New Coniopterygidae (Neuroptera) from the upper Cenomanian Nizhnyaya Agapa amber, northern Siberia

Libanoconis siberica sp. nov. and two specimens of uncertain affinities (Neuroptera: Coniopterygidae) are described from the Upper Cretaceous (upper Cenomanian) Nizhnyaya Agapa amber, northern Siberia. The new species is distinguished from L. fadiacra (Whalley, 1980) by the position of the crossvein 3r-m being at a right angle to both RP1 and the anterior trace of M in both wings. The validity of the genus Libanoconis is discussed. It easily differs from all other Aleuropteryginae by a set of plesiomorphic character states. The climatic conditions at high latitudes in the late Cenomanian were favourable enough for this tropical genus, hitherto known from the Gondwanan Lebanese amber. Therefore, the record of a species of Libanoconis in northern Siberia is highly likely.