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Genus Pseudomasaris

Pseudomasaris zonalis - female Pseudomasaris edwardsii - male Pseudomasaris phaceliae - female Another Male Pollen Wasp from Tulare Co - Pseudomasaris vespoides - male The wasp that nearly got away - Pseudomasaris edwardsii? - Pseudomasaris - female Pseudomasaris vespoides - female Bembicini?? - Pseudomasaris Pseudomasaris vespoides? - Pseudomasaris vespoides - male
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)
Genus Pseudomasaris
Explanation of Names
Pseudomasaris Ashmead 1902
14 spp. in our area, 15 total(1)
key to spp. in(2)
w NA north to 50°N(3)
Semiarid to arid areas where preferred plants occur
Mainly oligolectic, favoring Phacelia, Eriodictyon (both Hydrophyllaceae s.s.), or Penstemon species. Adults may take nectar from plants of other families; females provision offspring with a mixture of pollen and nectar.(3)
According to Rob Longair, tend to be limited to mid-elevations and are often very seasonal, appearing over a few weeks in early- to mid-summer in Colorado and Alberta. They build mud nests on rocks; these are very hard to find.
Print References
Parker F.D. (1967) Notes on the nests of three species of Pseudomasaris Ashmead (Hymenoptera: Masaridae). Pan-Pac. Entomol. 43: 213-216 (Full text)
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.