Pteronarchys (californica?) - Pteronarcys

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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Stoneflies (Plecoptera) » Pteronarcyoidea » Giant Stoneflies (Pteronarcyidae) » Giant Stoneflies (Pteronarcys)

Photo#927226

Copyright © 2014 Melissa Barton

Pteronarchys (californica?) - Pteronarcys

Deschutes River Boat Ramp, Warm Springs, Jefferson County, Oregon, USA
May 26, 2014

Mass emergence of this and at least one other species recently. I think P. californica may be the only likely species of Pteronarchys in the area.

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Contributed by Melissa Barton on 27 May, 2014 - 10:01am

Moved

Moved from ID Request.

P. princeps may also be possible in your area. Here in northern California, the two species sort of separate out by elevation -- P. californica being at the lower elevations.

In order to ID your specimen, we'd need to see close-up photos of the genitalia: side view for the male, but ventral view for the female.

… Brady Richards, 27 May, 2014 - 10:38am

Thanks so much! Unfortuna

Thanks so much!

Unfortunately I didn't get genitalia photos of any of the individuals, but I'll keep that in mind for future stonefly sightings. If it helps at all, the elevation is about 1,539 ft (469 m), and the Deschutes River at this location is pretty small (although certainly not a stream).

… Melissa Barton, 27 May, 2014 - 11:34pm

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