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Prehistoric insect in amber C016 / 6117Prehistoric insect in amber. Corydasialis inexpectatus specimen preserved in Baltic amber. The specimen is more than 2 centimetres long
Alder fly in Baltic amberAlder fly, Megaloptera: Sialoidea in Baltic amber. Specimen dates from the Upper Eocene
Corydasialis inexpectatus
Alderfly (Sialis lutaria) adult, resting on stem, Crossness Nature Reserve, Bexley, Kent, England, may
Alderfly (Sialis lutaria) adult, resting on leaf, Crossness Nature Reserve, Bexley, Kent, England, may
Alderfly larva, SEMAlderfly larva. Coloured scanning electron micrograph (SEM) of the head of an alderfly larva (Sialis lutaria). At right is one of its compound eyes (orange) and at lower centre are its powerful jaws
Gills of an Alderfly larva, SEMGills of an alderfly larva. Coloured scanning electron micrograph (SEM) of the gills of an alderfly (Sialis lutaria) larva. The gills are the feather-like structures seen at top and bottom