Diadocidiidae
Encyclopedia
Diadocidiidae is a family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 of Diptera
Diptera
Diptera , or true flies, is the order of insects possessing only a single pair of wings on the mesothorax; the metathorax bears a pair of drumstick like structures called the halteres, the remnants of the hind wings. It is a large order, containing an estimated 240,000 species, although under half...

.
There are two described genera with over twenty species. Diadocidiidae are found worldwide, except in Africa
Africa
Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

 and Antarctica. It is usually considered close to Keroplatidae, Bolitophilidae
Bolitophilidae
Bolitophilidae is a family of Diptera comprising only one genus, Bolitophila, with contains around 40 Palaearctic and about 20 Nearctic species, and 3 species from the Oriental region....

 and Ditomyiidae
Ditomyiidae
Ditomyiidae is a family of Diptera comprising only two genera: Ditomyia and Symmerus....

, and was previously included in Mycetophilidae
Mycetophilidae
Mycetophilidae is a family of small flies, forming the bulk of those species known as fungus gnats. There are approximately 3000 described species in 150 genera but the true number of species is undoubtedly much higher...

. They are woodland
Woodland
Ecologically, a woodland is a low-density forest forming open habitats with plenty of sunlight and limited shade. Woodlands may support an understory of shrubs and herbaceous plants including grasses. Woodland may form a transition to shrubland under drier conditions or during early stages of...

flies. The larvae spin silken tubes under bark or in dead logs.

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