A review of the Augochloropsis (Hymenoptera, Halictidae) and keys to the shiny green Halictinae of the midwestern United States Author Portman, Zachary M. https://orcid.org/0000-0001-8943-8196 Department of Entomology, University of Minnesota, St Paul, MN, USA zportman@gmail.com Author Arduser, Mike Conservation Research Institute, Cedarburg, WI, USA Author Lane, Ian G. https://orcid.org/0000-0002-6645-2136 Department of Entomology, University of Minnesota, St Paul, MN, USA Author Cariveau, Daniel P. https://orcid.org/0000-0002-3064-0071 Department of Entomology, University of Minnesota, St Paul, MN, USA text ZooKeys 2022 2022-11-18 1130 103 152 http://dx.doi.org/10.3897/zookeys.1130.86413 journal article http://dx.doi.org/10.3897/zookeys.1130.86413 1313-2970-1130-103 C8FFC906D96F43ACA5B9FB21B6E27C33 6007CB98AFAA58A5BD50EA75BBF78B0C Agapostemon (Agapostemon) angelicus Cockerell Diagnosis. Females of Agapostemon angelicus can be recognized by the unique double-punctate scutum (as in Fig. 5A ), a character they share with Agapostemon texanus . Our efforts to find characters to separate the females of these two species for the most part have been fruitless, and like workers before us ( Roberts 1972 ), we consider females of Agapostemon angelicus and Agapostemon texanus to be morphologically indistinguishable. Males of Agapostemon angelicus can be separated from males of Agapostemon texanus using the leg and genitalia characters given in the key. Remarks. Agapostemon angelicus is primarily a western species, though Roberts (1972) records it from central Iowa and extreme eastern Kansas. As far as we have been able to determine, there are no recent records of Agapostemon angelicus east of the 98th Meridian. A 2018-2019 statewide survey of Kansas bees by Morphew (2017) did not find any Agapostemon angelicus males (verified by MSA) east of the central part of the state, with the easternmost records from Ellsworth and Rice counties. Recent survey efforts in eastern Nebraska have not found any Agapostemon angelicus east of the Grand Island area (Hall Co.). No confirmed recent records are known from Minnesota, Missouri, or Iowa, despite extensive collection efforts in those states. However, care should be taken to look for it and more work needs to be done to confirm the eastern extent of the range of Agapostemon angelicus . In areas where the two species may overlap, it is recommended that females identified morphologically as Agapostemon angelicus or Agapostemon texanus be treated as a single morphospecies. The two species can also be separated by DNA barcodes.1