Bibionomorpha

Taxobox
name = March flies and allies

---

image_caption = March fly, "Bibio marci"
regnum = Animalia
phylum = Arthropoda
subphylum = Hexapoda
classis = Insecta
subclassis = Pterygota
infraclassis = Neoptera
superordo = Endopterygota|
ordo = Diptera
subordo = Nematocera
infraordo = Bibionomorpha
subdivision_ranks = Families
subdivision = *Anisopodidae - wood gnats
*Bibionidae - march flies and lovebugs
*Bolitophilidae
*Cecidomyiidae - gall gnats
*Diadocidiidae
*Ditomyiidae
*Hesperinidae
*Keroplatidae
*Lygistorrhinidae
*Mycetophilidae - fungus gnats
*Pachyneuridae
*Rangomaramidae
*Sciaridae - dark winged fungus gnats

Bibionomorpha is a infraorder of Nematocera. One of its constituent families, the Anisopodidae, is the presumed sister taxon to the entire suborder Brachycera. Several of the remaining families in the infraorder (those shown without common names) are former subfamilies of the Mycetophilidae, which has been recently subdivided. The family Axymyiidae has recently been removed from the Bibionomorpha to its own infraorder Axymyiomorpha.

Most of the flies in the Bibionomorpha are saprophages or fungivores as larvae, aside from the Cecidomyiidae, which are gall-formers. Some sciarids are common indoor pests, developing large populations in potting soil that has become moldy from overwatering. The larave of Bibionidae sometimes migrate in large snakelike masses in order to minimize dehydration while seeking a new feeding site.

External links

* [http://www.tolweb.org/Bibionomorpha/10499 Tree of Life Bibionomorpha]

Extinct families

The extinct bibionomorph fauna follows:

**Eopleciidae extinct (Lower Jurassic)
**Oligophryneidae extinct (Upper Triassic)
**Paraxymyiidae extinct (Middle Jurassic)
**Protobibionidae extinct (Middle Jurassic)
**Protopleciidae extinct (Pan Jurassic)
**Protorhyphidae extinct (Upper Triassic)
**Protoscatopsidae extinct (Middle Jurassic)
*Superfamily Pleciodictyidea extinct
**Pleciodictyidae - (Upper Triassic)
*Superfamily Protoligoneuridea extinct
**Protoligoneuridae - (Upper Triassic)
*Superfamily Fungivoridea
**Pleciofungivoridae extinct (Upper Triassic) (Lower and Middle Jurassic)
**Palaeopleciidae extinct (Upper Triassic)
**Pleciomimidae extinct (Lower and Middle Jurassic)
**Archizelmiridae extinct (Middle Jurassic)
**Fungivoritidae extinct (Middle and Upper Jurassic)
**Tipulopleciidae extinct (Middle Jurassic)
**Sinemediidae extinct (Middle Jurassic)