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Pilonm has attached these 3 pictures to aid in identification. The message is below.
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PilonmOctober 17th, 2007, 12:22 pm
Quebec

Posts: 19
Hello,

Here are 3 pictures of a stone fly I photographied on this screen at home (Sherbrooke, Quebec, near Vermont)...

This insect from the Plecoptera order is from the Perlidae family (pretty sure of that) but I have no idea about the species...

Can you help me to identify it???

Thank you again for your kind help!

Michel
Quebec, Canada
KonchuOctober 17th, 2007, 3:13 pm
Site Editor
Indiana

Posts: 505
What is the size of the beast?
PilonmOctober 18th, 2007, 4:53 am
Quebec

Posts: 19
Hello Konchu,

Thank you for your quick reply! It is really appreciated!

The length of the plecopteran is 3.3 cm or around 1.5 inch long from the head (without the antennas) to the end of the wings.

Any idea???

Someone mentionned Pteronarcys dorsata...

I'll have to verify this...

Ciao and thank you!

Michel
TaxonOctober 18th, 2007, 4:46 pm
Site Editor
Plano, TX

Posts: 1344
Michel-

I believe it to be of family Perlidae (Golden Stones), specifically Paragnetina immarginata, which has the common name of Beautiful Stone.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

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