Miss Mattie Wadsworth, an amateur entomologist from rural Maine, stands out as one of the early women authors in Entomological News. Wadsworth's correspondence with Philip P. Calvert, prominent and longtime member of the American Entomological Society, shows Calvert's important role in cultivating her entomological interests. Celithemis martha (Odonata: Libellulidae) was named in honor of Wadsworth by E. B. Williamson.