Family - Aeshnidae

Taxonomic Hierarchy for Freshwater Invertebrate Collection


Results

7 results for "Aeshnidae"

Aeshna eremita

Freshwater Invertebrate Collection

Common NameLake Darner SeasonalityJune to September in British Columbia (Paulson, 2009). IdentificationBlue or green notched stripes on lateral sides of thorax (Figure 2). Very similar in appearance to Canada Darners (A. canadensis) but different by having a larger size,a notched posterior thoracic stripe, and a black horizontal line bisecting the frons. They are easily differentiated from other congeneric species by their large sizes and their thoracic stripe pattern(Paulson, 2009).

Aeshna interrupta

Freshwater Invertebrate Collection

Common NameVariable Darner SeasonalityJune to October in British Columbia (Paulson, 2009). IdentificationHalf blue and half yellow stripes on lateral sides of thorax narrow or broken into spots as the scientific name suggests (see lateral image).Most other congeneric species (e.g. A. eremita and A. juncea) have more prominent and unbroken thoracic stripes (Paulson, 2009).

Aeshna juncea

Freshwater Invertebrate Collection

Common NameRush Darner SeasonalityJune to September in British Columbia (Paulson, 2009). IdentificationBlue and yellow stripes on lateral sides thorax are straight and broad (Figure 2). Similar in appearance to Subarctic Darners(A. subarctica) but differnt by having straight thoracic stripes (instead of slightly notched). Also somewhat similar to Variable Darners (A. interrupta) but different by having broader thoracic stripes. They are easily differentiated from other congeneric species by their thoracic stripe pattern (Paulson, 2009).

Aeshna sitchensis

Freshwater Invertebrate Collection

Aeshna sp.

Freshwater Invertebrate Collection

Aeshna umbrosa

Freshwater Invertebrate Collection

Anax sp.

Freshwater Invertebrate Collection

Taxonomic Hierarchy for Freshwater Invertebrate Collection