
1) Bristletail 2) Insect found in hot areas 3) Lives in warm moist areas 4) Thermobia domestica 5) Urban animal
Found on
https://www.crosswordclues.com/clue/firebrat

The Firebrat (Thermobia domestica, sometimes listed as Thermophila furnorum) is a small insect (typically 1–1.5 cm) similar to the Silverfish, both in the order Thysanura. Firebrats prefer higher temperatures and require some humidity, and can be found in bakeries and near boilers or furnaces. They feed on a wide variety of carbohydrates and sta...
Found on
http://en.wikipedia.org/wiki/Firebrat

(from the article `apterygote`) ...the class Insecta. The term apterygotes, therefore, has been redefined to include only those groups thought to be ancestors of pterygotesi.e., ... The firebrat (Thermobia domestica) is typically white with light and dark spots. Its life cycle and habits are similar to those of the silverfish. ......
Found on
http://www.britannica.com/eb/a-z/f/28

[
n] - lives in warm moist areas e.g. around furnaces
Found on
http://www.webdictionary.co.uk/definition.php?query=firebrat

Thysanura - the Thysanura (or three-pronged bristletails) are an Order of insects. They are wingless and possess three filaments at the end of the abdomen.
Found on
https://www.amentsoc.org/insects/glossary/begins/with/f/
Thermobia domestica noun lives in warm moist areas e.g. around furnaces
Found on
https://www.encyclo.co.uk/local/20974

a bristletail, Thermobia domestica, that lives in areas around furnaces, boilers, steampipes, etc.
Found on
https://www.infoplease.com/dictionary/firebrat
No exact match found.