Variation in metasomal colour in female Agapostemon melliventris Cresson, 1874 s. l. based on the species concept of Roberts (1972).

 
  Part of: Sheffield C (2023) Agapostemon fasciatus Crawford (Hymenoptera, Halictidae), a valid North American bee species ranging into southern Canada. Biodiversity Data Journal 11: e103982. https://doi.org/10.3897/BDJ.11.e103982