Plecia winnertzi ( Heyden & Heyden, 1865 )

Skartveit, John & Wedmann, Sonja, 2021, A Revision of fossil Bibionidae (Insecta: Diptera) from the Oligocene of Germany, Zootaxa 4909 (1), pp. 1-77 : 39-40

Plecia winnertzi ( Heyden & Heyden, 1865) (figs. 61, 172–173)

Protomyia Winnertzi Heyden & Heyden 1865: 21–22 .

Localities: Rott.

Material examined: Holotype (female) NHMUK In 58790 (fig. 61)

Additional material: LACMIP 2533 298abc (three specimens)

Description:

Female (N=5, figs. 61, 172–173):

Total length 6.5–9.2 mm (N=5)

Head (fig. 173): Length 0.76–0.91 mm (N=3), width 0,87– 0.89 mm (N=2). Black. Ocellar tubercle rather small. Antennal flagellum slender, 8-segmented.

Thorax (fig. 173): Length 1.9–2.8 mm (N=5). Brownish-black, haltere brown.

Legs: Femora brownish-yellow, fore and mid-tibiae and tarsi brown. Hind tibia brownish-yellow. Fore femur 1.5 mm long, 0.34 mm wide (N=1), fore tibia 1.5–1.6 mm long, 0.20–0.21 mm wide (N=2), fore first tarsomere 0.83 mm long (N=1), hind tibia 2.3 mm long (N=1), hind first tarsomere 0.85 mm long (N=1).

Wing (fig. 172): Length 6.4–8.1 mm, width 2.5–3.3 mm, length/width = 2.3–2.6 (N=5), light brown fumose, costal cell darkened. Pterostigma broadly oval, brown, not conspicuous. Humeral vein present, oblique. Subcosta straight, running well clear of R. Costa extends to about one-third distance between apices of R 4+5 and M 1. R 2+3 oblique, almost straight. R 4+5 apically gently curved. R-M vertical. Fork of M nearly symmetrical, narrow, M-veins apically nearly straight. CuA 1 straight, CuA 2 apically distintictly bent basad, converging towards CuP.

Abdomen: Length 4.7–6.6 mm (N=5), width 2.0– 2.6 mm (N=2), brownish-black. Cerci relatively large, rounded. Last sternite with deep, U-shaped cleft.

Male unknown.