Forest Barklouse vs Northern Rat Flea

Side-by-side species comparison

Attribute Forest Barklouse Northern Rat Flea
Scientific Name Caecilius fuscopterus Nosopsyllus fasciatus
Order Psocoptera Siphonaptera
Family Caeciliusidae Ceratophyllidae
Size 2-3 mm 2-3 mm
Habitat Woodlands Woodlands
Diet Herbivores Blood Feeders
Regions Europe Europe, North America, Asia
Conservation Least Concern Least Concern

Forest Barklouse

A common bark louse found on the bark and foliage of trees across Europe. It has distinctive dark-bordered wings.

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Did You Know?

It is frequently found on evergreen trees and shrubs in gardens.

Northern Rat Flea

A flea of the Norway rat found in temperate climates, capable of transmitting murine typhus. It has a distinctive pronotal comb of spines.

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Did You Know?

This flea thrives in the cool conditions of sewers and basements, making it a persistent pest in urban rat populations.