Here's a quote from a great Web site on tabanids (horseflies). "When the fly emerges from its pupal case females will seek a blood meal, whilst the males feed on nectar. The next priority for a newly emerged fly is to mate. This usually takes place during the early hours of the morning. Males come together in swarms above the forest canopy and females are attracted to these swarms. Females enter these dipteran "lekking" sites and copulation is initiated in the air, the act is completed on the ground and takes approximately five minutes." If you're interested, there's a lot more at this webiste: http://www.roberth.u-net.com/horseflies.htm#lifecycle
Well first they mate but I'll give you a life cycle.
Adult horses mate. The mare becomes pregnant and after a while a foal is born. Then the foal grows to an adult, and there you go back to the beginning of the life cycle.
They reproduce sexually, similar to humans.
Horsefly reproductive practices vary from species to species. Fertilization is external, and eggs are laid on surfaces close to water. Larvae hatch from the eggs, and the larvae will later pupate and undergo complete metamorphosis to turn into adult horseflies.
Horses reproduce by the stallion almost 'mounting' the mare. However, when stallions are gelded they can not breed. They become geldings. Some stallions that are not gelded properly have the 'urge' to breed. These are called 'rigs'. They may try to mount other geldings, or mares, but of course the intercourse can never be completed.
Sex
Horseflies are among the world's largest flies. They belong to the tabanidae family. Horseflies can be as large as 1 ¼ inches in length. So, horseflies can be up to 3.175 cm long.
In Mexico and china
Insects
People call horseflies a horsefly because they are huge. These flies are much bigger insects than the housefly for example.
Horseflies do not live in holes. These insects live near water. A female horsefly lays eggs on plants or near water.
horse flys eat horses
The plural form of horsefly is horseflies.
Yes
usally around 5 or later
yes because they may eggs on it
Sparrows and Swallows eat horse flies
No, but horseflies do & look the same-just bigger.