White-Necklace Blister Beetle

White-Necklace Blister Beetle

Epicauta segmenta

Daily sighting probability ~10% · With luck
at Big Bend National Park

In 3 days ~30% in a week ~60%

24 Verified sightings at Big Bend National Park From 2019 to 2026
24 In 1 park
September Best month
🌅 Crepuscular When it's spotted

About the White-Necklace Blister Beetle

Epicauta segmenta is a species of blister beetle in the family Meloidae. It is found in Central America and North America. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Big Bend National Park 🇺🇸 United States
~10%

More parks will be added in future updates.

Before you go

What are the chances of seeing a White-Necklace Blister Beetle in Big Bend National Park?

With luck

About 10% of wildlife watchers report a White-Necklace Blister Beetle sighting in Big Bend National Park on a given day, based on 24 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 76th most-seen of the 329 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.

When is the best time to see a White-Necklace Blister Beetle in Big Bend National Park?

September

In that month about 30% of wildlife watchers report a White-Necklace Blister Beetle in Big Bend National Park on a given day, against under 5% in October to March, the lowest months. That is one of Big Bend National Park's wettest months, with about 50 mm of rain against 10 mm in April.

What time of day is best to see a White-Necklace Blister Beetle?

Between 6 and 9 pm

Across all the parks we cover, that three-hour window holds the most White-Necklace Blister Beetle sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is most active around dawn and dusk.

Where else can you see a White-Necklace Blister Beetle?

Only Big Bend National Park, in our data

Big Bend National Park is the only park on Wallace's Line with enough records to rate White-Necklace Blister Beetle sightings: about 10% of wildlife watchers there report one on a given day.

Which relatives of the White-Necklace Blister Beetle live in Big Bend National Park?

Same genus: Epicauta

The closest relatives of the White-Necklace Blister Beetle that you can see in Big Bend National Park (genus Epicauta, Burning Blister Beetles) are Black-Striped Blister Beetle (about 20%) and Poling's Two-Toned Blister Beetle (about 10%), with each one's daily chance of a sighting.

Where does the White-Necklace Blister Beetle sighting chance come from?

GBIF citizen-science records

It is estimated from how often the White-Necklace Blister Beetle is recorded against all the insects logged in Big Bend National Park (24 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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