Scientific Name: Macropis patellata Patton, 1880
Common Name: Macropis patellata Patton
Macropis patellata Patton, 1880: 33 [♂‚,♀]
Syntypes ♂‚,♀. USA, Connecticut, Plymouth, 1 August [no year provided], by H.F. Bassett, on Cicuta or Rhus; Connecticut, Waterbury, 9 July [no year provided], by W.H. Patton, on Lysimachia ciliata 
Though no specific localities are provided, Snelling and Stage (1995) indicated that this species occurred in [eastern] Canada, based on discussion of type localities of material described by Provancher, though this is not indicated in the range listed later in that work. However, its known proximity to eastern Canada (southern Ontario and Quebec) indicates that it likely does occur in Canada.
The DNA Barcode Index Number (BIN) for this species has not been assigned.
This species, like all bees of the genus Macropis, is a oligolege on oil producing flowers of the genus Lysimachia (Popov 1958; Cane et al. 1983; Michez and Patiny 2005; Dötterl and Schäffler 2006). This species is likely a host for the cleptoparasitic bee, Epeoloides pilosulus in North America (Sheffield et al. 2004; Sheffield and Heron 2018).
♀ body length: mm; head length: mm; head width: mm; forewing length: mm
♂‚ body length: mm; head length: mm; head width: mm; forewing length: mm
Extent of Occurrence (EOO) in Canada (http://geocat.kew.org/): N/A
Index of Area of Occupancy (IAO) in Canada (http://geocat.kew.org/): N/A
Cane JH, Eickwort GC, Wesley FR, Spielholz J (1983) Foraging, grooming and mateseeking behaviors of Macropis nuda (Hymenoptera, Melittidae) and use of Lysimachia ciliata (Primulaceae) oils in larval provisions and cell linings. American Midland Naturalist 110(2): 257â€‘264. https://doi.org/10.2307/2425267
Dötterl S, Schäffler I (2006) Flower scent of floral oil-producing Lysimachia punctata as attractant for the oil-bee Macropis fulvipes. Journal of Chemical Ecology 33(2): 441â€‘445. https://doi.org/10.1007/s10886-006-9237-2
Michener CD (1938) A review of the American bees of the genus Macropis (Hymen., Apoidea). Psyche 45(2): 133-135.
Michez D, Patiny S (2005) World revision of the oil-collecting bee genus Macropis Panzer, 1809 (Hymenoptera: Apoidea: Melittidae) with a description of a new species from Laos. Annales de la Société entomologique de France (N.S.) 41(1): 15â€‘28. https://doi.org/10.1080/00379271.2005.10697439
Patton WH (1880) Descriptions of the species of Macropis. Entomologists Monthly Magazine 17: 31-35.
Popov VB (1958) Peculiar features of correlated evolution of two genera of bees—Macropis and Epeoloides (Hymenoptera, Apoidea)—and a plant genus Lysimachia (Primulaceae). Entomological Review 37: 499â€‘519.
Provancher L (1888) In 1885-1889. Additions et Corrections au Volume II de la Faune Entomologique du Canada Traitant des Hyménoptères, pp. 1-475. Quebec: Darveau.
Sheffield C, Heron J (2018) A new western Canadian record of Epeoloides pilosulus (Cresson), with discussion of ecological associations, distribution, and conservation status in Canada. Biodiversity Data Journal 6: e22837. https://doi.org/10.3897/BDJ.6.e22837
Sheffield C, Perron J (2014) Annotated catalogue of the bees described by Léon Provancher (Hymenoptera: Apoidea). The Canadian Entomologist 146(2): 117-169. https://doi.org/10.4039/tce.2013.64
Sheffield C, Rigby S, Smith R, Kevan P (2004) The rare cleptoparasitic bee Epeoloides pilosula (Hymenoptera: Apoidea: Apidae) discovered in Nova Scotia, Canada, with distributional notes. Journal of the Kansas Entomological Society 77(3): 161-164. https://doi.org/10.2317/0310.23.1
Snelling RR, Stage GI (1995) A revision of the Nearctic Melittidae: the subfamily Melittinae (Hymenoptera: Apoidea). Los Angeles County Museum Contributions in Science 451: 19-31.
Pollen Specialization: Narrow Oligolecty
Wintering Stage: Mature Larva
Crop Preference: Not Available
Non Crop Preference: Lysimachia ciliata