Key to common families of insects in Georgian Bay
24a) Body oval and extremely flat. Head completely concealed from dorsal view. PSEPHENIDAE 24b) Body elongate. Head visible from dorsal view. ELMIDAE Return to Couplet 23 Return to BioMAP Central
24b) Body elongate. Head visible from dorsal view. ELMIDAE Return to Couplet 23 Return to BioMAP Central
