Flowers and the many faces of those who visit them…

a mason wasp (Monobia quadridens) and a white-faced tachinid fly (Archytas apicifer) sharing the bloom of a wild carrot (a.k.a. bishop’s lace or Queen Anne’s lace; Daucus carota)

brownbelted bumble bees (Bombus griseocollis) foraging on aromatic buttonbush (Cephalanthus occidentalis)

a black and gold bumble bee (Bombus auricomus) weighing down a plains sunflower (a.k.a. petioled sunflower or prairie sunflower; Helianthus petiolaris)…

…and right next door, a metallic sweat bee (Augochloropsis metallica) visiting a different bloom on the same plains sunflower (a.k.a. petioled sunflower or prairie sunflower; Helianthus petiolaris)

a female southern carpenter bee (Xylocopa micans) piercing the base of an amazingly hardy pink Texas skullcap (Scutellaria suffrutescens)^[1][2]

a scoliid wasp (Campsomeris plumipes) enjoying the furry bloom of woolly croton (a.k.a. hogwort or doveweed; Croton capitatus)

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Notes:

1. Beautiful bit of adaptation in this case.  The carpenter bee is too large to fit into the flower, and it lacks a tongue long enough to reach from the opening to the base of the bloom.  So these ingenious insects pierce the base of the flower with their mandibles so they can reach through the hole and access the nectar.  Clever!
2. This herb draws in hummingbirds and insects in large numbers.  It can be entertaining to watch the varied horde compete for the blooms.