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 Sthenele Engel , new genus ZooBank: urn:lsid:zoobank.org:act: 0FBA3657-6B0A-441C-B493-D8AA6FFD2BBE TYPE SPECIES : Pasiphae iheringi Schrotky, 1910 . DIAGNOSIS: This genus, like the preceding one, agrees with Bicolletes in most characters but quite characteristically the integument of the head and mesosoma is coarsely and densely punctate, in this regard resembling the sculpturing of Mimozibyne Engel, and with the punctures virtually contiguous, rather than with distinct areas of integument between the punctures, at least on the mesosoma, in Bicolletes s.l . ETYMOLOGY: The new genus-group name is taken from the Ancient Greek mythology where Sthenele ( ΣΘενέλη , “strong one”) was one of the hypothesized mothers of Patroclus, tragic hero of the Trojan War whose death launched Achilles’ bloodlust. The gender of the name is feminine.