Lasioglossum (Evylaeus) intermedium (Schenck, 1868)

Vertommen, Win, Vanormelingen, Pieter, D’Haeseleer, Jens, Wood, Thomas J., Baugnée, Jean-Yves, Blanck, Tim De, Grave, David De, Rycke, Samuel De, Deschepper, Chantal, Devalez, Jelle, Feys, Simon, Foubert, Olivier, Jacobs, Maarten, Janssen, Kobe, Legrain, Benjamin, Molenberg, Jean-Marc, Pauly, Alain, Pasau, Bernard, Reynaerts, Annie, Verheyen, Stefan, Wallays, Henk, Wielandts, Maarten & Vereecken, Nicolas J., 2024, New and confirmed wild bee species (Hymenoptera: Apoidea: Apiformes) for the fauna of Belgium, with notes on the rediscovery of regionally extinct species, Belgian Journal of Entomology 149, pp. 1-64 : 26-27

publication ID	https://doi.org/10.5281/zenodo.16958242
publication LSID	lsid:zoobank.org:pub:387AD02A-54C0-4D7E-BF1F-FA0F748217F7
persistent identifier	https://treatment.plazi.org/id/1B4187C4-FFF9-FFF9-FB71-F8CBFB999F88
treatment provided by	Felipe
scientific name	Lasioglossum (Evylaeus) intermedium (Schenck, 1868)
status

Treatment

Lasioglossum (Evylaeus) intermedium (Schenck, 1868) View in CoL – Belg. sp. nov.

Fig. 5 View Fig

SHORT DESCRIPTION: Very hard to distinguish from other small Lasioglossum species, like L. tarsatum (Schenck, 1869) , L. semilucens (Alfken, 1914) and L. lucidulum (Schenck, 1861) . It is about 1 mm larger than these species, although it can only be identified with confidence using a microscope. The most striking traits for females are the white patches of hairs on the beginning of the second and third tergite and the dull, micro-punctuated scutum. Males are a bit easier to distinguish from these three species by the completely black hind leg tarsi, while L. tarsatum , L. semilucens and L. lucidulum have pale tarsi. Mostly restricted to sandy areas. Full diagnosis and keys in PAULY (2021).

DISTRIBUTION IN EUROPE: Widespread, but in decline in Europe. From Andalusia to eastern Turkey, northwards to the Baltic states, in Southern Europe localized (e.g., in Italy and Greece) ( SCHEUCHL & WILLNER, 2016). Found in the Netherlands ( REEMER, 2018; approved observations on https://waarneming.nl/species/24405/), France ( PAULY & BELVAL, 2017), Germany ( SCHEUCHL & WILLNER, 2016) and the Grand Duchy of Luxembourg ( FEITZ, 2003; HERRERA MESÍAS & WEIGAND, 2021). No records from the United Kingdom ( ELSE & EDWARDS, 2018).

EU RED LIST STATUS: Near Threatened (NT) ( NIETO et al., 2014)

ORIGIN OF RECORDS:

- LIMBURG PROVINCE. Neerpelt ; 1♀; 13.vi.2021; leg./coll. J. D’Haeseleer; det. T. De Blanck .

COMMENTS:

- There are about 20 years between the first record of this species in the Grand Duchy of Luxembourg ( FEITZ et al., 2003) and our first observation. This is understandable as it is most likely still very rare in Belgium and very hard to find.