Kärpäslajit

Kärpäslajit, or mayflies, are an order of insects belonging to the insect order Ephemeroptera. They are characterized by their aquatic larvae and winged adults, which are often seen in freshwater environments. Mayflies are known for their short lifespan, with adults typically living only a few hours to a few days, during which they focus on reproduction. This order includes over 2,500 described species worldwide.

The larvae, known as nymphs, are aquatic and spend most of their lives underwater, feeding on algae, bacteria, and other small organisms. They have a unique respiratory system that involves gills and a tube-like structure called a siphon. Nymphs undergo several molts, or molts, as they grow, eventually emerging from the water as adults.

Adult mayflies are delicate, with long, delicate wings and a slender body. They do not feed as adults and have reduced mouthparts. The primary purpose of the adult stage is to reproduce. Mayflies are known for their distinctive flight patterns, often seen as they emerge from the water's surface, fluttering briefly before landing on vegetation or the water's edge.

Mayflies play an important role in aquatic ecosystems. Their larvae help in nutrient cycling by consuming organic matter and serving as food for fish and other aquatic organisms. Adult mayflies, although short-lived, provide a vital food source for many animals, including birds, bats, and fish. The order Ephemeroptera is further divided into several families, each with its unique characteristics and adaptations to different environments.