Densipsychops pectinatus, Liu & Ren & Wang, 2025

Liu, Xiaotian, Ren, Dong & Wang, Yongjie, 2025, New Middle Jurassic Osmylopsychopidae (Neuroptera) from Northeastern China, Zootaxa 5723 (2), pp. 292-300 : 295

Densipsychops pectinatus sp. nov.

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

Figure 1

Material. Holotype: CNU-NEU-NN-2024004, two incomplete forewings and a poorly preserved hind wing.

Etymology. From the Latin pectinatus (meaning “pectinate”), referring to the pectinately branched MP of this new species.

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. Forewing relatively elongated, ca. 17–18 mm long and 9–10 mm wide. Trichosors indistinct. Basal costal space broad, distinctly narrowed towards the distal. Costal gradate series present. Subcostal veinlets dense, most forked 2–3 times. Humeral veinlets strongly recurrent with several sub-branches. Sc fused with RA distally. At least one crossvein present at subcostal space. RA simple with few branches distally. RP pectinate with about 30 primary branches, most shallowly forked. RP1 deeply branched twice. M forked near wing base, MA forked with few distal branches, MP pectinately branched near the middle. Cu forked at wing base; CuA pectinately branched, similar to MP branching; CuP forked near wing base, anterior branch of CuP pectinately branched, posterior branch of CuP deeply forked. A1, A2 and A3 forked with complicated sub-branches. Large dark irregularly transverse markings present on forewing.

Hind wing poorly preserved, ca. 15.5 mm long and 8.5 mm wide. All preserved venations similar to forewing.

Figures

FIGURE 1. Densipsychops pectinatus sp. nov.; (A) photograph of completed specimen of holotype (CNU-NEU-NN- 2024004); (B) line drawing of completed specimen of holotype (CNU-NEU-NN-2024004); (C) photograph of left forewing of holotype (CNU-NEU-NN-2024004); (D) line drawing of left forewing of holotype (CNU-NEU-NN-2024004); (E) photograph of right forewing of holotype (CNU-NEU-NN-2024004); (F) line drawing of right forewing of holotype (CNU- NEU-NN-2024004); (G) photograph of left forewing details with the distal part of Sc and RA (as located on Figure 1C); (H) the detailed view of left forewing in counterpart photograph, taken as the same position as shown in Figure 1G. Scale bars: A–F for 5 mm, G–H for 0.2 mm.