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Claassenia sabulosa (Golden Stone) Stonefly Nymph Pictures

 This striking golden stonefly is the first of its species I've had the chance to photograph.

This stonefly was collected from Holder Creek on April 12th, 2021 and added to Troutnut.com on April 13th, 2021.

The spiky brown hairs sticking up from the tergites are the "intercalary bristles" mentioned in the key.  Claassenia sabulosa (Golden Stone) Stonefly Nymph from Holder Creek in Washington
The spiky brown hairs sticking up from the tergites are the "intercalary bristles" mentioned in the key.
Mouthparts, with the pudgy glossae in the usual position and the long, skinny paraglossae sticking out to the sides.  Claassenia sabulosa (Golden Stone) Stonefly Nymph from Holder Creek in Washington
Mouthparts, with the pudgy glossae in the usual position and the long, skinny paraglossae sticking out to the sides.
The transverse row of spinules on the occiput (little spikes along the back of the head) is an identifying characteristic clearly visible here.  Claassenia sabulosa (Golden Stone) Stonefly Nymph from Holder Creek in Washington
The transverse row of spinules on the occiput (little spikes along the back of the head) is an identifying characteristic clearly visible here.

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