Some carpenter bees will bite straight through the flower bypassing the stamens and stigma. Sometimes it's just an anatomy mismatch - like very small bee speci

Some carpenter bees will bite straight through the flower bypassing the stamens and stigma. Sometimes it's just an anatomy mismatch - like very small bee species and big open flowers. https://en.wikipedia.org/wiki/Nectar_robbing https://en.wikipedia.org/wiki/Nectar_robbing