Long-Jawed Longhorn Beetle

Long-Jawed Longhorn Beetle

Trachyderes mandibularis

Daily sighting probability <5% · Rare
at Houston

In 3 days ~10% in a week ~20%

11 Verified sightings at Houston
27 In all 2 parks From 2019 to 2026
September Best month
☀️ Diurnal When it's spotted

About the Long-Jawed Longhorn Beetle

Dendrobias mandibularis is a species of beetle in the family Cerambycidae. It was described by Dupont in 1834. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Saguaro National Park 🇺🇸 United States
~10%
2 Everglades National Park 🇺🇸 United States
<5%

Cities Where Found

# City Country Daily sighting probability
1 Guadalajara 🇲🇽 México
~10%
2 Orlando 🇺🇸 United States
<5%
3 Houston 🇺🇸 United States
<5%
4 Miami 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Long-Jawed Longhorn Beetle in Houston?

Rare

Under 5% of wildlife watchers report a Long-Jawed Longhorn Beetle sighting in Houston on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 734th most-seen of the 1057 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.

When is the best time to see a Long-Jawed Longhorn Beetle in Houston?

Any time of year

In every month with enough records, under 5% of wildlife watchers report a Long-Jawed Longhorn Beetle in Houston on a given day, so our monthly data shows no clear season.

What time of day is best to see a Long-Jawed Longhorn Beetle?

Between 10 am and 1 pm

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

Is Houston the best place to see a Long-Jawed Longhorn Beetle?

3rd of 4

Of the 4 cities where we can rate Long-Jawed Longhorn Beetle sightings, Houston ranks 3rd at under 5%. The best odds are in Guadalajara (México, about 10%) and Orlando (United States, under 5%).

Where does the Long-Jawed Longhorn Beetle sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Long-Jawed Longhorn Beetle is recorded against all the insects logged in Houston (11 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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