''Ulidia semiopaca'' is a species of ulidiid or picture-winged fly in the genus ''

Ulidia ''Ulidia'' is a genus of picture-winged flies in the family Ulidiidae. Species *''Ulidia albidipennis'' Hermann Loew, Loew, 1845 *''Ulidia apicalis'' Johann Wilhelm Meigen, Meigen, 1826 *''Ulidia atrata'' Hermann Loew, Loew, 1868 *''Ulidia atro ...

'' of the family

Ulidiidae The Ulidiidae (formerly Otitidae) or picture-winged flies are a large and diverse cosmopolitan family of flies (Diptera), and as in related families, most species are herbivorous or detritivorous. They are often known as picture-winged flies, al ...

References

semiopaca Insects described in 1845 {{Ulidiidae-stub