Monkey Slug Moth

Monkey Slug Moth

Phobetron hipparchia

Daily sighting probability ~10% · With luck
at Arenal Volcano National Park

In 3 days ~20% in a week ~40%

9 Verified sightings at Arenal Volcano National Park From 2019 to 2026
31 In all 4 parks
August Best month
☀️ Diurnal When it's spotted

About the Monkey Slug Moth

Phobetron hipparchia, the monkey slug, is a moth of the family Limacodidae. It is found in Mexico, Panama, Ecuador, Colombia, Venezuela, the Guianas, Brazil and Argentina. The larvae feed on Gliricidia sepium. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Arenal Volcano National Park 🇨🇷 Costa Rica
~10%
2 La Amistad International Park (Panama) 🇵🇦 Panama
<5%
3 Parque Natural Metropolitano 🇵🇦 Panama
<5%
4 Tijuca National Park 🇧🇷 Brazil
<5%

Cities Where Found

# City Country Daily sighting probability
1 Asuncion 🇵🇾 Paraguay
~20%
2 Manaus 🇧🇷 Brazil
~10%
3 Medellín 🇨🇴 Colombia
~10%
4 Montevideo 🇺🇾 Uruguay
~10%
5 Rio de Janeiro 🇧🇷 Brazil
~10%
6 San José 🇨🇷 Costa Rica
~10%
7 Porto Alegre 🇧🇷 Brazil
~10%
8 Campinas 🇧🇷 Brazil
~10%
9 Panama City 🇵🇦 Panama
~10%
10 São Paulo 🇧🇷 Brazil
~10%

Before you go

What are the chances of seeing a Monkey Slug Moth in Arenal Volcano National Park?

With luck

About 10% of wildlife watchers report a Monkey Slug Moth 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.

When is the best time to see a Monkey Slug Moth in Arenal Volcano National Park?

August

In that month about 30% of wildlife watchers report a Monkey Slug Moth in Arenal Volcano National Park on a given day, against under 5% in July and September–May, the lowest months.

What time of day is best to see a Monkey Slug Moth?

Between 9 am and noon

Across all the parks we cover, that three-hour window holds the most Monkey Slug Moth sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Where does the Monkey Slug Moth sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Monkey Slug Moth 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.

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