Death Watch Barklouse vs Texas Cave Silverfish
Side-by-side species comparison
| Attribute | Death Watch Barklouse | Texas Cave Silverfish |
|---|---|---|
| Scientific Name | Trogium pulsatorium | Texoreddellia texensis |
| Order | Psocoptera | Zygentoma |
| Family | Trogiidae | Nicoletiidae |
| Size | 1.5-2 mm | 8-15 mm |
| Habitat | Indoors | Caves |
| Diet | Fungus Feeders | Fungus Feeders |
| Regions | Europe, North America | United States |
| Conservation | Least Concern | Vulnerable |
Death Watch Barklouse
A common indoor booklouse known for producing a quiet tapping sound by striking its abdomen against surfaces. It is found in old buildings and museums.
Did You Know?
Its tapping sound was historically mistaken for a death omen, hence its common name.
Texas Cave Silverfish
A troglobitic silverfish endemic to limestone caves in central Texas. It has no eyes and a pale, elongated body.
Did You Know?
The genus Texoreddellia includes several species spread across 160,000 square kilometers of Texas caves.