Which family is known as net-spinning caddisflies?

The family known as net-spinning caddisflies is Hydropsychidae. This group is characterized by their unique adaptation of spinning nets to capture food particles from the water. The nets are typically made of silk and are constructed in such a way that they can effectively trap small organic materials, such as algae and detritus, which the larvae feed on.

Hydropsychidae larvae are generally found in clean, well-oxygenated freshwater environments, where they can utilize their nets to filter feed. This feeding strategy not only aids in their survival but also plays a significant role in the aquatic ecosystem, as they help to process organic matter and contribute to nutrient cycling.

In contrast, the other families listed—Leptoceridae, Molannidae, and Limnephilidae—have different feeding and lifestyle adaptations. While they may also include caddisflies, their larval stages do not exhibit the same net-spinning behavior that defines the Hydropsychidae family. Understanding these distinctions is important for recognizing the diverse adaptations among freshwater insects and their ecological roles.