About 7-8 mm in length, bright metallic blue-green as shown.
Habitat is south-facing hillside with grassland, Gambel's Oak, and scattered conifers uphill.
This species is a parasite of the nests of pollen wasps (Pseudomasaris spp.).
Lat: 38.74, Long: -104.82
Spotted on May 24, 2017
Submitted on Feb 11, 2018