua, and Panamá. The adult beetles have head, antennae, scutellum, legs, and venter black. The pronotum is red with black apical and basal margins, while the elytra are mostly yellow except for black spots and apical quarters.
Adults of this species have been collected from Chamaedorea palms. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Braulio Carrillo National Park | 🇨🇷 Costa Rica | |
| 2 | Tenorio Volcano National Park | 🇨🇷 Costa Rica | |
| 3 | Tortuguero National Park | 🇨🇷 Costa Rica | |
| 4 | Arenal Volcano National Park | 🇨🇷 Costa Rica |
With luck
About 10% of wildlife watchers report an Alurnus ornatus 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 152nd 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 40%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report an Alurnus ornatus in Arenal Volcano National Park on a given day, against under 5% in September–October and December–March, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Alurnus ornatus sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 4 parks where we can rate Alurnus ornatus sightings, Arenal Volcano National Park ranks 4th at about 10%, level with the leaders once rounded. The best odds are in Braulio Carrillo National Park (Costa Rica, about 10%), Tenorio Volcano National Park (Costa Rica, about 10%) and Tortuguero National Park (Costa Rica, about 10%).
Same family: Chrysomelidae
The closest relatives of the Alurnus ornatus 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 Alurnus ornatus 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.
