Many kinds of fleas

Danish flea species can be divided into groups according to the host animals: Human fleas, fleas on hedgehog, fleas on rabbits, bird fleas, fleas on bats, fleas on squirrels, fleas on mice, fleas on rats, fleas on foxes, fleas on badgers, dog fleas and cat fleas. Of these fleas, human fleas, hedgehog fleas, bird fleas, dog fleas and cat fleas that are the biggest nuisance to humans. Based on the circumstances of the findings and the season, it is often possible to determine the fleas’ origin. Each species of fleas must be controlled in their individually, and it is therefore important to know where they originate from.

Human flea

Human flea

Hedgehog fleas

Hedgehog fleas

Bird flea

Bird flea

Dog flea

Dog flea

Cat flea

Cat flea

Fig. 59. Flea species are (not exclusively) known by the thorns on their heads and in the back of the neck, i.e. the dorsal trailing edge of the thorax. Specific characters vary only slightly so if the animals found differ from the shown animals, or finding circumstances does not fit the species, species identification tools must be used. Bird fleas can be mistaken for squirrel fleas (from mink farms), rat fleas, etch. (the drawings are of “Smit” and are taken from “Danmarks Fauna” vol. 60).