50_96_lores

Differences in Ceratophyllidae and Hystrichopsyllidae Fleas

50_96_lores

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.