{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,19]],"date-time":"2026-05-19T02:06:53Z","timestamp":1779156413695,"version":"3.51.4"},"reference-count":0,"publisher":"Magnolia Press","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Zootaxa"],"abstract":"<jats:p>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.\nFor Australian Lasioglossum (Ctenonomia) new species include: L. (C.) batleyi new species, L. (C.) boreum new species, L. (C.) flutinum new species, L. (C.) floccosum new species, L. (C.) forresti (Cockerell 1906), L. (C.) hirtiglossa new species, L. (C.) leviorum new species, L. (C.) luculentum new species, L. (C.) picticorne (Cockerell 1930a), L. (C.) quadrifidum new species, L. (C.) rotundatum new species, and L. (C.) sagitta new species. New synonyms include: Halictus tribuarium Rayment 1935 is a new junior subjective synonym of L. (C.) clarigaster (Cockerell 1918); Halictus repertulus Cockerell 1916b, Halictus semipolitus expulsus Cockerell 1916c, Halictus speculellus Cockerell 1918 and Halictus barretti Cockerell 1929a are new junior subjective synonyms of L. (C.) semipolitum (Cockerell 1916b); and, Halictus cyclurus Cockerell 1915a is a new junior subjective synonym of L. (C.) sturti (Cockerell 1906). Lasioglossum (Ctenonomia) blandulum (Cockerell 1929c) is transferred to L. (Chilalictus) blandulum new status.\nA case of secondary homonymy is addressed, which occurred when Homalictus was reclassified to a subgenus of Lasioglossum. Lasioglossum (Ctenonomia) punctatum (Smith 1858, Indonesia) is a senior primary homonym of L. (Homalictus) punctatum (Smith 1879, Australia). Lasioglossum (Homalictus) exlautum (Cockerell 1905, Australia), originally described as a subspecies of L. punctatum, is the valid name for the Australian species.\nAll valid Ctenonomia species are described or redescribed, some with the male sex for the first time. Keys to both sexes, taxonomy, chresonymy, subgenus and species diagnoses, taxonomic notes, biology, etymologies, (re)descriptions, colour montage and SEM images, floral hosts, flight phenologies, range and distribution maps are provided. Analyses of species distributions, floral data, flight, phenologies discussions on associated organisms, female acarinaria, male sternal\/tergal \u201cmite pouch\u201d, female macrocephaly, and sternal hair types are presented and compared with other Australian Lasioglossum subgenera.\nThe Australian endemic and monotypic Lasioglossum subgenus Glossalictus is reappraised and retained as valid. A review of subgeneric morphological characters suggests Glossalictus is most closely aligned with the subgenus Chilalictus. Both sexes are redescribed, figured and characters discussed.\nThis study marks the completion of revisions for all Australian Lasioglossum subgenera. The Australian Lasioglossum fauna contains 264 valid species with 12 valid subgenera. These revisions have erected four new subgenera, 120 new species, synonymised 187 species and one subgenus and removed one subgenus from the Australian fauna. Biological and morphological overviews and keys to both sexes for the Australian and New Zealand Lasioglossum subgenera are presented.<\/jats:p>","DOI":"10.11646\/zootaxa.5811.1.1","type":"journal-article","created":{"date-parts":[[2026,5,19]],"date-time":"2026-05-19T01:21:40Z","timestamp":1779153700000},"page":"1-153","source":"Crossref","is-referenced-by-count":0,"title":["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)"],"prefix":"10.11646","volume":"5811","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8750-2035","authenticated-orcid":false,"given":"KENNETH L.","family":"WALKER","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"4913","published-online":{"date-parts":[[2026,5,19]]},"container-title":["Zootaxa"],"original-title":[],"link":[{"URL":"https:\/\/mapress.com\/zt\/article\/download\/zootaxa.5811.1.1\/59107","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/mapress.com\/zt\/article\/download\/zootaxa.5811.1.1\/59107","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,19]],"date-time":"2026-05-19T01:21:41Z","timestamp":1779153701000},"score":1,"resource":{"primary":{"URL":"https:\/\/mapress.com\/zt\/article\/view\/zootaxa.5811.1.1"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,5,19]]},"references-count":0,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2026,5,19]]}},"URL":"https:\/\/doi.org\/10.11646\/zootaxa.5811.1.1","relation":{},"ISSN":["1175-5334","1175-5326"],"issn-type":[{"value":"1175-5334","type":"electronic"},{"value":"1175-5326","type":"print"}],"subject":[],"published":{"date-parts":[[2026,5,19]]}}}