Fleas are medically important species, Xenopsyalla sp. Adults commonly live for 10 days to 6 weeks
Adult size about 1-6 mm with laterally flatten body, less oval shape, light to dark brown, no wings present, 3 pairs of powerful legs, hind legs main for jumping and are covered with bristle and small spines. They can be nuisance to host. During feeding, fleas eject feces composed of semi-digested blood of previous meal. Fleas usually bite people on legs, ankle and waist. They prefer dark place and they are found sheltered among hairs, under clothing or bed.
Life cycle –