USGS Bee Inventory and Monitoring Lab   cc-publicdomain

Dianthidium is a genus of bees & apoid Wasps in the family Megachilidae. They visit flowers of mourning buckwheat, false london rocket, prickly lettuce, and common sandaster.

EOL has data for 13 attributes, including:

Known occurrences, collected specimens and observations of Dianthidium. View this species on GBIF