Be on the lookout for an especially nasty and tenacious biting insect pest – the horsefly – as it hunts for its next blood meal.Sonja Swiger, Ph.D., Texas A&M AgriLife Extension Service entomologist in the Texas A&M Department of Entomology, Stephenville, said she expects reports of horsefly infestations to increase over the coming weeks.Despite the name, horsefl ies are not host-specific to horses. They will feed opportunistically on available human and animal hosts.“Like mosquitoes, only female horse flies bite because they need the host’s blood for egg production,” Swiger said. “Horseflies only bite and feed once every few days, but ...