Knobbed Salmonfly Pteronarcys biloba Newman, 1838  

There are 5 records in the project database.

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A female Knobbed Salmonfly in Frederick Co., Maryland (4/19/2014). View ID video. Photo by Richard Orr. (MBP list)

A female Knobbed Salmonfly in Frederick Co., Maryland (4/19/2014). Photo by Bonnie Ott. (MBP list)

A female Knobbed Salmonfly in Frederick Co., Maryland (4/19/2014). Photo by Bonnie Ott. (MBP list)

A female Knobbed Salmonfly in Frederick Co., Maryland (4/19/2014). Photo by Bonnie Ott. (MBP list)

A Knobbed Salmonfly emerging in Frederick Co., Maryland (04/19/2014). Photo by Richard Orr. (MBP list)


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