Crabronidae: Square-headed wasps, Sand wasps
Crabronidae: Square-headed wasps, Sand wasps categories: Crabronidae Pollinators Wasps last review date: 2025-06-17 12:01 Pacific Cicada Killer, Sphecius convallis, feeding on milkweed (Asclepias fascicularis) flowersPhoto by: D.G. James Biology The Crabronidae is one of our most diverse wasp families, with over 1,200 species in the U.S. and almost 9,000 species worldwide. Most species are also […]