| Diadocidiidae Temporal range:
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| Diadocidia ferruginosa | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Diptera |
| Suborder: | Nematocera |
| Infraorder: | Bibionomorpha |
| Superfamily: | Sciaroidea |
| Family: | Diadocidiidae Winnertz, 1863 |
| Genera | |
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| Diversity | |
| 23 species | |
The Diadocidiidae are a family of flies (Diptera), containing one extant genus with over 20 species and one extinct genus.[1][2] Diadocidiidae are found worldwide, except in Africa and Antarctica. They are usually considered close to the Keroplatidae, Bolitophilidae, and Ditomyiidae,[3] and used to be included in the Mycetophilidae. They are woodland flies, found in shaded places in forests or near streams. The larvae spin silken tubes under bark or in dead logs, and feed on hymenium of Polyporaceae fungi. The average body length for adults is around 2.5–5.6 mm.[4]
