Which type of fly is known for their aggressive biting behavior?

The stable fly is known for its aggressive biting behavior, particularly when it comes to feeding on the blood of mammals. Unlike other flies, stable flies possess biting mouthparts that they use to pierce the skin of their hosts. This behavior is typically observed in warmer months, making them a nuisance for livestock and humans alike. Additionally, stable flies are often found in agricultural areas and near animal enclosures, where they can easily access potential hosts. Their bites can cause considerable discomfort and may lead to stress in livestock, impacting their health and productivity.

The other types of flies mentioned do not exhibit this same level of aggressiveness or biting behavior. For instance, house flies are more associated with filth and are not known to bite. Flesh flies are typically scavengers, focusing on decomposing matter, while fruit flies do not bite at all, as they primarily feed on fruit and fermenting sugars. This distinction highlights why the stable fly is the correct answer in the context of aggressive biting behavior among flies.