The metamorphosis from larva to adult in dobsonflies is one of the simplest of the holometabolous orders,[REF] yet the life cycle begins with an intriguing ritualized courtship display (most of the following comes from Simonsen et al. 2008 [REF] and all pertains to Corydalus; other courtship rituals remain unknown).
Oviposition occurs along rocky walls of streams at night, from May to September in Corydalus [REF].