Flea

Found globally; typically live on the bodies of warm-blooded hosts or in their nests/bedding.

Hematophagous; adults feed exclusively on the blood of mammals and birds using piercing-sucking mouthparts.

Flightless but capable of jumping long distances. They undergo complete metamorphosis: egg, larva, pupa, and adult.

Significant pests; their bites cause itching and dermatitis. They can transmit diseases such as plague, typhus, and serve as intermediate hosts for tapeworms.