Chalybion zimmermanni, or Zimmermann's mud-dauber wasp, is a species of thread-waisted wasp in the family Sphecidae.
Subspecies There are three subspecies of Chalybion zimmermanni: Chalybion zimmermanni aztecum (de Saussure, 1867) (Aztec mud-dauber wasp) Chalybion zimmermanni peninsularum Bohart & Menke, 1963 Chalybion zimmermanni zimmermanni Dahlbom, 1843
Distribution and habitat C. zimmermanni occurs across North America. The nominate subspecies occurs from the southeastern US to Arizona. The subspecies C. zimmermanni peninsularum is restricted to Baja California, Mexico. The subspecies C. zimmermanni aztecum is the most widespread and occurs from the southern United States south to Nicaragua as well as in the Caribbean.
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