About Stelis louisae Cockerell, 1911
Stelis louisae Cockerell, 1911 is a species of cuckoo bee that belongs to the bee family Megachilidae. This species was first formally described by entomologist Theodore Dru Alison Cockerell in 1911. Its known range covers the eastern United States and the Canadian province of Ontario. Individuals of Stelis louisae have been recorded visiting Helianthus flowers on occasion, and the species is active from March through September each year.