Green Stink Bug

Green Stink Bug

Chinavia hilaris

Daily sighting probability ~10% · With luck
at Great Smoky Mountains National Park

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

61 Verified sightings at Great Smoky Mountains National Park From 2019 to 2026
156 In all 4 parks
October Best month
☀️ Diurnal When it's spotted

About the Green Stink Bug

The green stink bug or green soldier bug (Chinavia hilaris) is a stink bug of the family Pentatomidae. The species was previously placed in the genus Acrosternum but has been classified in the genus Chinavia in the more recent literature (e.g., Schwertner and Grazia, 2006). However, the Entomological Society of America has not officially recognized this change despite this shift in scientific naming.

The green stink bug's color is typically bright green, with narrow yellow, orange, or reddish edges. It is a large, shield-shaped bug with an elongate, oval form and a length between 13 and 18 mm. It can be differentiated from the species Nezara viridula by its black outermost three antennal segments. Its anterolateral (= in front and away from the middle) pronotal margin is rather straight and not strongly arced, such as in Chinavia pensylvanica.

Both adults and nymphs have large stink glands on the underside of the thorax, extending more than halfway to the edge of the metapleuron. They discharge large amounts of this foul-smelling liquid when disturbed. This liquid, dried and pulverized, was once used at an industrial level to reinforce the smell... Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Shenandoah National Park 🇺🇸 United States
~20%
2 Great Smoky Mountains National Park 🇺🇸 United States
~10%
3 Acadia National Park 🇺🇸 United States
<5%
4 Cumbres de Monterrey National Park 🇲🇽 Mexico
<5%

Cities Where Found

# City Country Daily sighting probability
1 Dallas 🇺🇸 United States
~10%
2 Austin 🇺🇸 United States
~10%
3 Boston 🇺🇸 United States
~10%
4 Montreal 🇨🇦 Canada
~10%
5 Washington 🇺🇸 United States
~10%
6 Seattle 🇺🇸 United States
~10%
7 Baltimore 🇺🇸 United States
~10%
8 Philadelphia 🇺🇸 United States
~10%
9 Toronto 🇨🇦 Canada
~10%
10 San Antonio 🇺🇸 United States
~10%

Before you go

What are the chances of seeing a Green Stink Bug in Great Smoky Mountains National Park?

With luck

About 10% of wildlife watchers report a Green Stink Bug sighting in Great Smoky Mountains National Park on a given day, based on 61 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 83rd most-seen of the 822 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 Green Stink Bug in Great Smoky Mountains National Park?

April and September–November

In those months about 20% of wildlife watchers report a Green Stink Bug in Great Smoky Mountains National Park on a given day, against under 5% in December to February, the lowest months.

What time of day is best to see a Green Stink Bug?

Between 1 and 4 pm

Across all the parks we cover, that three-hour window holds the most Green Stink 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 Great Smoky Mountains National Park the best place to see a Green Stink Bug?

2nd of 4

Of the 4 parks where we can rate Green Stink Bug sightings, Great Smoky Mountains National Park ranks 2nd at about 10%. The best odds are in Shenandoah National Park (United States, about 20%).

Where does the Green Stink Bug sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Green Stink Bug is recorded against all the insects logged in Great Smoky Mountains National Park (61 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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