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"Acalyptratae"

Waved Light Fly - Pyrgota undata - male Picture Wing Fly - Delphinia picta Stilt-legged Fly - Rainieria antennaepes - female Fly Seeks ID, #2 - Odontoloxozus longicornis Handsome Little Fly - Minettia lupulina Fly - Drosophila Thick-Headed Fly #1 - Physocephala marginata Marsh Fly - Sepedon
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon "Acalyptratae"
Synonyms and other taxonomic changes
A very diverse paraphyletic group; there is still no consensus on its further subdivision, and many member families remain unassigned to superfamilies
Identification
Antennae 3-segmented, with an arista. Lack the enlarged lower calypter, longitudinal suture on second antennal segment, and greater ampulla that characterize the Calyptratae.
Internet References
list of superfamilies and families (NB: the classification does not reflect real relationships as currently understood)