Firebrat

Firebrat

Thermobia domestica

Daily sighting probability ~10% · With luck
at Las Vegas

In 3 days ~20% in a week ~40%

18 Verified sightings at Las Vegas
5 In 1 park From 2019 to 2026
April Best month
☀️🌙 Day & Night When it's spotted

About the Firebrat

The firebrat (Thermobia domestica) is a small insect (typically 1–1.5 cm) in the order Zygentoma. They look similar to the related silverfishes, but are distinguished by their habit of living in warm regions of homes, of which they get their name.

Firebrats prefer relatively warm temperatures (36–39 °C) and require some humidity. They are commonly found indoors near heat sources such as furnaces and boilers. They feed on a wide variety of carbohydrates and starches that are also protein sources such as dog food, flour and book bindings. Firebrats also practice cannibalism, eating the eggs, exuviae and corpses of other firebrats. They are distributed throughout most parts of the world and are normally found outdoors under rocks, plant litter, and in similar environments, but are also often found indoors where they are considered pests. They do not cause major damage, but they can contaminate food, damage paper goods, and stain clothing. Otherwise they are mostly harmless. Due to the fact that, in nature, they tend to live in moist environments, the exoskeleton of firebrats is capable of both retaining and excreting water depending on the ambient temperature in their... Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Death Valley National Park 🇺🇸 United States
~10%

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Las Vegas 🇺🇸 United States
~10%
2 Mesa 🇺🇸 United States
~10%
3 Phoenix 🇺🇸 United States
<5%
4 Montreal 🇨🇦 Canada
<5%
5 Vancouver 🇨🇦 Canada
<5%
6 Dallas 🇺🇸 United States
<5%
7 Toronto 🇨🇦 Canada
<5%
8 New York City 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Firebrat in Las Vegas?

With luck

About 10% of wildlife watchers report a Firebrat sighting in Las Vegas on a given day, based on 18 verified sightings from GBIF citizen-science data. It is the 42nd most-seen of the 111 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.

When is the best time to see a Firebrat in Las Vegas?

February to December

In those months about 10% of wildlife watchers report a Firebrat in Las Vegas on a given day, against under 5% in January, the lowest month.

What time of day is best to see a Firebrat?

Between 7 and 10 am

Across all the parks we cover, that three-hour window holds the most Firebrat sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.

Is Las Vegas the best place to see a Firebrat?

Yes

Of the 8 cities where we can rate Firebrat sightings, Las Vegas has the highest daily chance: about 10%. Next come Mesa (United States, about 10%) and Phoenix (United States, under 5%).

Where does the Firebrat sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Firebrat is recorded against all the insects logged in Las Vegas (18 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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