Small insects are a diverse group of invertebrates that can range in size from microscopic to several centimeters. Common examples of small insects include midges (5 letters), gnats (4 letters), fleas (4 letters), ants (3 letters), mites (4 letters) and earwigs (6 letters). These insects can be found in a variety of habitats, including forests, deserts, grasslands, and even urban areas. They play an important role in the environment by providing food for other animals, pollinating plants, and helping to break down organic matter.