Liadyxianus kirejtshuki, Prokin, Alexander A., Petrov, Pyotr N., Wang, Bo & Ponomarenko, Alexander G., 2013

Prokin, Alexander A., Petrov, Pyotr N., Wang, Bo & Ponomarenko, Alexander G., 2013, New fossil taxa and notes on the Mesozoic evolution of Liadytidae and Dytiscidae (Coleoptera), Zootaxa 3666 (2), pp. 137-159 : 143-145

publication ID

https://doi.org/ 10.11646/zootaxa.3666.2.2

publication LSID

lsid:zoobank.org:pub:1F8D4E8A-2447-4556-9B98-D8229D858194

DOI

https://doi.org/10.5281/zenodo.5680606

persistent identifier

https://treatment.plazi.org/id/03AB6D60-FF99-D23E-FF44-0E0AB26A4802

treatment provided by

Plazi

scientific name

Liadyxianus kirejtshuki
status

sp. nov.

Liadyxianus kirejtshuki sp. n.

Etymology: In honour of the coleopterist A.G. Kirejtshuk; noun in the genitive case.

Material: Holotype MNHN A31864 View Materials , counter impression of beetle; China, probably Huanbanjigou (label indicates only formation); Early Cretaceous , Yixian Formation.

Description ( Figs. 6, 7 View FIGURES 5 – 7 ): Light coloured beetle. Head triangular, 1.5 times as wide as long. Pronotum 3.6 times as wide as long, with posterolateral angles rounded. Maximum body width situated at level of abdominal ventrite 1. Mesocoxae located close to each other. Mesofemur not dilated basally. Maximum length of metacoxal plate 0.9 times as great as maximum length of lateral lobe of metaventrite (LC/LV = 0.9). Metacoxal processes more or less conjointly truncate, with posterior margins appearing somewhat sinuate, reaching posterior margin of abdominal ventrite 1. Metafemur with sides slightly rounded. Metatibia slightly dilated towards its apex, slightly longer than metafemur; metatarsomere 1 somewhat shorter than metatarsomeres 2 and 3. Abdominal tergite 4 with round spiracle dorsally.

Measurements: Body length, 7.4 mm; body width, 3.7 mm; elytron length, 5.9 mm.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Dytiscidae

Genus

Liadyxianus

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