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TaxonomyBrowse
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Species Lasioglossum zonulum - Bull-headed Sweat Bee

Another to ID - Lasioglossum zonulum - male Small Bee - Lasioglossum zonulum - female Bee on tomato - Lasioglossum zonulum Bee on tomato - Lasioglossum zonulum Mystery Bee - Lasioglossum zonulum Aculeata ? - Lasioglossum zonulum - male
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Ants, Bees and Stinging Wasps)
No Taxon (Anthophila (Apoidea) - Bees)
Family Halictidae (Sweat, Furrow, Nomiine, and Shortface Bees)
Subfamily Halictinae (Sweat and Furrow Bees)
Tribe Halictini
Genus Lasioglossum
No Taxon (Subgenus Leuchalictus)
Species zonulum (Bull-headed Sweat Bee)
Synonyms and other taxonomic changes
Halictus zonulus Smith, 1848; Halictus trifasciatus Schenck, 1853; Halictus rhenanus Verhoeff, 1890; Halictus recepticius Vachal, 1902; Halictus (Evylaeus) craterus Lovell, 1908; Halictus zonulus dexter Blüthgen, 1934; Halictus zonulus sinister Blüthgen, 1934; Lasioglossum (Lasioglossum) zonulum (Smith, 1848); Lasioglossum (Lasioglossum) zonulum euronotum Ebmer, 1998; Lasioglossum (Leuchalictus) zonulum euronotum Ebmer, 1998, valid subspecies
Explanation of Names
Lasioglossum (Leuchalictus) zonulum (Smith, 1848)
Size
Female: Length 8.5-10.5 mm(1)
Male: Length 7.4-9.2 mm(1)
Range
Holarctic, in Eastern North America ranging from Nova Scotia to Minnesota, through the New England states, New York, Michigan and Wisconsin. It is probably an introduced species.

North America: California to Washington and Idaho. East to Montana and the Dakotas, continuing east to Michigan and the New England states.
Season
April to October
Food
Visits flowers from several families. The Hosts section on its Discover Life species page lists known floral associations based on specimen records and images.
Print References
Mitchell, T.B. 1960 Bees of the Eastern United States. North Carolina Agricultural Experiment Station Technical Bulletin No. 141. (2)
Works Cited
1.Studies of Halictinae (Apoidea: Halictidae) I: Revision of New World Lasioglossum Curtis
Ronald J. McGinley. 1986. Smithsonian Institution.
2.Bees of the eastern United States
Mitchell T.B. 1962. Tech. Bull. (NC Agric. Exp. Sta.): No. 141 (538 pp.), 1960; and No. 152 (557 pp.).