Triassocypha prima, Boderau & Montagna & Magnani & Magoga & Shmakov & Engel & Nel & Nel, 2025

Boderau, Mathieu, Montagna, Matteo, Magnani, Fabio, Magoga, Giulia, Shmakov, Alexey, Engel, Michael S., Nel, Patricia & Nel, André, 2025, Triassic iotacyphids shed light on the venation of crown Thysanoptera and their stem relatives (Condylognatha: Holothysanoptera), Arthropod Systematics & Phylogeny 83, pp. 521-530 : 521-530

publication ID

https://doi.org/10.3897/asp.83.e161465

publication LSID

lsid:zoobank.org:pub:CD5A5819-21A1-4256-A2B2-4007305EABCE

DOI

https://doi.org/10.5281/zenodo.17312967

persistent identifier

https://treatment.plazi.org/id/8033400C-1678-53E1-8DD2-9D3F80C6CB52

treatment provided by

Arthropod Systematics & Phylogeny by Pensoft

scientific name

Triassocypha prima
status

sp. nov.

3.6. Triassocypha prima sp. nov.

Figures 2 A, B, D View Figure 2 , 3 A View Figure 3

Material.

Holotype, MCSN 8715 View Materials (a body with two forewings and one hind wing, legs, and one antenna apparently complete), stored in Museo cantonale di storia naturale, Lugano, Switzerland. GoogleMaps

Locality and horizon.

Upper Kalkschieferzone member of Meride Limestone (transition interval to Archelaus and Regoledanus Ammonoid Zones, upper Ladinian), Middle Triassic; VM 12 site (DMS geographical coordinates: 45°53’26’’N; 8°56’49’’E), Val Mara near Meride   GoogleMaps , Monte San Giorgio, Switzerland.

Etymology.

The specific epithet is the Latin adjective prīmus, meaning, “ first ” or “ early ”, and refers to this as the first described species of the genus.

Diagnosis.

Forewing characters only: ma-mp longer than r-ma; distal-most cell between R and MA three times as long as wide.

Description.

Body 1.3 mm long, presence of long macrosetae on the thorax and some wing veins. Head: head apparently orthognathous to prognathous, with a relatively long buccal cone; compound eyes rounded with diameter 0.1 mm; antenna elongate, with flagellomeres elongate, distal most flagellomeres shorter than other flagellomeres, scape large, pedicel apparently small. Thorax: thorax 0.5 mm long; all legs preserved and of similar shapes, apparently only two tarsomeres, basal one light brown and distal one dark brown. Abdomen: abdomen elongate and broad, 0.7 mm long, 0.55 mm wide; cerci absent. Forewing venation: forewing 1.6 mm long, 0.6 mm wide, pear-shaped, rounded apically, narrow basally; a common stem ScP + R + M + CuA from which CuA separates 0.2 mm from wing base, perpendicular to ScP + R + M and short before cua-cup terminates into vein; cua-cup 0.07 mm long, straight, aligned with distal part of CuA; CuA simple and curved distally, ending at wing margin 0.5 mm from wing base; CuP + PCu straight, well separated from A; A short, weakly curved; ScP re-emerging from R 0.8 mm from wing base, perpendicular to C and R, straight, 0.12 mm long; M separating from R 0.1 mm distal of base of CuA; stem of M curved, 0.25 mm long, separating into MA and MP and delimiting a broad elongate closed cell, 0.5 mm long, 0.2 mm wide; both MA and MP with a strong angle distally and ending on posterior margin at right angle; a long ma-mp perpendicular to MA and MP; two elongate, broad cells between R and MA, separated by r-ma perpendicular to R and MA, basal-most cell 0.35 mm long, 0.07 mm wide; distal-most cell 0.6 mm long, 0.2 mm wide; R forming an angle distal of ScP and straight distally; separating into RA and RP 0.45 mm distal of ScP; RA straight, short, rather oblique, nearly orthogonal with RP; RP forming a strong angle and reaching wing apex; straight, elongate rp-ma, 0.1 mm long.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

SuperOrder

Holothysanoptera

Order

Thysanoptera

Family

Lophioneuridae

Genus

Triassocypha