Thecagaster charpentieri iranica ssp. nov. - description of the exuviae and the imagines (Odonata: Cordulegastridae) Author Schneider, Thomas Arnold-Knoblauch-Ring 76, 14109 Berlin-Wannsee, Germany & Ehrenamtlicher Mitarbeiter Museum für Naturkunde Berlin, 10115 Berlin, Germany Author Müller, Ole Birkenweg 6 d, 15306 Libbenichen, Germany Author Ikemeyer, Dietmar Billerbecker Str. 6, 48329 Havixbeck, Germany Author Vierstraete, Andy Department of Biology, University of Gent, 9000 Gent, Belgium Author Schneider, Elias Arnold-Knoblauch-Ring 76, 14109 Berlin-Wannsee, Germany text Zootaxa 2026 2026-01-07 5741 3 495 518 https://doi.org/10.11646/zootaxa.5741.3.4 journal article 10.11646/zootaxa.5741.3.4 1175-5326 19165335 5C0EB71C-5D31-45DD-8294-045F76F636DD

TABLE 2. Parameter for differential diagnosis between Thecagaster c. iranica and Thecagaster c. charpentieri imagines.

parameter	Thecagaster c. iranica 12 males, 3 females	Thecagaster c. charpentieri 28 males, 4 females
tl—total length male	≥79 mm	≤72 mm
tl—total length female	≥84 mm	≤73 mm
hwl—hind wing length male	≥47 mm	≤45 mm
hwl—hind wing length female	≥51 mm	≤46 mm
pw—pterostigma width hind wing	≤ 0.30 mm	≥0.40 mm
mvt—medioventral tooth, male	more distal,>1/3 of superior appendage	more proximal, <1/3 of superior appendage
blue shining of the thoracic mesepisternum in living animals	clearly visible	absent or weakly expressed