Signs
for Cat Flea
The pet usually tips you off first: a cat or dog that will not stop scratching, nibbling, or grooming is often reacting to fleas you have not yet seen. Look in the coat and bedding for gritty dark flecks of flea dirt (dried blood the adults excrete). For a quick field test, pull light-colored socks over your shins and walk slowly through the pet's nap spots — any fleas present leap onto the pale cloth. Source: https://ask.ifas.ufl.edu/publication/IN137 Source: http://ipm.ucanr.edu/PMG/PESTNOTES/pn7419.html