Jan Hamrsky: Spongillafly larva (Sisyra fuscata) on freshwater sponge (Spongilla lacustris)
Jan Hamrsky: Spongillafly larva (Sisyra fuscata), feeding on freshwater sponge
Jan Hamrsky: Spongillafly larvae (Sisyra fuscata)
Jan Hamrsky: Spongillafly larvae (Sisyra fuscata)
Jan Hamrsky: Spongillafly larva (Sisyra fuscata)
Jan Hamrsky: Spongillafly larva (Sisyra fuscata)