A new Acartophthalmites Hennig from Eocene Baltic amber (Diptera, Acalyptratae)

A new fossil fly species, Acartophthalmites willii sp. n. (Diptera: Acalyptratae: Opomyzoidea) from Baltic amber (Eocene, 56−33.9 Ma), is described based on a male originally assigned by Hennig (1969) to A. tertiaria Hennig, 1965, who erroneously also referred to it in the same work as “A. electrica Hennig” (unavailable name). The new species, representing the third named species of the extinct genus with unclear familial relationships...