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

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

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington

TaxonomyBrowse
Info
ImagesLinksBooksData

Subfamily Masarinae - Pollen Wasps

Pseudomasaris wheeleri - female Pseudomasaris zonalis - female Pseudomasaris possibly vespoides - Pseudomasaris vespoides - female Northern Pseudomasaris - Pseudomasaris marginalis - female 10 May 2010 - Mud Dauber Nest - Pseudomasaris Female Pseudomasaris on Phacelia in Anza-Borrego - Pseudomasaris maculifrons - female Pseudomasaris vespoides - male Male Pseudomasaris? - Pseudomasaris vespoides
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Ants, Bees and Stinging Wasps)
Superfamily Vespoidea (Yellowjackets and Hornets, Paper Wasps; Potter, Mason and Pollen Wasps and allies)
Family Vespidae (Yellowjackets and Hornets, Paper Wasps; Potter, Mason and Pollen Wasps)
Subfamily Masarinae (Pollen Wasps)
Numbers
14 spp. in our area (all Pseudomasaris), ~300 spp. in 14 genera of 2 tribes total(1)
Size
10-20 mm
Identification
Yellow and black. FW with only two submarginal cells. Clubbed antennae.
key to NA spp. in(2)
Range
worldwide; in NA, western(1)
Food
larvae (unlike those of other vespids) feed on pollen and nectar
Life Cycle
The females make nests of mud or sand attached to twigs or rocks. They provision the nests with pollen and nectar and lay their eggs. The eggs hatch into larvae that eat the provisions, then pupate and emerge as adults.
Print References
Bradley J.C. (1922) The taxonomy of the Masarid wasps, including a monograph of the North American species. UC Publ. Entomol. 1: 369-464. (Full text)
(3)
Works Cited
1.Checklist of species of the subfamily Masarinae (Hymenoptera, Vespidae)
Carpenter J.M. 2001. American Museum novitates 3325. 40 pp.
2.New records of Pseudomasaris Ashmead (Hymenoptera:Vespoidea, Masaridae), with notes on P. phaceliae Rohwer and P. cazieri Bohart
Richards O.W. 1966. Proc. R. Ent. Soc. London (B) 35(3-4): 47-55.
3.The Pollen Wasps
Sarah K. Gess. 1996.