First record of Homalocephala biumbrata (Wahlberg, 1839) from Bohemia (Czech Republic), with notes on adult behaviour (Diptera: Ulidiidae)

Homalocephala biumbrata (Wahlberg, 1839) (Ulidiidae) is a new addition to the fauna of Bohemia, based on records from the locality Na Plachtˇ reserve nr. Hradec Králové (E. Bohemia, Czech Republic). New biological and distributional data about this species are provided together with description of adult courtship behaviour (documented by photography). The importance of this record is discussed.