Noticeably larger and huskier than eastern
This is a picture of a Sylvanelater cylindriformis at the Glen Artney Area of Patapsco Valley State Park in Catonsville, Maryland.
This is a picture of Adelges tsugae on an eastern hemlock at the Glen Artney Area of Patapsco Valley State Park in Catonsville, Maryland.
Noticeably larger and huskier than eastern