Matutinal is a term used in the life sciences, to describe an organism that's only or primarily active in the pre-dawn hours or early morning. The variant term matinal is used apparently only in entomology, often used in literature on the natural history and ecology of bees. There are numerous genera and species of bees which exhibit this behavior, presumably to escape from competition for resources, and many flowers (for example squash and morning glory) have adapted to this particular pollinat… (More on Matutinal)