On an October 2 excursion to Boyce Thompson Arboretum, there were many species of dragonflies and damselflies active. None were more prolific than the beautiful Mexican Amberwings (Perithemis intensa), which numbers in the dozens, if not hundreds, at Ayer Lake.
|Mexican Amberwing Dragonfly|
In most of Arizona, the Mexican Amberwing is the prominent amberwing, especially in central Arizona around Phoenix. The Eastern and Slough Amberwing is seen in the SE corner of AZ, though.
The photo below show another Mexican Amberwing, focused on the wings. This provides an excellent look at the wings and vein structure.
|Mexican Amberwing Wing Structure|
The second is much more comprehensive, and highly recommended for any amateur or professional naturalist. Dragonflies and Damselflies of the West, by Dennis Paulson