Lizards
It is very unlikely that you have never caught a lizard in the act of hunting insects. These small, insectivorous reptiles are found almost anywhere in the world. Instead of a long chase, lizards tend to sit around waiting for prey to approach them and launch a surprise attack.
Lizards are natural insectivores. They move from place to place in search of insects such as snails, spiders, caterpillars, and other crawling insects that pass by them. Along with these insects, lizards also eat flying insects such as crickets, mosquitoes, termites, and flies. Otherwise, where there are no insects, the lizard eats fruits and plants as an alternative. These foods also keep them hydrated.
Like spiders, lizards eat larvae, pupae, and adult fleas. They catch fleas jumping or crawling. Some lizards swallow their prey whole. While other species bite their prey before eating them.
Often seen clinging to walls, these predators of fleas that eat fleas are known to move from house to house in search of insects. And one of the insects they have a great appetite for is fleas. Whether it's a larva, pupae, or an adult flea, the lizard won't mind devouring it.