Common Name: AlderFlies
Scientific Name:(sialis)
Phylum: Arthropoda (Arthropods)

Class: Insecta (Insects)

Order: Megaloptera (Alderflies, Dobsonflies, and Fishflies)

Sensitivity to Pollution: moderate

Key Identification Features:
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Habitat Description:
  • (benthic, nektonic, planktonic)
  • (headwaters, midreaches, large rivers)
  • (riffle, deep pool, rapids, etc.)

What it Eats: Adult does not seem to eat, larva preys on small aquatic insects and worms.


Interesting Adaptations: N/A

Life Cycle Notes and Diagram: Eggs are laid near water. Nymphs crawl into water and grow until autumn.

Importance in Ecosystem:

Works Cited: The Audubon Society Field Guide to North American Insects and Spiders, Guide to Pacific Northwest Aquatic Invertebrates (second Edition)
Freshwater Benthic Ecology and Aquatic Entomology Homepage. Soil & Water Conservation Society of Metro Halifax. 09 October 2013. Web. 23 February 2015.
Invertebrates. The Xerces Society For Invertebrate Conservation. Web. 23 February 2015.

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