A review of Augochlora (Oxystoglossella) bees from South America: unexpected Amazonian diversity and assessment of vulnerable species Author Lepeco, Anderson Author Gonçalves, Rodrigo Barbosa text Journal of Natural History 2023 Oxford, England 2023-06-12 57 9 - 12 608 664 http://dx.doi.org/10.1080/00222933.2023.2195564 journal article 10.1080/00222933.2023.2195564 1464-5262 Augochlora ( Augochlora ) bractealis ( Vachal, 1904 ) Halictus bractealis Vachal, 1904 . Holotype male (MNHP) from Peru , ′ Villanota ̍ [probably lapsus for Vilcanota, in Cuzco , Peru ]. Examined through photographs. Halictus pyrrhias Vachal, 1911 . Lectotype female (MNHP) from Peru , Marcapata; designated by Moure and Hurd (1987) . Synonymy by Lepeco and Gonçalves (2022) . Examined through photographs. Halictus pinacis Vachal, 1911 . Holotype male (MNHP) from Peru , ′ Callanga ̍. Examined through photographs. New synonym. Comments The male holotype of Halictus pinacis has a ferruginous hind basitarsus, not yellow as in Oxystoglossella , and the head shape and body punctation agree with those of A. bractealis , recently transferred to Augochlora s. str. by Lepeco and Goncalves (2022) . Vachal (1911 , p. 50) separated H. pinaci s from H. bractealis based on T1 colouration, not entirely metallic on H. pinacis ; however, examining the holotypes images we suppose that this difference is due to particular specimen preservation, as seen in a series of other species, such as A. obidensis sp. nov.