Abstract
A new genus and two new species of Hemerobiidae (Neuroptera) are described from the late Eocene Baltic amber, i.e., Proneuronema gradatum gen. et sp. nov. and P. minor gen. et sp. nov. Several Early Eocene species (mostly unnamed) from Europe and North America are also considered to belong to this genus, including Proneuronema wehri (Makarkin et al., 2003), comb. nov. The new genus is probably most closely related to the extant genus Neuronema McLachlan, 1869, and therefore assigned to Drepanepteryginae. A critical review of Cenozoic taxa of the Megalomus-like hemerobiids is provided. Prophlebonema Krüger, 1923 is considered as a new subjective synonym of Drepanepteryx Leach, 1815. Plesiorobius Klimaszewski et Kevan, 1986 from the Late Cretaceous is considered as belonging to Hemerobiidae. It is noted that wing venation variability in species of Hemerobiidae (including these fossils) is high. Some of their venational abnormalities (anomalies) may have phylogenetic implications.
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