The Tiny Small Carpenter (Ceratina nanula) is a bee in the family Apidae, found in the San Francisco Bay Area.
This species is one of two members of the Ceratina genus commonly found at garden sites in California.
Its flight season is from spring until autumn, with peak flight activity from April through August.
Tiny small carpenter bees are solitary bees that excavate nests in pithy or soft-core dead stems of plants such as Sambucus, Rubus, Brassica, Helianthus, Phlomis and Salvia mellifera.