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Lasioglossum obnubilum (Sandhouse, 1924)


Scientific Name: Lasioglossum obnubilum (Sandhouse, 1924)

Common Name: Cloudy Sweat Bee


Halictus (Chloralictus) obnubilus Sandhouse, 1924: 28 [♂].

     Holotype ♂. USA, Colorado, Boulder, 18 July 1908, by S.A. Rohwer [USNM no. 26427].

Lasioglossum (Dialictus) lilliputense Gibbs, 2010: 178 [♀]. Synonymy by Gardner and Gibbs (2021: 14).

     Holotype ♀. USA, Montana, Gallatin Co., N44.80377 W111.17462, elev. 2030 m, 23 June 2007, by J. Gibbs and C. Sheffield [PCYU].


Taxonomic notes: Prior to Gardner and Gibbs (2021), Lasioglossum obnubilum (Sandhouse, 1924) was not known from outside of Colorado, USA. Its female, described as Lasioglossum lilliputense Gibbs, 2010 was described from Montana, with additional material from Idaho and

British Columbia (Gibbs 2010). Gibbs (2010: 180) suggested that L. lilliputense was possibly the female of L. obnubilum, which was confirmed by Gardner and Gibbs (2021: 14).

DNA Barcode Index Number (BIN): BOLD:AAJ1749

Distribution in Canada: Gibbs 2010 [BC, as L. lilliputense Gibbs]; Sheffield and Heron 2019 [BC, as L. lilliputense Gibbs]; Gardner and Gibbs 2021 [BC].

Body length: ♀ 4.11 - 4.54 mm ♂ 4.0 - 4.5 mm

Forewing length: ♀ 3.2 - 3.3 mm

Intertegular distance: ♂ 0.7 mm


Gibbs J (2010) Revision of the metallic species of Lasioglossum (Dialictus) in Canada (Hymenoptera, Halictidae, Halictini). Zootaxa 2591: 1-382.

Sandhouse GA (1924) New North American species of bees belonging to the genus Halictus (Chloralictus). Proceedings of the United States National Museum 65: 1-43.

Gardner J, Gibbs J (2021) New and little-known Canadian Lasioglossum (Dialictus) (Hymenoptera: Halictidae) and an emended key to species. The Canadian Entomologist 154(1), E3.

Sheffield CS, Heron JM (2019) The bees of British Columbia (Hymenoptera: Apoidea, Apiformes). Journal of the Entomological Society of British Columbia 115: 44-85.

Sociality: Eusocial
Nesting: Ground
Pollen Specialization: Polylectic
Wintering Stage: Mated Female

Crop Preference: Not Available
Non Crop Preference: Not Available

Distribution: British Columbia

Distribution Map