Figures 2.15

Figures 2.15. Head and mouthparts of a human flea, Pulex irritans (Siphonaptera: Pulicidae):
(a) lateral view of head; (b) transverse section through mouthparts. The plane of the transverse section is indicated by the dashed line in (a). (After Snodgrass 1946; Herms & James 1961)