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Note the difference in the arrangement of the tergal bristles on Ceratophyllidae and Hystrichopsyllidae fleas.
In general, fleas in the families Ceratophyllidae and Hystrichopsyllidae have two or more rows of bristles on each abdominal tergite, which are the plate-like, exoskeletal components of the flea’s abdomen.
Common Identifying Characteristics on the Abdomen of the Flea
Common Identifying Characteristics Found on the Thorax of Fleas
Flea Illustration
Head Region of Fleas Diagram
Identifying Morphologic Structures of an Adult Female Flea
Rat Flea Illustration
Mouse Flea Illustration
Diamanus montanus Illustration