Eoptychopterina elenae Ren & Krzeminski 2002

By oilshale

• November 24, 2021

Taxonomy

Kingdom: Animalia
Phylum: Arthropoda Latreille 1829
Class: Insecta Linnaeus 1758
Order: Diptera Linnaeus 1758
Family: Eoptychopteridae Handlirsch 1906
Genus: Eoptychopterina
Species: Eoptychopterina elenae
Author Citation Ren & Krzeminski 2002

Geological Time Scale

Eon: Phanerozoic
Era: Mesozoic
Period: Jurassic
Sub Period: None
Epoch: Middle
International Age: Callovian to Oxfordian

Stratigraphy

Jiulongshan Formation
Daohugou Bed

Provenance

Acquired by: Purchase/Trade

Dimensions

Length: 10 mm

Location

Daohugou (Village)
Ningcheng (County)
Inner Mongolia (Province)
China

• tff-oilshale-ar2535
• inner mongolia
• jiulongshan
• oxfordian
• jurassic
• daohugou
• eoptychopterina

Comments

Taxonomy according to Hao et al 2009.

Hao et al. 2009, p223: “Revised diagnosis: Body length: 6-13 mm: wing length 8.2-15.6 mm Sc ending at wing margin approximately the same as R₄₊₅ forking into R₄ and R₅; R₁ long, r-r at one -third of its length before the end of R₁; R₂₊₃ shorter than R₃; R₄₊₅ short, R₄₊₅ fork six times longer than dR₄₊₅. M1 smoothly curved, m-m joining close to M₁₊₂ bifurcations. M₃₊₄ with a little bend at m-m. CuA slightly sigmoid beyond m-cu; A₁ strongly curved to wing margin in two-thirds of its length.”

Wing line drawing from Hao et al. 2009, p.225:

Identified by oilshale using Hao et al. 2009.

References:

Ren, D. & Krzemiński, W. 2002. Eoptychopteridae (Diptera) from the Middle Jurassic of China. Ann. Zoologica 52 (2): 207-210.

Hao J., Ren, D. and Chungkun S. (2009) New Fossils of Eoptychopteridae (Diptera) from the Middle Jurassic of Northeast China Acta Geologica Sinica 83(2):222 – 228 DOI: 10.1111/j.1755-6724.2009.00022.x

Liu, L., Shih, C. and Ren, D. (2012) Two new species of Ptychopteridae and Trichoceridae from the Middle Jurassic of northeastern China (Insecta: Diptera: Nematocera). Zootaxa 3501: 55-62, DOI: 10.5281/zenodo.282475