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
Upcoming Events

National Moth Week photos of insects and people. Here's how to add your images.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

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.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


TaxonomyBrowseInfoImagesLinksBooksData
Photo#507225
Yellowjacket Fly (Chrysotoxum sp.), Family Syrpidae? on a Phacelia in the Lucerne Valley portion of the Mojave Desert - Pseudomasaris maculifrons

Yellowjacket Fly (Chrysotoxum sp.), Family Syrpidae? on a Phacelia in the Lucerne Valley portion of the Mojave Desert - Pseudomasaris maculifrons
Lucerne Valley, just E of SR 18, San Bernardino County, California, USA
April 13, 2011
Size: 1.5-2 cm long
Is this a Yellowjacket Fly (Chrysotoxum sp.), in the Syrpidae family?

Moved
Moved from ID Request.

Hi David,
good to see that you also look at the little plant customers.
Though blurry, your photo shows the clubbed antenna of a Pseudomasaris female. The extra white spot on the frons is diagnostic for P. maculifrons.
Rather than frassing, I'd like to keep this since it is only the second live female of this sp. on BG.
I just noticed that Aaron Schusteff photographed the same sp., also a female, in the Anza Borrego.

 
Pseudomasaris female on Phacelia
Hartmut,
That you for the detailed information, and I am glad to be able to contribute to the knowledge base on invertebrates. I often photograph inverts when I can, but this one was just plain luck. Too bad she is out of focus. I found her on property in a natural state In Joshua Tree/Creosote Bush Woodland (Yucca brevifolia/Larrea tridentata/Ambrosia dumosa Alliance) at the southwest corner of Camp Rock Road and Rosewood Street in the Lucerne Valley about 1 mile NE of SR 18.
Cheers,
David

 
Thanks for the location information, David -
Though this sp. is known from that general area, its always good to know a specific location.
Which Phacelia sp. was it in? Reminds a vaguely of P. crenulata.

Pseudomasaris, maybe?

not a fly; wasp, fam. Vespidae
others will be more specific, hopefully

 
Yellowjacket Fly versus wasp
That was my first thought, but then I found a photo on a field guide of the Yellowjacket Fly that looked very much like mine, and I don't see the second set of wings in the photo. I as actually photographic the Phacelia and only noticed the insect when viewing the photo.

 
Here is...
Almost same angle of Chrysotoxum in BugGuide...


 
Ah, clearly different than mi
Ah, clearly different than mine. Thanks.

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