Torporididae

Torporididae is a family of small, often minute, aquatic insects belonging to the order Ephemeroptera, commonly known as mayflies. The family includes two genera, Torporidia and Torporidina, with a total of about 10 species. These insects are characterized by their small size, typically ranging from 2 to 4 millimeters in length, and their delicate, translucent wings.

Torporididae are found in freshwater habitats worldwide, including streams, rivers, and ponds. They are known for their unique life cycle, which includes a resting stage called diapause. During this stage, the nymphs enter a state of dormancy, often in response to environmental conditions such as low temperatures or drought. This adaptation allows them to survive harsh conditions and emerge as adults when conditions improve.

The adults of Torporididae are short-lived, typically living for only a few days. They are small, with translucent wings that are often held over the body. The males have a pair of cerci, which are used for grasping the females during mating. The females lay their eggs in the water, and the nymphs hatch and undergo several instars before entering diapause.

Torporididae play an important role in freshwater ecosystems as a food source for various aquatic predators, including fish and other insects. Their unique life cycle and adaptations make them an interesting subject for study in the field of entomology.