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Discussion of 2018 gathering

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

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Photos of insects and people from the 2012 gathering in Alabama

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Family Lonchaeidae - Lance Flies

Lonchaeidae Larvae and Ovipositing on cactus stump - female Shiny Black Fly Fly - female Milichiidae? Lonchaeidae lance fly - female
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Acalyptratae")
Superfamily Tephritoidea
Family Lonchaeidae (Lance Flies)
Explanation of Names
Lonchaeidae Rondani 1856
~120 spp. in 6 genera in our area (72 spp. of Lonchaea and 36 of Dasiops)(1); >500 spp. in 8 genera total(2)
Two species that look alike, ID tips:
In Fanniidae Sc and R1 are widely separated and Sc is straight for most of its length.
In Lonchaeidae Sc is close to R1, the space between them is often darker, and the wing margin bulges out before the tip of Sc.
[John F. Carr]
Most larvae live behind bark of dead trees; some live on decaying fruits or vegetables.
Some feed on larvae of bark beetles.
Life Cycle
Click on an image to view the life cycle:
Mostly saprophagous - the larvae feed on dead or damaged plants, although some also feed on live, healthy plants. Several species of lonchaeids form swarms near or above trees, hovering and milling around in the air. This behavior is common in several families of flies (midges, black flies, dance flies, etc.), but lonchaeids are one of the few groups of "higher" flies (calyptrates and acalyptrates) that do it.(Comment by Terry Wheeler)
Some can be considered beneficial