Which family of caddisflies is referred to as little black caddisflies?

The family of caddisflies often referred to as "little black caddisflies" is Lepidostomatidae. This nomenclature arises from their common physical characteristics, including small size and dark coloration, which typically gives them a more subdued appearance compared to other caddisfly families.

Lepidostomatidae are generally found in freshwater habitats, where their larvae can exhibit behaviors and morphological adaptations aligned with their ecological niches. The adults are recognizable by their dark, stout bodies and their tendency to rest on surfaces in a spreading posture. This makes them distinguishable from other families, which may have varying colors, sizes, and forms.

In contrast, the other caddisfly families listed have their distinct features that do not align with the "little black caddisflies" description. For example, Glossosomatidae are known for their distinct cases made from pebbles or plant material, Limnephilidae typically have a larger and more robust form, while Brachycentridae often display a more diverse range of colorations and behaviors. Therefore, understanding the characteristics particular to Lepidostomatidae helps clarify why this family earns the nickname associated with little black caddisflies.