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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Alderflies, Dobsonflies, and Fishflies (Megaloptera) » Alderflies (Sialidae) » Sialis
Photo#1998454
Larson Trail Alderfly - Sialis
Copyright © 2021 Sara Simpkins

Larson Trail Alderfly - Sialis
Larson Trail, Grasslands National Park - West Block, Saskatchewan, Canada
June 6, 2021
Observed walking the Larson Trail in Grasslands National Park.

Images of this individual: tag all
Larson Trail Alderfly - Sialis Larson Trail Alderfly - Sialis
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Contributed by Sara Simpkins on 8 July, 2021 - 9:29pm
Last updated 8 July, 2021 - 11:14pm

Saskatchewan Sialis
At present, only S. velata is reported from Saskatchewan, so this very well may be your species. There are, however, 4 other species in neighboring provinces / states (S. californica, S. cornuta, S. hamata, & S. itasca). Proper separation of these species really relies upon microscopy of terminalia (particularly in these all-black species), so I would be hesitant to base an ID too much on range alone.
… Jonathan Hoskins, 27 May, 2022 - 10:09pm login or register to post comments

Sighting date is missing.
Please add to both images.

Thanks!
… Ken Wolgemuth, 8 July, 2021 - 10:42pm login or register to post comments

Moved
Moved from Alderflies.

There's only one genus in North America.
… Ken Wolgemuth, 8 July, 2021 - 10:41pm login or register to post comments

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