|Engelmann's Prickly Pear, Opuntia engelmanni|
|Cactus Bees, Diadasia sp.|
|Clerid beetles Trichodes ornatus|
The two color morphs occur equally among the larger females and the small males, and there seems to be no mating preference related to color. Still, three is a crowd.
|Bruchid Mimosestes amicus|
|Listrus, a dasytin Melyrid|
Where so many insects come together predators will also hang around. Here is one predator stalking another. But the little jumping spider did not attack the tiny Attalus, his aposematic colors may have warned her off.
|Staghorn Cholla Trichopuntia versicolor|
Prickly Pear Cacti (Opuntiae) and their close relatives, the Chollas (Cylindropuntia or in older literature still also Opuntia) dominate our Sonoran desert with an abundance of species. Every day seems to bring new color schemes. But the flowers are all very similar in their simple architecture and they are visited and pollinated by the same army of insects.