A new fossil green lacewing (Neuroptera: Chrysopidae) from the early Eocene Driftwood Canyon, Canada

Lithochrysa borealis sp. nov. (Neuroptera: Chrysopidae: Nothochrysinae) is described from the early Eocene locality at Driftwood Canyon (British Columbia, Canada). The forewing venation of the new species is similar to that of the late Eocene L. wickhami (Cockerell, 1914) from Florissant (Colorado, U.S.A.), but is distinguished from it by a slightly longer intramedian cell and distinctly longer branches of RP to CuA between the pseudocubitus and the posterior margin. Previously, we reported a chrysopid specimen from Driftwood Canyon which, although it undoubtedly represented a new species, we declined to name by its unclear systematic position, and so treated it as Nothochrysinae species A (Makarkin & Archibald 2013). Recently, however, examination of fossils of the family from Florissant (V. Makarkin, G. Antell, B. Archibald, in preparation) has shown that it is closely related to species of Lithochrysa Carpenter 1935. We are now able to describe and name a new species of that genus based on this specimen.