Plecia Wiedemann, 1828
publication ID |
https://doi.org/ 10.5281/zenodo.259087 |
publication LSID |
lsid:zoobank.org:pub:4676EE59-569B-4197-B108-9B32FD88E68E |
DOI |
https://doi.org/10.5281/zenodo.6039617 |
persistent identifier |
https://treatment.plazi.org/id/03A9879C-FFDD-F419-45D3-30267F8D39A6 |
treatment provided by |
Plazi |
scientific name |
Plecia Wiedemann, 1828 |
status |
|
Genus Plecia Wiedemann, 1828 View in CoL
In the 19th Century, fossil Plecia species were mostly placed in the genus Protomyia Heer , though many Penthetria species were also included in this genus.
Plecia assonensis Gentilini, 1993 View in CoL ( Figs. 19, 107 – 109 View FIGURES 107 – 109 )
Plecia assonensis Gentilini 1993: 161 View in CoL .
Possibly a synonym of Plecia livida , but the pointed gonostylus might be diagnostic together with the straight, oblique vein R2+3 and the indistinctive pterostigma.
Material examined. (RGL) Dauphin 33, Bois d’Asson 34, Bois d’Asson 81
Localities. Bois d’Asson
Diagnosis. A small Plecia (wing length approximately 5 mm). Antennal flagellum 9-segmented. Vein R2+3 straight and oblique. Male gonostylus stout digitiform.
Redescription. Male: Total length 5.0– 8.5 mm (N=2, the former specimen obviously shrunk)
Head: Length 0.81 mm (N=1), width 0.86 – 1.21 mm (N=2). Antennal flagellum 9-segmented according to Gentilini (1993: 161), not possible to see in the specimens at hand.
Thorax: Length 1.7 – 2.9 mm (N=3), width 1.7 – 2.2 mm (N=2). Brown. Haltere pale.
Wing (fig. 107): Length 5.1 – 5.7 mm (N=3), width 1.7 – 2.5 mm (N=2), length/width = 2.31 – 3.01 (N=2). Pale brownish, almost hyaline, veins brown, slender, R-veins not notably stronger than posterior veins. Costa extends to a little beyond apex of R4+5. Subcosta fine, terminates approximately at fork of M, humeral vein present. Vein R 2+3 short, nearly straight and oblique, R4+5 slightly curved. Pterostigma small, light brown, indistinctive. Wing vein measurements in Table 2.
Legs: Light brownish, getting darker apicad. Hind femur apparently pale with darker apex.
Abdomen: Length 2.9 – 5.8 mm (N=3), width 0.9 – 1.4 mm (N=3). Brown, relatively broad.
Terminalia (figs. 108–109): Hypopygium 0.70 – 0.77 mm (N=3) wide, broad and robust. Gonostyli 0.35 – 0.46 mm (N=3), short, robust, apically pointed. Epandrium mesally with a shallow, V-shaped cleft.
Female unknown.
Fig. 108 View FIGURES 107 – 109 . Male, terminalia, dorsal. RGFL Bois d’Asson 81. Fig. 109 View FIGURES 107 – 109 . Male, terminalia. RGL Bois d’Asson 34.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
Kingdom |
|
Phylum |
|
Class |
|
Order |
|
Family |
Plecia Wiedemann, 1828
Skartveit, John & Nel, André 2017 |
Plecia assonensis
Gentilini 1993: 161 |