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Photo#562595
Male Pseudomasaris from northeast CA - Pseudomasaris zonalis - male

Male Pseudomasaris from northeast CA - Pseudomasaris zonalis - Male
SFSU Sierra Nevada Field Campus, just east of Bassetts, Sierra County, California, USA
July 13, 2011
This male pollen wasp was patrolling and feeding at a population of Phacelia mutabilis growing in an opening along the north bank of the Yuba River. The surrounding habitat is coniferous forest at about 5550' elevation.

A series of images of a female, nectaring and collecting pollen from the same site, is posted here.

Images of this individual: tag all
Male Pseudomasaris from northeast CA - Pseudomasaris zonalis - male Male Pseudomasaris from northeast CA - Pseudomasaris zonalis - male

Moved
Moved from Pseudomasaris.

Hi Aaron,
Congratulations! This male, as well as your photos of the female, are P. zonalis.
I can elaborate later, have other work to do right now.

 
Thanks Hartmut, I was hoping you'd be able to ID these :-)
Glad the images were sufficient for you to recognize them as P. zonalis. I'd love to study Richards' Pseudomasaris papers, but I haven't yet gotten to UC Berkeley Library to look for them. Thankfully, it appears you've included a lot of details from those works on the species Info Page...although I had difficulty making out some of the characters mentioned there in my images. I guess this sighting somewhat extends the CA range given on the info page...as Sierra County is "four counties to the north" of Alpine County.

 
Sorry, Aaron - I've corrected the entry
dealing with known distribution. More later.

 
Okie Doke - No Rush
Well, at least we now have some P. zonalis posts from a locale other than (and fairly distant from) the San Gabriel Mountains.

I'll look forward to further comments, if and when you get the chance. In the meantime...Viva Pseudomasaris! :-)

 
The male's antennae are distinctive -
Antennal segments VI-VII in P. coquilletti are gradually widened to form a less well-defined club.

Aside from being a smaller species, zonalis males have a better defined club with antennal segments VI-VII being less widened.
The other species I'd expect in the general area where you photographed this male are P. vespoides, P. edwardsii, P. coquilletti, possibly P. mcneilli. Very little known about the latter species, though known to use Hydrophyllum as pollen source.

 
"Like"
I am so used to the "Like" button on Facebook that I was looking for it here :)

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