Mouse Flea vs Dog Flea

Side-by-side species comparison

Attribute Mouse Flea Dog Flea
Scientific Name Leptopsylla segnis Ctenocephalides canis
Order Siphonaptera Siphonaptera
Family Leptopsyllidae Pulicidae
Size 1.5-2 mm 2-3.5 mm
Habitat Indoors Underground
Diet Blood Feeders Blood Feeders
Regions Worldwide Europe, Asia, Africa, North America
Conservation Least Concern Least Concern

Mouse Flea

A small flea that parasitizes house mice and other small rodents worldwide. It is commonly found in rodent nests in and around human dwellings.

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Did You Know?

It can transmit murine typhus from rats to humans in domestic settings.

Dog Flea

A flea historically associated with domestic dogs but actually less common on dogs than the cat flea. Distinguished by its more rounded head profile.

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Did You Know?

Despite being called the dog flea, this species is often outnumbered on dogs by cat fleas at a ratio of ten to one.