Libellula herculea
In 3 days ~30% in a week ~60%
Libellula herculea is a species of Libellula found in Argentina, Bolivia, Brazil, Belize, Colombia, Costa Rica, Ecuador, French Guiana, Guatemala, Guyana, Honduras, Mexico, Nicaragua, Panama, Peru, Paraguay, El Salvador, and Venezuela Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Brownsberg Nature Park | 🇸🇷 Suriname | |
| 2 | Tenorio Volcano National Park | 🇨🇷 Costa Rica | |
| 3 | Chagres National Park | 🇵🇦 Panama | |
| 4 | Gandoca-Manzanillo Wildlife Refuge | 🇨🇷 Costa Rica | |
| 5 | Piedras Blancas National Park | 🇨🇷 Costa Rica | |
| 6 | Arenal Volcano National Park | 🇨🇷 Costa Rica | |
| 7 | Braulio Carrillo National Park | 🇨🇷 Costa Rica | |
| 8 | Chirripó National Park | 🇨🇷 Costa Rica | |
| 9 | Corcovado National Park | 🇨🇷 Costa Rica | |
| 10 | Manuel Antonio National Park | 🇨🇷 Costa Rica | |
| 11 | La Amistad International Park (Panama) | 🇵🇦 Panama |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Medellín | 🇨🇴 Colombia |
With luck
About 10% of wildlife watchers report a Hercules Skimmer sighting in Arenal Volcano National Park on a given day, based on 39 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 22nd most-seen of the 302 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
April
In that month about 30% of wildlife watchers report a Hercules Skimmer in Arenal Volcano National Park on a given day, against under 5% in October and December–January, the lowest months. That is one of Arenal Volcano National Park's driest months, with about 140 mm of rain against 500 mm in November.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Hercules Skimmer sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
6th of 11
Of the 11 parks where we can rate Hercules Skimmer sightings, Arenal Volcano National Park ranks 6th at about 10%. The best odds are in Brownsberg Nature Park (Suriname, about 30%), Tenorio Volcano National Park (Costa Rica, about 20%) and Chagres National Park (Panama, about 20%).
Same family: Libellulidae
The closest relatives of the Hercules Skimmer that you can see in Arenal Volcano National Park (family Libellulidae, Skimmers) are Brown Setwing (about 10%), Carmine Skimmer (about 10%) and Forest Pond Dasher (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Hercules Skimmer is recorded against all the insects logged in Arenal Volcano National Park (39 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.
