The pseudo-Gondwanan genus Atlatlia (Diptera: Dolichopodidae) from Australia, New Caledonia, and Baltic amber, with the description of two new genera
The fly genus Atlatlia Bickel, 1986 (Diptera: Dolichopodidae: Medeterinae) is revised with additional new recent and fossil species, and now comprises two major species groups. The Atlatlia grisea group includes three recent species from Australia, A. grisea Bickel, 1986; A. flaviseta Bickel, 1986;...
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2025-05-01
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| author | Dan Bickel John Martin |
| author_facet | Dan Bickel John Martin |
| author_sort | Dan Bickel |
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| description | The fly genus Atlatlia Bickel, 1986 (Diptera: Dolichopodidae: Medeterinae) is revised with additional new recent and fossil species, and now comprises two major species groups. The Atlatlia grisea group includes three recent species from Australia, A. grisea Bickel, 1986; A. flaviseta Bickel, 1986; and A. isolata sp. nov., three recent species from New Caledonia, A. acra sp. nov., A. argenticoxa sp. nov., and A. cowanae sp. nov., and three species from Baltic amber, A. corynoura, sp. nov., A. electrica sp. nov., and A. licina, sp. nov. The Atlatlia ulrichi group includes six species from Baltic amber, A. angulicauda sp. nov., A. cryptica sp. nov., A. penicillata sp. nov., A. ramosa sp. nov., A. tonsa, sp. nov., and A. ulrichi sp. nov. The genus Kashubia gen. nov., is described from Baltic amber with three species: K. falcata, sp. nov., K. ornatipes sp. nov., and K. starki sp. nov. The genus Eridanomyia gen. nov. is described from Baltic amber with two species, E. amica sp. nov. and E. conjugalis sp. nov. Four of the newly described Baltic amber species also occur in Bitterfeld amber, suggesting their overall faunal similarity. The striking disjunction of the genus Atlatlia in both time and space, recent Australia and New Caledonia and Paleogene Baltic amber, suggests a once much wider distribution, possibly during Eocene “greenhouse earth” climatic conditions, with subsequent extinction leaving only a relict fauna in Australasia. With geological evidence suggesting New Caledonia was largely submerged in the early Paleogene and only emergent in the late Eocene, the New Caledonian Atlatlia fauna possibly originated by dispersal from Australia in the early to mid-Cenozoic. |
| format | Article |
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| issn | 0067-1975 2201-4349 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Australian Museum |
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| series | Records of the Australian Museum |
| spelling | doaj-art-faa54c4e07e44c8a99a319f6bab2ca762025-08-20T02:14:42ZengAustralian MuseumRecords of the Australian Museum0067-19752201-43492025-05-017728912010.3853/j.2201-4349.77.2025.1907The pseudo-Gondwanan genus Atlatlia (Diptera: Dolichopodidae) from Australia, New Caledonia, and Baltic amber, with the description of two new generaDan Bickel0https://orcid.org/0000-0003-4756-3882John Martin1Australian MuseumPrivateThe fly genus Atlatlia Bickel, 1986 (Diptera: Dolichopodidae: Medeterinae) is revised with additional new recent and fossil species, and now comprises two major species groups. The Atlatlia grisea group includes three recent species from Australia, A. grisea Bickel, 1986; A. flaviseta Bickel, 1986; and A. isolata sp. nov., three recent species from New Caledonia, A. acra sp. nov., A. argenticoxa sp. nov., and A. cowanae sp. nov., and three species from Baltic amber, A. corynoura, sp. nov., A. electrica sp. nov., and A. licina, sp. nov. The Atlatlia ulrichi group includes six species from Baltic amber, A. angulicauda sp. nov., A. cryptica sp. nov., A. penicillata sp. nov., A. ramosa sp. nov., A. tonsa, sp. nov., and A. ulrichi sp. nov. The genus Kashubia gen. nov., is described from Baltic amber with three species: K. falcata, sp. nov., K. ornatipes sp. nov., and K. starki sp. nov. The genus Eridanomyia gen. nov. is described from Baltic amber with two species, E. amica sp. nov. and E. conjugalis sp. nov. Four of the newly described Baltic amber species also occur in Bitterfeld amber, suggesting their overall faunal similarity. The striking disjunction of the genus Atlatlia in both time and space, recent Australia and New Caledonia and Paleogene Baltic amber, suggests a once much wider distribution, possibly during Eocene “greenhouse earth” climatic conditions, with subsequent extinction leaving only a relict fauna in Australasia. With geological evidence suggesting New Caledonia was largely submerged in the early Paleogene and only emergent in the late Eocene, the New Caledonian Atlatlia fauna possibly originated by dispersal from Australia in the early to mid-Cenozoic.bitterfeld amberkashubia gen. nov.eridanomyia gen. nov. |
| spellingShingle | Dan Bickel John Martin The pseudo-Gondwanan genus Atlatlia (Diptera: Dolichopodidae) from Australia, New Caledonia, and Baltic amber, with the description of two new genera Records of the Australian Museum bitterfeld amber kashubia gen. nov. eridanomyia gen. nov. |
| title | The pseudo-Gondwanan genus Atlatlia (Diptera: Dolichopodidae) from Australia, New Caledonia, and Baltic amber, with the description of two new genera |
| title_full | The pseudo-Gondwanan genus Atlatlia (Diptera: Dolichopodidae) from Australia, New Caledonia, and Baltic amber, with the description of two new genera |
| title_fullStr | The pseudo-Gondwanan genus Atlatlia (Diptera: Dolichopodidae) from Australia, New Caledonia, and Baltic amber, with the description of two new genera |
| title_full_unstemmed | The pseudo-Gondwanan genus Atlatlia (Diptera: Dolichopodidae) from Australia, New Caledonia, and Baltic amber, with the description of two new genera |
| title_short | The pseudo-Gondwanan genus Atlatlia (Diptera: Dolichopodidae) from Australia, New Caledonia, and Baltic amber, with the description of two new genera |
| title_sort | pseudo gondwanan genus atlatlia diptera dolichopodidae from australia new caledonia and baltic amber with the description of two new genera |
| topic | bitterfeld amber kashubia gen. nov. eridanomyia gen. nov. |
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