Giant stonefly

7238.        Hi, We saw this insect crawling on the cement in our back yard about a half-hour ago and have never seen one before, here or anywhere. It is about 1-3/4″ to 2″ long. It has wings but did not fly. Would you mind terribly identifying it for us? Edmonton, Alberta. Canada

Number 7238. It’s a giant stonefly (Plecoptera: Pteronarcidae). These are harmless insects whose aquatic immature stages form an important part of the freshwater food web.  Giant Stonefly Additional Information