Paleochina duvergeri, Schubnel & Desutter-Grandcolas & Garrouste & Hervet & Nel, 2020
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publication ID |
https://doi.org/ 10.4202/app.00676.2019 |
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persistent identifier |
https://treatment.plazi.org/id/570A1449-D142-FFD0-FFF3-AD09FBAD5818 |
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treatment provided by |
Felipe |
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scientific name |
Paleochina duvergeri |
| status |
sp. nov. |
Paleochina duvergeri View in CoL sp. nov.
Figs. 6 View Fig , 7A View Fig .
Zoobank LSID: urn:lsid:zoobank.org:act:AD7F0C52-16A3-4CDB-A502-C676C84A7F7E
Etymology: Named after M. Bernard Duverger, for his authorization of collect of fossils in the area of Menat.
Holotype: MNT NEL 3267 , two fore- and two hind wings, two hind legs.
Type locality: New quarry, Menat, Puy-de-Dôme, France.
Type horizon: Middle Paleocene, Menat Basin.
Material.— Holotype only.
Diagnosis.—M+CuA separating from R well distal of apex of ScA; two rows of cells between CuA+CuPaα and CuPaβ.
Description.—Forewing hyaline, very narrow, 23.3 mm long, 2.7 mm wide in widest part, 1.5 mm in narrowest; posterior margin straight; C very weakly curved basal of apex of ScA; area between C and ScA narrow, 0.3 mm wide, with a series of ca. 10 short parallel crossveins; apex of ScA 6.0 mm from wing base; area between ScA and ScP 0.3 mm wide; area between C and ScP narrow, 0.3 mm wide, with a series of short parallel crossveins; ScP and R strongly approximate but not touching; apex of ScP 6.0 mm distal of that of ScA; area between C and RA darkened, 0.25 mm wide, without visible crossvein, except near apex of RA; apex of RA 1.3 mm from wing apex; M+CuA appressed to R in basal half of wing, separating from R 8.5 mm from wing base; independent stem of M+CuA 2.3 mm long; M simple; CuPaα weak, ending into CuA 0.7 mm from point of separation between M and CuA; CuA+CuPaα simple; two rows of irregular cells between M and CuA+CuPaα; base of RP 12.3 mm distal of wing base; area between RA and RP narrow, 0.3 mm wide, with one row of simple crossveins between them; RP with five posterior branches, with two rows of cells between them; two rows of cells between CuA+CuPaα and CuPaβ; one row of cells between M+CuA and CuPa, and between CuPa and CuPb; CuPb straight, area between CuPb and anal vein very narrow.
Hindwing 22.0 mm long, narrow, with the anal area folded along first anal vein; hyaline, except for a darkened area between C and RA, as in forewing; part of wing anterior to the anal area nearly identical to forewing.
Hind leg long and rather thin: femur 16.7 mm long, 1.3 mm wide, with longitudinal anterior and posterior crests, without spines; tibia 13.2 mm long, 0.3 mm wide; with a series of ca. 28 strong spines, becoming more and more broad distally, apical spines poorly preserved; tarsus also poorly preserved.
Remark s. — The forewings, hindwings, and legs are grouped on a surface of 8 × 7 cm. They clearly belong to the same individual. The body is missing. This locust may have been attacked by a predator that has eaten the body. Wings and legs remained grouped because they have fallen in a surface algal mat (diatoms), and was transported at the lake bottom when the mat has sunk. This scenario is in accordance with what is generally observed in diatom paleolake ( Nel 1991).
Stratigraphic and geographic range.— Paleocene, Menat Formation, Menat, France.
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