Atlatlia is a genus of flies in the family Dolichopodidae. It was originally established for two species found in eucalypt forests in Australia, and was later expanded to include a third Australian species, three species from New Caledonia, and a number of extinct species found in Baltic and Bitterfeld amber from the Paleogene. The appearance of Atlatlia in Baltic/Bitterfeld amber suggests that the genus once had a much wider distribution. In males of the Atlatlia grisea species group, the seventh segment of the abdomen is extremely elongated, forming a hypopygial peduncle. The name of the genus is derived from , the Nahuatl word for "spear-thrower", in reference to the male preabdomen which appears to act as an atlatl for the hypopygial peduncle.
Species The genus includes fifteen species, which are divided into two species groups:
Atlatlia grisea group: Atlatlia acra Bickel in Bickel & Martin, 2025 – New Caledonia Atlatlia argenticoxa Bickel in Bickel & Martin, 2025 – New Caledonia Atlatlia cowanae Bickel in Bickel & Martin, 2025 – New Caledonia Atlatlia flaviseta Bickel, 1986 – Australia (Western Australia) Atlatlia grisea Bickel, 1986 – Australia (New South Wales) Atlatlia isolata Bickel in Bickel & Martin, 2025 – Australia (New South Wales) Atlatlia corynoura Bickel in Bickel & Martin, 2025 – Baltic amber, Eocene/Oligocene Atlatlia electrica Bickel in Bickel & Martin, 2025 – Baltic amber and Bitterfeld amber, Eocene/Oligocene Atlatlia licina Bickel in Bickel & Martin, 2025 – Baltic amber, Eocene/Oligocene Atlatlia ulrichi group: Atlatlia angulicauda Bickel in Bickel & Martin, 2025 – Baltic amber, Eocene/Oligocene Atlatlia cryptica Bickel in Bickel & Martin, 2025 – Baltic amber, Eocene/Oligocene Atlatlia penicillata Bickel in Bickel & Martin, 2025 – Baltic amber, Eocene/Oligocene Atlatlia ramosa Bickel in Bickel & Martin, 2025 – Baltic amber, Eocene/Oligocene Atlatlia tonsa Bickel in Bickel & Martin, 2025 – Baltic amber, Eocene/Oligocene Atlatlia ulrichi Bickel in Bickel & Martin, 2025 – Baltic amber and Bitterfeld amber, Eocene/Oligocene
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