Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Infraorder Bibionomorpha - Gnats, Gall Midges, and March Flies

small fly Dance fly? - Bibio albipennis - male Dip Larvae?   - Bibio A small fly on a thistle Bibio femoratus? - Bibio femoratus - female Vashon BioBlitz 2012 - ID for fly with long antennae? Macrocera - Macrocera inconcinna Sciaridae? - male
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Nematocera" (Non-Brachycera))
Infraorder Bibionomorpha (Gnats, Gall Midges, and March Flies)
Habitat
Generally terrestrial, in contrast to other Nematocera which are predominantly aquatic.
Remarks
Probably not a monophyletic assemblage. Ordered this way for convenience, based on the Tree of Life.

Most of the species, genera, and families belong to superfamily Sciaroidea, the fungus gnats and gall midges, which probably is monophyletic.
Internet References