Black-tipped Darner (Aeshna tuberculifera)

Male. South Prairie Bog, Skamania County, Washington. 9/1/30

Male T-spot and appendages. South Prairie Bog, Skamania County, Washington. 9/1/30

Note: The expected slight tubercle (protuburance) can be seen near the base of the upper appendage pictured above but it was not noticeable in other specimens photographed at this site.