@article {769,
	title = {A NEW SPECIES OF CHLEROGAS FROM THE ANDES OF CENTRAL COLOMBIA (HYMENOPTERA: HALICTIDAE)},
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	url = {www.unal.edu.co/icn/publicaciones/caldasia.htm},
	author = {Engel, M.S. and Gonzalez, V.H.}
}
@article {772,
	title = {NOTES ON THE AUGOCHLORINE BEE GENUS CHLEROGAS (HYMENOPTERA: HALICTIDAE)},
	journal = {Caldasia},
	volume = {31},
	year = {2009},
	chapter = {449-457},
	issn = {0366-5232},
	author = {Engel, M.S.}
}
@article {1065,
	title = {Revision of the bee genus Chlerogella (Hymenoptera, Halictidae), Part I: Central American species},
	journal = {ZooKeys},
	volume = {23},
	year = {2009},
	chapter = {47-75},
	author = {Engel, M.S.}
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@article {1073,
	title = {Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis},
	journal = {ZooKeys},
	volume = {47},
	year = {2010},
	chapter = {1-100},
	author = {Engel, M.S.}
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@article {582,
	title = {A New Species of Dialictus from Sombrero Island, Anguilla (Hymenoptera, Halictidae)},
	journal = {ZooKeys},
	volume = {86},
	year = {2011},
	type = {Research Article},
	chapter = {61-68},
	doi = {doi: 10.3897/zookeys.86.909},
	author = {Engel, M.S.}
}
@article {588,
	title = {A new species of Microsphecodes from Jamaica (Hymenoptera, Halictidae)},
	journal = {ZooKeys},
	volume = {111},
	year = {2011},
	chapter = {33-40},
	doi = {10.3897/zookeys.111.1597},
	author = {Engel, M.S.}
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@article {593,
	title = {Noctoraptor in Bolivia (Hymenoptera: Halictidae)},
	journal = {Journal of the Kansas Entomological Society},
	volume = {84},
	year = {2011},
	chapter = {64-70},
	doi = {10.2317/JKES101006.1},
	url = {http://www.bioone.org/doi/full/10.2317/JKES101006.1},
	author = {Engel, M.S.}
}
