Published January 19, 2021 | Version v1
Taxonomic treatment Open

Bibio mimas L. Heyden 1870

Description

Bibio mimas L. Heyden, 1870 (figs. 76)

Bibio Mimas L. Heyden 1870: 258.

Bibio infumatus Meunier, 1915 Syn.n.

Type (female) Coll. Krantz (Bonn?), not seen.

Additional material? LACMIP 2533.1066ab (female), 2533.1144ab (isolated wing), 2533.1151 (isolated wing).

Description gleaned from Heyden (1870: 258) and Meunier (1915):

Female (fig. 76):

Total length 10.0– 10.9 mm (N=2).

Head: Rather small, oblong, antennae half as long as head.

Thorax: Length approx. 2.2 mm (N=1). Black.

Legs: coxae and tibiae pale coloured, tibiae?, tarsi dark. Legs more gracile than in Bibio janus.

Wing length 8.7 mm, width 3.6 mm (N=1). Pterostigma dark and distinctive. Basal Rs approximately as long as R-M. Crossvein M-Cu joins M 2 considerably distad of furcation.

Male unknown.

Discussion:

The symmetrical R-fork combined, rather narrow M-fork and relatively large size could be diagnostic for this species, though it is difficult to be sure how reliable the figures in Heyden and Meunier’s descriptions are. Meunier (1915) described Bibio infumatus from an isolated wing, we did not succeed in locating the specimen but a good photograph of it was published by Meunier (1915, Plate XXIII. Fig. 4)

Notes

Published as part of Skartveit, John & Wedmann, Sonja, 2021, A Revision of fossil Bibionidae (Insecta: Diptera) from the Oligocene of Germany, pp. 1-77 in Zootaxa 4909 (1) on page 48, DOI: 10.11646/zootaxa.4909.1.1, http://zenodo.org/record/4448697

Files

Files (1.7 kB)

Name Size Download all
md5:dfd32c19bdb8271d842f2eec553dec36
1.7 kB Download

System files (11.0 kB)

Name Size Download all
md5:438b6aad66913acad45a47f762d34737
11.0 kB Download

Linked records

Additional details

Biodiversity

Family
Bibionidae
Genus
Bibio
Kingdom
Animalia
Order
Diptera
Phylum
Arthropoda
Scientific name authorship
L. Heyden
Species
mimas
Taxon rank
species
Taxonomic concept label
Bibio mimas Heyden, 1870 sec. Skartveit & Wedmann, 2021

References

  • Heyden, L. F. J. D. von (1870) Fossile Dipteren aus der Braunkohle von Rott in Siebengebirge. Palaeontographica, 17, 237 - 266.
  • Meunier, F. (1915) Uber einige fossile Insekten aus den Braunkohlenschichten (Aquitanien) von Rott (Siebengebirge). Zeitschrift der Deutschen Geologischen Gesellschaft, A, 67, 205 - 217.