Lasioglossum calceatum ♂︎
-Common ragwort-

Last update: 5 February 2021
OBSERVATION:
2016-VIII-14

A male of the Sweatbee Lasioglossum calceatum[1, 2]. This common species is present in the garden every year. A beautifull striking bee. 

Lasioglossum calceatum ♂︎

The male is recognizable by the red dorsal plates and the long black antennae. Females can also have red dorsal plates but in the Netherlands that is less likely[2].
The females excrete a sweet smell[1].

Females of Sweatbees have a groove in the tip of the abdomen[1]. This is a social species that build a colony.

 

26 July 2019


A very dark colored male. He hung around a group of Common ragwort plants for weeks.

Common furrow bee ♂︎ (Lasioglossum calceatum) on Common ragwort (Jacobaea vulgaris)
Common furrow bee ♂︎ (Lasioglossum calceatum) on Common ragwort (Jacobaea vulgaris)

References

1 wildebijen.nl, "De Nederlandse bijen en hun relaties, overzicht van in Nederland en Vlaanderen voorkomende solitaire en sociale bijen (Apidea s.l.)"

2 Peeters, T.M.J., H. Nieuwenhuijsen, J. Smit, F. van der Meer, I.P. Raemakers, W.R.B. Heitmans, C. van Achterberg, M. Kwak, A.J. Loonstra, J. de Rond, M. Roos & M. Reemer 2012. De Nederlands bijen (Hymennoptera: Apidae s.l.). - Natuur van Nederland 11, Naturalis Biodiversity Center & European Invertebrate Survey - Nederland, Leiden.

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