Puripsychops eurypterus, Liu & Ren & Wang, 2025

Puripsychops eurypterus sp. nov.

LSID: urn:lsid:zoobank.org:act:

Figure 2 View FIGURE 2

Material. Holotype: CNU-NEU-NN-2024008, a nearly completed specimen including two relatively completed forewings and two relatively completed hind wings.

Etymology. From the Latin Eurypterus (meaning “wide wing”), referring that the forewing of this new species is significantly wider compared to other species of Osmylopsychopidae .

Locality and horizon. latest Middle Jurassic (Upper Callovian), Jiulongshan Formation; Daohugou Village, Shantou Township, Ningcheng County, Inner Mongolia, China.

Diagnosis. As for the genus.

Description. Medium body size. Forewing wide and nearly triangular, ca. 16-17 mm long and 8.5-10 mm wide. Basal costal space broad and significantly narrowed towards the distal. Subcostal veinlets dense, most forked distally. Humeral veinlets strongly recurrent with several branches. Sc fused with RA distally. At least one crossvein present at subcostal space. RA with several pectinate branches distally. RP pectinate with about 20 primary branches, most shallowly forked. RP1 deeply forked with several branches. M forked near its middle part, MA forked medially with a few distal branches, MP deeply dichotomously forked with several branches. Cu forked at wing base, CuA pectinately branched with several branches. CuP dichotomously forked once, two primary branches forming a few sub-branches distally. A1 and A2 complicatedly forked with numerous branches, A3 forked near the wing margin.

Hind wing smaller than forewing, relatively elongated, ca. 15–17 mm long and 7.5–8.5 mm wide. Costal space nearly equal width. Other preserved venations similar to forewing.