^ abcdefghijklmnMarshall, S. A. (1987). "Systematics of Bitheca, a new genus of New World Sphaeroceridae (Diptera)". Systematic Entomology. 12: 355–380. ISSN0307-6970.
^Rohček, Jindřich; Marshall, Stephen A.; Norrbom, Allen L.; Buck, Matthias; Quiros, Dora Isabel; Smith, Ian (2001). Rohček, Jindřich (ed.). World Catalog of Sphaeroceridae (Diptera). Opava: Slezské Zemské Muzeum. pp. 1–414. ISBN978-8086224213. Retrieved 3 September 2017.
^Deeming, J. C (1980). "A new species of Leptocera Olivier (Diptera: Sphaeroceridae) from Eastern United States". Proceedings of the Entomological Society of Washington. 82: 499–503.