Horntail wood wasp pupa

5746   Hi, this bug is in my firewood. Some just under bark, and some in middle of wood. 

This is a pupa of a wood wasp known as a horntail (Hymenoptera: Siricidae). Their larvae tunnel in the wood of dead/dying trees, where they often fall victim to giant ichneumon wasps in the genus Megarhyssa – See http://tinyurl.com/jahprf2 for details. Ed Saugstad, retired entomologist; Sinks Grove, WV.