1. Hairy-bodied insect whose larvae feed on freshwater sponges
   - spongefly

Derived forms: spongillaflies

Type of: neuropteran, neuropteron, neuropterous insect

Part of: family Sisyridae, Sisyridae

• family Tytonidae
• family Uintatheriidae
• family Ulmaceae
• family Ulvaceae
• family Umbelliferae
• family Unionidae
• family unit
• family Upupidae
• family Uranoscopidae
• family Ursidae
• family Urticaceae
• family Usneaceae
• family Ustilaginaceae
• family Valerianaceae
• family Varanidae
• family Veneridae
• family Verbenaceae
• family Vespertilionidae
• family Vespidae
• family Violaceae
• family Viperidae
• family Vireonidae
• family Viscaceae
• family Vitaceae
• family Vittariaceae