Pseudopalaeodysagrion, Bechly & Velten, 2023

Bechly, Günter & Velten, Jürgen, 2023, A Revised Diagnosis of Palaeodysagrion cretacicus Zheng et al., 2016 (Insecta: Odonata) from mid-Cretaceous Burmese Amber, with erection of a new genus of fossil damselflies, Zootaxa 5263 (4), pp. 547-556 : 554

Pseudopalaeodysagrion n. gen.

Type species. P. youlini Zheng et al., 2017

Revised diagnosis. Same as type species since monotypic. Differing from Palaeodysagrion in the following characters: less dense wing venation; only 5 postnodal crossveins (vs 17); pterostigma very short and covering only a single cell (vs elongate and covering 3 cells); IR1 very short with a single row of cells between it and RP1 and RP2 respectively (vs very long IR1 with 2 rows of cells between it and RP1 and RP2 respectively); subnodus transverse (vs oblique); short bridge space (vs elongate bridge space); only 1 crossvein between RP1+2 and IR2 (vs 6); cells in postdiscoidal space more narrow, more elongate, and fewer in number; cells in space between MP and CuA more elongate and strongly pentagonal (vs higher and more rectangular); CuA much shorter; cubital crossing (CuP) situated more basal from arculus. Discoidal cell elongate and rectangular (much more elongate than in Electrodysagrion and Burmadysagrion , similar to Pseudopalaeodysagrion ).

Etymology. The genus name refers to the assumed similarity of the wing base with the genus Palaeodysagrion .