Taxonomic revision of the Australian bee subgenus Ctenonomia, a reappraisal of the Australian subgenus Glossalictus and overviews of the Australian and New Zealand Lasioglossum subgenera (Hymenoptera: Apoidea: Halictidae: Lasioglossum)

Australian species of the Lasioglossum Curtis 1833 subgenus Ctenonomia Cameron 1903 are revised, to stabilise the taxonomy, and to facilitate identifications. This revision resolved there are 15 valid Australian species in this subgenus. Ten new species are erected, five described species are confirmed valid, six new synonyms are made and one described species has a new status. For Australian Lasioglossum (Ctenonomia) new species include: L. (C.) batleyi new species, L. (C.) boreum new species,