Visitors to the Moth Sheet

The moths that come to my black light and moth sheet are accompanied by a wide variety of critters. Here is a sample from June. I haven't had any luck with identifying the black and gold Dipteran, but it's pretty.
 The large mayfly is probably one of the burrowing species, but I haven't attempted to identify it.
 This small wasp could be one of several things.  I'm still working on an ID.
 The beetle belongs to the genus Neopyrochroa, one of the fire-colored beetle group. The larva are found in dead wood.
 I used to have a family designation for this spider, but in a recent publication the authors argued that the family had no unique characteristics. One of these days the experts will explain.