References
Further reading
* "Phylogenetic relationships among superfamilies of Hymenoptera", Sharkey M.J., Carpenter J.M., Vilhelmsen L., et al. 2012. ''Cladistics'' 28(1): 80–112. * * Sharkey M.J. (2007). ''Phylogeny and Classification of Hymenoptera''. Halictidae Insects described in 1915 {{sweat-bee-stub