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  • Parakseneura sp.


    Images:

    oilshale

    Taxonomy

    Neuroptera

    Kingdom: Animalia
    Phylum: Arthropoda Latreille 1829
    Class: Insecta Linnaeus 1758
    Order: Neuroptera Linnaeus 1758
    Family: Parakseneuridae Yang et al. 2012
    Genus: Parakseneura
    Species: Parakseneura sp.
    Author Citation ​​​​​​​Yang Q, Makarkin VN, Winterton SL, Khramov AV, Ren D. (2012)

    Geological Time Scale

    Eon: Phanerozoic
    Era: Mesozoic
    Period: Jurassic
    Sub Period: None
    Epoch: Middle
    International Age: Callovian to Oxfordian

    Stratigraphy

    Jiulongshan Formation
    Daohugou Bed

    Provenance

    Acquired by: Purchase/Trade

    Location

    Daohugou (Village)
    Ningcheng (County)
    Inner Mongolia (Province)
    China

    Comments

    Taxonomy from Fossilworks.com.

    Diagnosis for the genus from Yang et al. 2012, p. 4: 'Large neuropterans (forewing 50–75 mm long) with the following character states: labial palpi stout, relatively short; antennae stout, filiform, apparently much shorter than forewing length; two tibial spurs straight, shorter than basitarsus; claws big, strongly curved; in both wing, humeral veinlet well-developed, strongly recurrent, branched; presumed ScA short, fused with ScP within humeral area; membrane covered with dense, long hairs; RA (or ScP+RA) entering margin well before wing apex; subcostal crossveins numerous; radial crossveins irregularly spaced, not forming gradate series; in the forewing, MP, CuA, CuP dichotomously branched; presumed AA1+2 very short (found in Parakseneura gen. nov.); AA3+4, AP1+2, AP3+4 deeply forked; in hind wing, presumed AA1+2 very short (found in Pseudorapisma gen. nov.); proximal half of hind wings considerably wider than distal.'

    Determined by Dr. V. Makarkin, Academy of Sciences Vladivostok, Russia, as Paraksneura sp.
    It might be P. albadelta.
    Line drawing from Yang et al., 2012, p. 12:

    image.png.69c728003df00551e09f5ae1c92020b6.png

    References:
    Yang Q, Makarkin VN, Winterton SL, Khramov AV, Ren D. (2012) A Remarkable New Family of Jurassic Insects (Neuroptera) with Primitive Wing Venation and Its Phylogenetic Position in Neuropterida. PLoS ONE 7(9): e44762. doi:10.1371/journal.pone.0044762.




    User Feedback


    Beuatiul veined wings. :b_love1:

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