Data deficient-first identified as being present in Ireland in 2006
- This species can only be reliably distinguished from its sister species (Bombus lucorum and Bombus magnus) by molecular analysis.
- Unless accompanied by DNA analysis, all should be recorded as 'Bombus lucorum'. They are treated as the sister complex
- Clean white tail
- Queens have one lemon yellow band on the thorax and one on the abdomen
- It is said that the yellow thorax band is often more s-shaped and may reach down the side of the body and underneath the wings in queens (as in B. magnus). However, research has shown it is impossible to reliably distinguish B. cryptarum from B. lucorum and B. magnus without molecular analysis. See Murray T.E., Fitzpatrick Ú., Brown M.J.F. & Paxton R.J. (2008). Cryptic diversity in a widespread bumble bee complex revealed using mitochondrial DNA RFLPs. Conservation Genetics 9: 653-666.
Habitat associations, if any, are not yet known in Ireland
Irish data not yet available
Nests underground in cavaties
Records submitted to Data Centre in 2019
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Conservation status: FitzPatrick Ú., Murray T.E., Byrne A., Paxton R.J., Brown M.J.F. (2006) Regional Red List of Irish Bees, Publ. Rep. to National Parks and Wildlife Service (Ireland) and Environment and Heritage Service (N. Ireland). http://www.npws.ie/publications/red-lists
Flowers visited & World distribution: Westrich, P. (1989) Die Wildbienen Baden-Württembergs. Eugen Ulmer, Stuttgart, Germany.