Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar

TaxonomyBrowseInfoImagesLinksBooksData
Photo#266664
Heleomyzid-like flies - Trixoscelis - male - female

Heleomyzid-like flies - Trixoscelis - Male Female
Madrona Marsh Preserve, Torrance, Los Angeles County, California, USA
April 14, 2009
Size: ~ 3 mm
Found a few of these on a cool Spring day on the leaves of a Coast Live Oak (Quercus agrifolia).

They resemble some Heleomyzids, which frequent lush foliage, but also carrion ...
I couldn't find any Heleomyzid-like fly associations with Coast Live Oaks.

Any help towards identification is greatly appreciated.

Moved
Moved from Trixoscelis.

 
Thanks a lot for creating a page for this cozy couple, John !

T. nuda species complex (see comment below)
They appear to be T. nuda or one of the other 7 species in this group.

Moved
Moved from Heleomyzidae.

Moved
Moved from Trixoscelis.

Trixoscelis
The photos are a bit too fuzzy to be sure, but I think these are Trixoscelis (Heleomyzidae).

 
T. nuda group?
They ARE a bit too fuzzy to be sure that they are Trixoscelis. If they are Trixoscelis then they key to the T. nuda species complex which is composed of 8 species (4 of which are new). We are in the final stages of a revision of the North American Trixoscelis at this point and will provide a full treatment of this species group.

 
Thanks a lot, George !
Much appreciated !

I look forward to your Nearctic Trixoscelis Revision.

May I ask what feature(s) you are looking for, that are too fuzzy in the photos ?

 
Awesome ! Thank you much for your help, Joel !
I really appreciate that !

Did you by chance see this dorsal view image, which I had linked to the photo of the couple ?
This individual was sitting on an adjacent leaf and looks like the same species.
The dorsal view and wing veneration might confirm or even narrow the identification.

It seems that the link got lost, perhaps due to these photos residing in the 'ID Request' section.

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.