Nematocera is a suborder of insects that includes various types of flies, such as mosquitoes and midges. These insects are characterized by their long, slender bodies and delicate, elongated antennae. Nematocera are typically found in moist environments, where they often breed in water. Many species within the Nematocera suborder are known for their role in ecosystems, serving as pollinators and as a food source for other animals. Some, like mosquitoes, can also be pests, as they are known to bite and can transmit diseases to humans and animals.