| Tanyderidae Temporal range: | |
|---|---|
| | |
| Mischoderus annuliferus | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Diptera |
| Infraorder: | Psychodomorpha |
| Family: | Tanyderidae Osten-Sacken, 1880 |
| Genera | |
| Synonyms | |
Macrochilidae | |
Tanyderidae, sometimes called primitive crane flies, are long, delicate flies with spotted or mottled wings, superficially resembling true crane flies (Tipulidae). Adults are typically found resting on vegetation near streams, while larvae occur in wet, decaying wood or along sandy and gravelly stream margins. Several fossil species are also known.
Members of the family Tanyderidae resemble medium- to large-sized crane flies but retain a number of primitive features, including the full complement of five branches of the radial wing vein—structures that have been lost in most modern flies. [2] These characteristics, combined with their limited diversity of about forty known species, suggest that the group represents a relict lineage within the Nematocera.
Their distribution is fragmented across temperate regions of both hemispheres, with species recorded from southern Africa, Australia, New Zealand, and both North and South America. Tanyderidae are relatively common in southern Chile and New Zealand, where larvae inhabit submerged wood or coarse gravel in flowing streams, but are infrequently encountered elsewhere. [2]
Adult tanyderids are easily recognized by their patterned wings and are often found hanging beneath bridges or from streamside vegetation. Like many lower Diptera, they are frequently attracted to artificial lights at night. [2]