Archicupes storozhenkoi Yan & Strelnikova, 2025

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, Zootaxa 5715 (1), pp. 494-518 : 503-504

Archicupes storozhenkoi Yan & Strelnikova , sp. nov.

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( Fig. 2 )

Material. Holotype — PIN, No. 5890/8. Part and counterpart of isolated elytron, left.

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

Diagnosis. Epipleural margin with small cells, forming two parallel rows near the humerus, at midlength become a singular row. Elytron with four visible veins, vein 3 reaching at least at elytral distal fourth, vein 6 is stemming from 4 at the level of humerus, enclosing the vein 5, all reaching beyond elytral midlength. Field III is widest at the elytral base.

Description. Elytron with maximum width at distal third, apex pointed, asymmetrical, not elongated into thin, tail-like extension. Cells rather large, rounded, organized irregularly, without maculae. Cells of different shapes, mostly round, or rounded-oval, some deformed and concave, usually smaller at the elytral base. Cuticular surface between cells glabrous. Singular row of cells between first vein and epipleural carina, field III is extended at the base and has up to 4 cells, then reduced to two rows. Number of cells varies from single to double in fields IV and V. There are 3–4 cells row in the field VI. Cells somewhat organize uniformly at elytron`s apical fourth.

Measurements (in mm). Elytron length 5.8, width 1.8.

Etymology. After prominent entomologist Sergei Yu. Storozhenko.

Remarks. Species below were attributed to Permocupedidae for having more than three veins, lattice elytra cell pattern and small overall size. The specimen was attributed to the genus Archicupes for having two rows of cells in a first field and three central veins having a common base, also for the lack of vein closest to sutural margin ( A2 sensu Ponomarenko 1969).

Comparison. Differs from most other species in having elytral apex not extended into tail-like structure, also in three rather than two central veins having a common base and field III being widest at the base.

Figures

FIGURE 2. Archicupes storozhenkoi Yan & Strelnikova, sp. nov., the holotype PIN, No. 5890/8 photograph (A), electron micrograph (B) and interpretative line drawing (C). Scale bars = 1.0 mm.