Hesperinus electrus¸male, head. Scale bar: 0.1 mm.
Part of: Skartveit J (2021) A new fossil species of the genus Bibio, with an update on bibionid flies from Baltic and Rovno amber (Diptera, Bibionidae). Deutsche Entomologische Zeitschrift 68(1): 81-99. https://doi.org/10.3897/dez.68.60611