Published October 28, 2025 | Version v1
Taxonomic treatment Open

Cytocupes magnus Yan & Felker & Strelnikova 2025, sp. nov.

  • 1. Borissiak Paleontological Institute of the Russian Academy of Sciences, Profsoyuznaya str. 123, Moscow 117647, Russia

Description

Cytocupes magnus Yan & Strelnikova, sp. nov.

urn:lsid:zoobank.org:pub: E08412CD-3FDD-412A-A821-D32E712957DF

(Fig. 3)

Material. Holotype — PIN, No. 5890/10. Isolated elytron, left.

Locality and horizon. Alisa locality, Nidym Formation, Lower Triassic.

Diagnosis. Veins 4 and 5 are very closely spaced. Veins 2 and 3 are merging at the level of elytral distal 1/5. Veins 4 and 5 half as long as the elytron. Double rows of cells nearly touching each other’s borders, in the field III, IV and VI.

Description. Elongated elytron, 4 times as long as wide, carinated, apex symmetrical, rounded. Epipleural and sutural margins lacks cells or punctures. Humeral bulge weakly defined. Veins 2 and 3 are merging at the level of elytral distal 1/5. Veins 4 and 5 are close to each other, half as long as the elytron. Fields III, V and VI has straight double row of cells, field IV have 1–2 rows of cells. Field IV are expanded at the base and has up to 3 cells. Cells roundish, rarely oval-shaped, without encrusted maculae. Cells larger near humeral area, size decrease very slightly towards the apex.

Measurements (in mm). Elytron length 11.6, width 2.9.

Etymology. After Latin “ large ”, due to considerable elytron size.

Remarks. The specimen was attributed to the genus Cytocupes due to having veins 2 and 3 merging near elytral apex; having short vein 4 (CuA sensu Ponomarenko 1969) near elytral base; lack of cells on epipleural margin.

Comparison. Differs from other congener species in large size; having elytral apex not elongated into tail-like extension; field IV being wider than V, having 3 cells in it instead of 6.

Notes

Published as part of Yan, Evgeny V., Felker, Anastasia S. & Strelnikova, Olesya D., 2025, Early Triassic beetle fauna (Insecta: Coleoptera) from the Eastern Siberian locality Alisa quarry showing late Permian taxa composition, pp. 494-518 in Zootaxa 5715 (1) on pages 504-505, DOI: 10.11646/zootaxa.5715.1.43, http://zenodo.org/record/17888734

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Linked records

Additional details

Biodiversity

Collection code
PIN
Material sample ID
5890/10
Scientific name authorship
Yan & Felker & Strelnikova
Kingdom
Animalia
Phylum
Arthropoda
Order
Coleoptera
Family
Permocupedidae
Genus
Cytocupes
Species
magnus
Taxon rank
species
Taxonomic status
sp. nov.
Type status
holotype
Taxonomic concept label
Cytocupes magnus Yan & Strelnikova, 2025

References

  • Ponomarenko, A. G. (1969) The historical development of archostematan beetles. Transactions of the Paleontological Institute, Academy of Sciences of the USSR, 125, 1-238. [in Russian]