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Two new species of Itaphlebia Sukatsheva, 1985, I. procerasp. nov. and I. eleganasp. nov., are described and illustrated from the latest Middle Jurassic Jiulongshan Formation of Daohugou, Inner Mongolia, China. Based on fossil specimens with wings, these new species are established and assigned to Itaphlebia by a combination of three forewing characters: Sc with three branches ending at C, the four-branched Rs (R2 to R5) originating distad of M (vs. three-branched RS (R2+3 undivided) in all other fossil and extant nannochoristids), and M forking with four branches; and a hind wing character of Sc simple and short, terminating at C well before the pterostigma. Furthermore, this is the first report of long and robust setae present on the anal veins of the forewing for I. eleganasp. nov. in fossil Nannochoristidae.

Examination of a diverse and abundant collection of Middle–Upper Jurassic scorpionflies from the Jiulongshan Formation of Daohugou village in Inner Mongolia, China, has enabled a further delimitati...

This paper presents a further step in a revision of the fossil family Orthophlebiidae. A new fossil subfamily, Gigaphlebiinae subfam. nov., and two new genera, Gigaphlebia gen. nov. and Longiphlebia gen. nov., are established within Orthophlebiidae. The new subfamily comprises species characterized by a large size, ninebranched (exceptionally eight-branched) radial sector in both wings, and medial sector with six branches in the fore- and five in the hindwing. Four species, Gigaphlebia grandis comb. nov., G. palmaris comb. nov., G. riccardii comb. nov., and Longiphlebia stigmosa comb. nov. were transferred from genus Orthophlebia and Mesopanorpa. The diagnoses of newly established taxa are presented, all transferred species are redescribed and refigured. The significance of orthophlebiid taxonomy in the phylogeny of the Panorpoidea is discussed.

Cao, Y., Shih, C., Bashkuev, A. & Ren, D., September 2015. Revision and two new species of Itaphlebia (Nannochoristidae: Mecoptera) from the Middle Jurassic of Inner Mongolia, China. Alcheringa 40, XX–XX. ISSN 0311-5518.Two new species of Itaphlebia Sukatsheva, 1985, Itaphlebia longiovata and I. amoena (Nannochoristidae Tillyard, 1917), are described and illustrated from the Middle Jurassic Jiulongshan Formation of Daohugou, Inner Mongolia, China. Previously described Middle Jurassic nannochoristid genera, Chrysopanorpa Ren in Ren et al., 1995 and Protochoristella Sun, Ren & Shih, 2007b, together with Stylopanorpodes and Netropanorpodes Sun, Ren & Shih, 2007a (originally assigned to Mesopanorpodidae) are revised and considered to be synonyms of Itaphlebia. The following tentative species synonymies are proposed: Protochoristella formosa and Stylopanorpodes eurypterus = Itaphlebia ruderalis (Ren in Ren et al., 1995), comb. nov.; Netropanorpodes sentosus = I. jeniseica Novokshonov, 1997a, syn. nov.; and Pro...