Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Interactive image map to choose major taxa Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

National Moth Week was July 19-27, and the Summer 2025 gathering in Louisiana, July 19-27

Photos of insects and people from the 2024 BugGuide gathering in Idaho July 24-27

Moth submissions from National Moth Week 2024

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27


Family Ulidiidae - Picture-winged Flies

Representative Images

Red Fly Black Wings - Delphinia picta small fly - Euxesta pechumani - female fly 3 - Delphinia picta Fly ex inner bark, boxelder - Callopistromyia strigula Chaetopsis? Pennsylvania Fly for ID - Chaetopsis Picture Winged Fly - Pseudotephritina - Pseudotephritina - male - female Black Onion Fly (Tritoxa flexa)? - Tritoxa flexa - male - female

Classification

Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Acalyptratae")
Superfamily Tephritoidea
Family Ulidiidae (Picture-winged Flies)

Synonyms and other taxonomic changes

Otitidae Aldrich 1932 • name that has been used for a long time but Ulidiidae has priority(1)

Explanation of Names

Ulidiidae Macquart 1835

Numbers

2 subfamilies and 7 tribes, with ~130 spp. in ~40 genera of in our area and ~680 spp. in >100 genera worldwide(2)(3)(4)
Overview of our fauna (* –taxa not yet in the guide; classification from(3)):
Family Ulidiidae
SUBFAMILY ULIDIINAE
SUBFAMILY OTITINAE
Genera incertae sedis possibly related to Cephaliini Curranops · Diacrita · *Haigia · Idana · *Psaeropterella · *Tujunga
Otitinae incertae sedis Tetropismenus · *Texasa

Identification

Food

Larvae feed on decaying organic matter, but a few live in roots(4)