Firebrat

Firebrat

Thermobia domestica

Daily sighting probability ~10% · With luck
at Mesa

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

11 Verified sightings at Mesa
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 Mesa?

With luck

About 10% of wildlife watchers report a Firebrat sighting in Mesa on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 139th most-seen of the 232 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 Firebrat in Mesa?

April, June, August–October and December

In those months about 10% of wildlife watchers report a Firebrat in Mesa on a given day, against under 5% in January–March, May, July and November, the lowest months.

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 Mesa the best place to see a Firebrat?

Among the best

Of the 8 cities where we can rate Firebrat sightings, Mesa ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Las Vegas (United States, about 10%).

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 Mesa (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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