Subject: Big winged black bug with long tail?
Location: Alfalfa, Oregon
September 26, 2016 8:51 am
Location: central Oregon
Seen: September 25, 2016
This is a female Horntail, a non-stinging relative of wasps that uses her long ovipositor to lay eggs beneath the bark of trees. We believe your black Horntail is in the genus Sirex based on BugGuide images.