The firebrat, Thermobia domestica (Packard), is similar to silverfish, but is mottled brown.


Firebrats prefer temperatures over 90 o F and therefore are often found near ovens, dryers or hot water heaters. Eggs are laid in batches with an average of 50 per batch.


Under good conditions, the eggs hatch within 13 days and the nymphs begin to their development.


Firebrats may molt 50 to 60 times during its lifespan which can be up to 2 years in warm areas.