Eupypsychops oligophlebius, 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 : 298

Eupypsychops oligophlebius sp. nov.

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

Figure. 3

Material. Holotype: CNU-NEU-NN-2024009, an incomplete forewing and an incomplete hind wing. Paratype: CNU-NEU-NN-2024010, an incomplete and compressed forewing.

Etymology. From the Latin oligophlebius (meaning “a few branches”), referring that the number of its CuP branches is relatively small compared to other species of Eupypsychops .

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

Diagnosis. The outer radial gradates series of forewing absent, CuP dichotomously branched with a few branches near its middle part, no distinct wing patterns.

Description. Forewing broad, ca. 32–36 mm long and 20–22 mm wide. Trichosors indistinct. Basal costal space broad and significantly narrowed towards end. Subcostal veinlets dense and abundant, most forked 1–2 times. A costal gradate series of crossveins present. Humeral veinlets strongly recurrent with several branches. Sc not fused with RA distally. RA with few distal pectinate branches. RP pectinately branched with about 15 primary branches, most deeply forked more than once. RP1 deeply forked 3–4 times with several branches. M forked near wing base, MA and MP simple with similar configuration. Cu forked at wing base, CuA pectinately branched with numerous branches medially, CuP dichotomously branched with a few branches near its middle part. Anal space broad, A1, A2 and A3 complicated dichotomously branched. Wing patterns indistinct.

Hind wing broad and slightly smaller than forewing, ca. 33 mm long and 19 mm wide. Numerous radial crossveins forming an outer gradate series. Other venations similar to forewing.

Remark. This new species is assigned to Eupypsychops Peng et al., 2015 for sharing the similar venation with this genus, i.e. Sc not fused with RA distally, most RP branches deeply forked, RP1 deeply forked at least three times, M forked slightly earlier than the first branched point of CuA and MP dichotomously forked distally. Additionally, it can be clearly differentiated from other species of Eupypsychops by the absence of radial gradate series in forewing ( vs. presence of a radial gradate series in others), simply dichotomously branched CuP ( vs. CuP deeply complicated branched in others) and the absence of distinct wing patterns ( vs. presence of distinct wing patterns in others).

Figures

FIGURE 3. Eupypsychops oligophlebius sp. nov.; (A) photograph of the forewing of holotype (CNU-NEU-NN-2024009); (B) line drawing of the forewing venation of holotype (CNU-NEU-NN-2024009); (C) photograph of the hind wing of holotype (CNU-NEU-NN-2024009); (D) line drawing of the hind wing venation of holotype (CNU-NEU-NN-2024009); (E) photograph of paratype (CNU-NEU-NN-2024010); (F) line drawing of the forewing venation of paratype (CNU-NEU-NN- 2024010). Scale bars: A–F for 5 mm.