Chauliognathus transversus silhouette

Silhouette: Andy Wilson · PhyloPic

Chauliognathus transversus

Chauliognathus transversus

Daily sighting probability <5% · Rare
at Big Bend National Park

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

5 Verified sightings at Big Bend National Park From 2019 to 2026
5 In 1 park
October Best month
☀️ Diurnal When it's spotted

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Big Bend National Park 🇺🇸 United States
<5%

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 São Paulo 🇧🇷 Brazil
<5%

Before you go

What are the chances of seeing a Chauliognathus transversus in Big Bend National Park?

Rare

Under 5% of wildlife watchers report a Chauliognathus transversus sighting in Big Bend National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 283rd most-seen of the 329 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 Chauliognathus transversus in Big Bend National Park?

October

In that month about 20% of wildlife watchers report a Chauliognathus transversus in Big Bend National Park on a given day, against under 5% in December to September, the lowest months.

What time of day is best to see a Chauliognathus transversus?

Between 7 and 10 am

Across all the parks we cover, that three-hour window holds the most Chauliognathus transversus sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.

Where else can you see a Chauliognathus transversus?

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 Chauliognathus transversus sightings: under 5% of wildlife watchers there report one on a given day.

Which relatives of the Chauliognathus transversus live in Big Bend National Park?

Same genus: Chauliognathus

The closest relatives of the Chauliognathus transversus that you can see in Big Bend National Park (genus Chauliognathus) are Chauliognathus limbicollis (about 10%) and Lewis' Soldier Beetle (about 10%), with each one's daily chance of a sighting.

Where does the Chauliognathus transversus sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Chauliognathus transversus is recorded against all the insects logged in Big Bend National Park (5 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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