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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » Orthorrhapha » Tabanomorpha » Horse and Deer Flies (Tabanidae) » Pangoniinae » Pangoniini » Pegasomyia
Photo#1384423
Fly? - Pegasomyia - male
Copyright © 2017 George Williams

Fly? - Pegasomyia - Male
Cold Spring Trail, Los Padres National Forest, Santa Barbara County, California, USA
June 13, 2017
Size: 2.5cm
Found on Eriogonum fasciculatum flower at 10:15AM
N34.4876224, W119.6369699 elev: ~1000m

At first glance I assumed this was a honeybee, but it was about half again as big (there were also honeybees nearby to compare against), and it has a face like a fly's (and I only see one pair of wings)

Images of this individual: tag all
Fly? - Pegasomyia - male Fly? - Pegasomyia - male
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Contributed by George Williams on 13 June, 2017 - 5:27pm
Last updated 22 June, 2019 - 12:56am

Maybe. MiddleKauf & Lane (198
Maybe. MiddleKauf & Lane (1980) mention males of Stonemyia californica (as Pilimas) are different from Pegasomyia ruficornis (as Pilimas) by the "scape and pedicel with many black hairs; flagellum dark; scape no longer than wide, the sides divergent apically". The scape looks slightly longer than in the male for S. californica in the guide, but I can't be certain about the colors of the flagellum and hairs on the scape and pedicel. If it is Pegasomyia, then it would be P. ruficornis, as the integument of the thorax is clearly dark, not yellow.
… Arturo Santos, 27 May, 2020 - 4:20pm login or register to post comments

Moved
Moved from Pangoniini.
… John S. Ascher, 22 June, 2019 - 12:56am login or register to post comments

Moved
Moved from Horse and Deer Flies.
… John S. Ascher, 24 June, 2017 - 1:43am login or register to post comments

This looks like the same species I'm seeing in Orange
All males so far, patrolling their territory.
… James Bailey, 13 June, 2017 - 8:10pm login or register to post comments

 
Turns out mine are this species
… James Bailey, 13 June, 2017 - 8:11pm login or register to post comments

Moved
Moved from ID Request.
… Ken Wolgemuth, 13 June, 2017 - 6:25pm login or register to post comments

Male - Tabanid
This might be something close to a male Stonemyia fera, but I'm not sure. The other images of that species are all females, at this time. (western)
… Bob Biagi, 13 June, 2017 - 5:58pm login or register to post comments

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