A new bee genus from the pampas of eastern Argentina, with appended notes on the classification of “ paracolletines ” (Hymenoptera: Colletidae) Author Engel, Michael S. Division of Entomology, Natural History Museum, and Department of Ecology & Evolutionary Biology, 1501 Crestline Drive - Suite 140, University of Kansas, Lawrence, Kansas 66045 - 4415, USA (msengel @ ku. edu). & Division of Invertebrate Zoölogy, American Museum of Natural History, Central Park West at 79 Street, New York, New York 10024 - 5192, USA. Author Gonzalez, Victor H. Undergraduate Biology, and Department of Ecology & Evolutionary Biology, 1200 Sunnyside Avenue, University of Kansas, Lawrence, Kansas 66045, USA (vhgonza @ ku. edu). text Journal of Melittology 2022 2022-01-24 2022 109 1 39 http://dx.doi.org/10.17161/jom.i109.16424 journal article 10.17161/jom.i109.16424 2325-4467 13146121 6C96BAB7-7AF6-4B8B-A2EF-08BD9F3A1344 Conospermapis Engel , new genus ZooBank: urn:lsid:zoobank.org:act: A73AB313-A76F-4065-BCDC-D363A11C664A TYPE SPECIES : Leioproctus ( Leioproctus ) conospermi Houston, 1989 . DIAGNOSIS: This genus corresponds to the conospermi species group of Houston (1989). Aside from the characters outlined in the various couplets of the above key that lead to the genus, other noteworthy traits include the serrate inner metatibial spur of females, the ventrally bowed prementum, and the sparse metatibial scopa with bifurcate or trifurcate setae. ETYMOLOGY: The new genus-group name is taken from Conospermum Sm. ( Proteaceae : Proteoideae : Conospermeae) and the Latin noun apis (meaning, “bee”). The gender of the name is feminine.