Bibio marmoratus Pongracz, 1928: 186 .

Described from a single specimen (female) in Hungarian National Museum. The Radoboj material in the Hungarian National Museum was destroyed by a fire in 1956 (Alfréd Dulai, in litt.). The specimen was illustrated by Pongracz (1928: Fig. 49) and had a total length of 14 mm and wing length 10 mm. Judging from this illustration the species is probably not a bibioninid, the habitus (slender antennae, slender legs with rather long spurs, elongate coxae, wing with dark patterning, pointed abdomen) suggests Mycetophilidae .