Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana

Salmonflies
Pteronarcys californica

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Stone fly to identify...

Pilonm has attached these 3 pictures to aid in identification. The message is below.

Pilonm
Quebec

Posts: 19

Pilonm on Oct 17, 2007October 17th, 2007, 8:22 am EDT

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

Konchu

Site Editor
Indiana

Posts: 498

Konchu on Oct 17, 2007October 17th, 2007, 11:13 am EDT

What is the size of the beast?

Pilonm
Quebec

Posts: 19

Pilonm on Oct 18, 2007October 18th, 2007, 12:53 am EDT

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

Taxon

Site Editor
Plano, TX

Posts: 1311

Taxon on Oct 18, 2007October 18th, 2007, 12:46 pm EDT

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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Troutnut Forum › Get Bugs Identified › Stone fly to identify...