Ueber einige Syrphiden. (Beitrag zur Dipterenfauna Thüringens.)
Published in Wiener Entomologische Zeitung, in 1884, in volume 3, pages 197-200
Date published:1884
Published in Wiener Entomologische Zeitung, in 1884, in volume 3, pages 197-200
Date published:1884