These very attractive wasps show up in my yard in September, and thus are, in my mind, associated with hurricanes. The females, pictured below, are wingless and are said to have a powerful sting. The males have wings, but are stingless. See the stinger at her caudal end in the photos below.
Karl L. Wuensch
This page most recently revised on
the 31st of December, 2013.