Hemeroblemma opigena
Daily sighting probability <5% · Rare
at San José

In 3 days ~10% in a week ~30%

7 Verified sightings at San José
40 In all 3 parks From 2019 to 2026
August Best month
🌙 Nocturnal When it's spotted

About the Hemeroblemma opigena

Hemeroblemma opigena is a species of moth in the family Erebidae first described by Dru Drury in 1773. The species is found from Florida to Brazil. The wingspan is about 80 mm for the females. In Florida, adults are on wing in March. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Main Ridge Forest Reserve 🇹🇹 Trinidad and Tobago
~20%
2 Big Cypress National Preserve 🇺🇸 United States
~10%
3 Everglades National Park 🇺🇸 United States
~10%

Cities Where Found

# City Country Daily sighting probability
1 San José 🇨🇷 Costa Rica
<5%

Before you go

What are the chances of seeing a Hemeroblemma opigena in San José?

Rare

Under 5% of wildlife watchers report a Hemeroblemma opigena sighting in San José on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 172nd most-seen of the 239 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.

When is the best time to see a Hemeroblemma opigena in San José?

July to November

In those months about 10% of wildlife watchers report a Hemeroblemma opigena in San José on a given day, against under 5% in December to June, the lowest months. Those are among San José's wettest months, with about 230 mm of rain a month against 20 mm in February.

What time of day is best to see a Hemeroblemma opigena?

Between 9 pm and midnight

Across all the parks we cover, that three-hour window holds the most Hemeroblemma opigena sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.

Where else can you see a Hemeroblemma opigena?

Only San José, in our data

San José is the only city on Wallace's Line with enough records to rate Hemeroblemma opigena sightings: under 5% of wildlife watchers there report one on a given day.

Which relatives of the Hemeroblemma opigena live in San José?

Same family: Erebidae

The closest relatives of the Hemeroblemma opigena that you can see in San José (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Black Witch (about 20%), Eudesmia menea (about 20%) and Turuptiana obliqua (about 10%), with each one's daily chance of a sighting.

Where does the Hemeroblemma opigena sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Hemeroblemma opigena is recorded against all the insects logged in San José (7 verified sightings), 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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