Sialis fuliginosa                                    Alder fly

S. lutaria

Coleoptera                                            Beetles

Anisoptera                                            Dragonflies

Zygoptera                                             Damselflies

Asellus aquaticus                                  Hog louse

A. meridianus

Gammarus pulex                                   Freshwater Shrimp

G. lacustris

Corixidae                                              Water Boatman

Hirudinae                                              Leeches