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Species Account for Sphecodes crassus

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Sphecodes crassus Thomson, 1870
a cuckoo bee
Aculeata: Halictinae

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Taxonomic group: bees and wasps (Aculeata) - County data

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Status: Nb

Essex RDB: Listed
Threat: Regionally Important

Records: 252

First Record: 1976

Latest Record: 2024

1992-on hectads: 32

Pre-1992 hectads: 2

Total hectads: 32

Additional Phenology Data

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Essex Red Data List comment
cleptoparasite on Lasioglossum spp.

Species text
Sphecodes crassus is a small black and red cuckoo bee, cleptoparasitic on Lasioglossum spp. especially L. nitidiusculum and L. parvulum. Females are very difficult to distinguish from the related S. geoffrellus (fasciatus), therefore its status and distribution is unclear. However it does currently seem to be widespread in the East Thames Corridor. References

Species text last edited on Thu Nov 7th 2019 by user 169