Tube-making
Guides
Psychomyiidae
Net Tube Caddisflies, tube-making caddisflies, trumpet-net caddisflies
Psychomyiidae is a family of tube-making caddisflies (order Trichoptera) characterized by larvae that construct silken galleries or tubes on submerged surfaces. Adults are typically small with reduced wing venation, including absence of forewing fork I and shortened hindwing forks. The family is distinguished from similar Polycentropodidae by leg spur formula 2-4-4, short thyridial cell, and male genitalia with elongate preanal appendages and reduced tergum IX. Larvae possess separated submental sclerites, broad foretrochantin, and whip-like pupal mandible apices. The family contains approximately 10 extant genera and has a global distribution with notable diversity in the Oriental and Western Palearctic regions.