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

Upcoming Events

BugGuide is a National Moth Week Partner. How to add your National Moth Week 2021 photos. July 17-25.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

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

Previous events

Pseudomasaris vespoides - female

Pseudomasaris vespoides - Female
Rancho Santa Ana Botanic Garden, Claremont, Los Angeles County, California, USA
April 20, 2003
Size: ≧ 24mm
Fell out of corolla of Penstemon spectabilis.

Species ID by Doug Yanega (Dept. of Entomology, Entomology Research Museum, UC Riverside, CA).

Images of this individual: tag all
Pseudomasaris vespoides - female Pseudomasaris vespoides - female

Just found a highly informative book on the Masarinae, including western North America's representatives:

The Pollen Wasps - Ecology and Natural History of the Masarinae. Gess, Sarah K. (1996) Harvard University Press.

Sarah Gess is Assistant Curator in the Department of Entomology of the Albany Museum, working in association with the Department of Entomology of Rhodes University, Grahamstown, South Africa.

Thanks so much, Eric. I was quite certain it was some kind of vespid, but I just couldn't find any image with those clubbed antennae. I just have to find some good literature, any suggestions?
Now I'll pay special attention when around Penstemon!

Moved to guide
I had to create a new page. We didn't have any in this subfamily, so it is a nice addition. I am learning, too, since I am interested in flower visitors.

Wow! This is a female "pollen wasp" in the genus Pseudomasaris, family Vespidae, subfamily Masaridae. Our handful of species in North America are apparently associated ONLY with Penstemon, so even that information fits. Good notetaking! Great portrait showing the bizarre, clubbed antennae. Males have very long, clubbed antennae.

Pseudomasaris and flowers
Pseudomasaris species are also found foraging at a few other groups of flowers, including Phacelia and Eriodictyon, both members of the Hydrophyllacea. This may be a size-based association with larger species of Pseudomasaris using Penstemon and smaller species using the others. I'll post a (not outstanding) picture of a male Pseudomasaris vespoides.

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