Western Leaf-Footed Bug

Western Leaf-Footed Bug

Leptoglossus clypealis

Daily sighting probability ~20% · Possible
at Big Bend National Park

In 3 days ~50% in a week ~80%

65 Verified sightings at Big Bend National Park From 2019 to 2026
169 In all 5 parks
March Best month
☀️ Diurnal When it's spotted

About the Western Leaf-Footed Bug

Leptoglossus clypealis, the western leaf-footed bug, is a species of leaf-footed bug in the family Coreidae. It is found in Central America and North America. Adult L. clypealis are 18–19 millimetres (0.71–0.75 in) in length. They are brown with flared, leaf-like expansions near their feet and a pale band across their wings.

L. clypealis is commonly found on juniper, but can be a pest to agricultural crops. In the 1980s, Hasan Bolkan discovered that the leaf-footed bug was a cause of lesions on commercially produced pistachio crops. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Big Bend National Park 🇺🇸 United States
~20%
2 Joshua Tree National Park 🇺🇸 United States
~20%
3 Guadalupe Mountains National Park 🇺🇸 United States
~20%
4 Grand Canyon National Park 🇺🇸 United States
~10%
5 Saguaro National Park 🇺🇸 United States
<5%

Cities Where Found

# City Country Daily sighting probability
1 Austin 🇺🇸 United States
~10%
2 Las Vegas 🇺🇸 United States
~10%
3 Salt Lake City 🇺🇸 United States
~10%
4 Dallas 🇺🇸 United States
~10%
5 Sacramento 🇺🇸 United States
~10%
6 Denver 🇺🇸 United States
~10%
7 Mesa 🇺🇸 United States
~10%
8 San Antonio 🇺🇸 United States
<5%
9 Phoenix 🇺🇸 United States
<5%
10 Baltimore 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Western Leaf-Footed Bug in Big Bend National Park?

Possible

About 20% of wildlife watchers report a Western Leaf-Footed Bug sighting in Big Bend National Park on a given day, based on 65 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 26th most-seen of the 329 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.

When is the best time to see a Western Leaf-Footed Bug in Big Bend National Park?

March

In that month about 40% of wildlife watchers report a Western Leaf-Footed Bug in Big Bend National Park on a given day, against under 5% in January and June–July, the lowest months.

What time of day is best to see a Western Leaf-Footed Bug?

Between 11 am and 2 pm

Across all the parks we cover, that three-hour window holds the most Western Leaf-Footed Bug sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Is Big Bend National Park the best place to see a Western Leaf-Footed Bug?

Yes

Of the 5 parks where we can rate Western Leaf-Footed Bug sightings, Big Bend National Park has the highest daily chance: about 20%. Next come Joshua Tree National Park (United States, about 20%) and Guadalupe Mountains National Park (United States, about 20%).

Where does the Western Leaf-Footed Bug sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Western Leaf-Footed Bug is recorded against all the insects logged in Big Bend National Park (65 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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