longhorn bee genus melissodes gathering pollen on a yellow wildflower in colorado

melissodes native species pollination agriculture bee biodiversity blooming blossoms botanical central highlands close coexistence colorado colorful ecology ecosystem entomology environment fauna flora floral foraging grasses habitat insect behavior insects landscape living organisms longhorn meadow natural nature nectar outdoors plant pollen pollinators rocky mountain rural small creatures spring tiny vegetation wild plants wildflower wildlife yellow flower petals genus gathering collects