Firebrat vs Water Strider

Side-by-side species comparison

Attribute Firebrat Water Strider
Scientific Name Thermobia domestica Gerris lacustris
Order Blattodea Hemiptera
Family Lepismatidae Gerridae
Size 10-15 mm 8-10 mm
Habitat Indoors Ponds & Lakes
Diet Omnivores Omnivores
Regions Worldwide Europe, Asia
Conservation Least Concern Least Concern

Firebrat

A heat-loving relative of the silverfish that thrives at temperatures of 37-39C. Found near furnaces, boilers, and bakeries. One of the most thermophilic household insects.

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Did You Know?

Firebrats seek out the hottest spots in buildings — they have been found living happily inside commercial bread ovens and next to industrial furnaces at nearly 40C.

Water Strider

Walks on water using hydrophobic leg hairs that trap air. Each leg has thousands of microscopic grooved hairs. Can detect prey vibrations on the water surface from centimeters away.

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Did You Know?

Water striders have over 1,000 microscopic hairs per mm on their legs — each hair has nano-grooves that trap air, making their feet essentially unwettable.