Hydropsychoidea

Definition

A superfamily of caddisflies (order Trichoptera) comprising net-spinning and retreat-making species, including the families Hydropsychidae, Philopotamidae, and related groups. Members are predominantly aquatic larvae that construct silken capture nets or retreats in flowing water.

Etymology

From Greek hydros (water) + psyche (soul, butterfly), with -oidea denoting superfamily rank; alluding to the aquatic habitat and moth-like adult form.

Example

Hydropsychoidea includes the economically significant Hydropsychidae, whose larvae are used as bioindicators of stream water quality due to their sensitivity to dissolved oxygen and sedimentation.

Related Terms

• Trichoptera
• Hydropsychidae
• Philopotamidae
• caddisfly
• net-spinning caddisfly
• aquatic insect

Usage Notes

Taxonomic rank varies in literature: treated as superfamily in many modern systems, though some sources list it at family rank. Distinguished from other Trichoptera superfamilies by larval net-building behavior and reduced adult mandibles.