Gasterophilidae, commonly known as horse bots, are a family of flies that primarily affect horses and other equines. These flies lay their eggs on the host's body, and when the larvae hatch, they burrow into the horse's stomach and intestines, where they can cause irritation and digestive issues. The life cycle of Gasterophilidae involves several stages, including egg, larva, and adult fly. Adult flies are typically seen in late summer and early fall, while the larvae can remain in the host for several months before emerging as adult flies. Proper management and veterinary care can help control these pests.