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Species Pseudomasaris coquilletti

Pseudomasaris coquilletti - female Pseudomasaris coquilletti - male Pseudomasaris coquilletti - male Quick Wasp, likely P. coquilletti - Pseudomasaris coquilletti - female Quick Wasp - Pseudomasaris coquilletti - female Some sort of sand wasp? - Pseudomasaris coquilletti Pseudomasaris coquilletti - male Pollen-Wasp on Phacelia ramosissima - Pseudomasaris coquilletti - female
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
Species coquilletti (Pseudomasaris coquilletti)
Explanation of Names
Pseudomasaris coquilletti Rohwer 1911
In females, the yellow of upper orbits are produced toward ocelli (not so in the similar zonalis); humeri are more rounded than in zonalis (which have humeri with an obtuse anterior ridge):

Antennal segments VI-VII in males are widened gradually to a less well defined club, not much wider than segment VII; front of mid-tibia emarginate (with an apical notch).
OR, CA, UT, AZ(1)
Works Cited
1.Checklist of species of the subfamily Masarinae (Hymenoptera, Vespidae)
Carpenter J.M. 2001. American Museum novitates 3325. 40 pp.