Full reference: V. A. Blagoderov. 1997. Fungus Gnats of the Tribe Gnoristini (Diptera, Mycetophilidae) from the Lower Cretaceous of Transbaikalia. Paleontological Journal 31(6):609-615
Type specimen: PIN 3064/9779, an exoskeleton. Its type locality is Baissa (PIN collection 3064, bed 31), which is in a Berriasian lacustrine - large marl/siltstone in the Zaza Formation of the Russian Federation.
Average measurements (in mm): body length 4.80, wing length 4.20