Blackfly is a common name for several species of small, biting insects. These pests are known to attack plants and humans, causing irritation and discomfort. Despite their small size, they can be a major nuisance in outdoor areas during the spring and summer months. Common synonyms for blackfly include "gnat," "midge," and "no-see-ums." These terms are often used interchangeably to describe small, flying insects that are a bother to people and plants alike. Other possible synonyms for blackfly might include "biting midge," "punkie," or "sandfly," depending on the specific species and geographic location.