Juvenile male Ecuadorian mantled howler (Alouatta palliata aequatorialis) with<unk>  parasites<unk> es, also known as warble flies, heel flies, and gadflies, are a family of flies technically known as the Oestridae. Their larvae are internal parasites of mammals, some species growing in the host's flesh and others within the gut. Dermatobia hominis is the only species of<unk>  known to parasitize humans routinely, though other species of flies cause myiasis in humans.
Botfly
Pinworm 
Deer fly
Head louse
Wellbee
Hookworm
Body louse
Crab louse