Pseudogonia fasciata (Wiedemann 1819)
Pseudogonia fasciata (Diptera: Tachinidae)
Abdomen shiny black with 3 narrow white bands (without any red parts). Scutellum reddish-brown, without apical setae. Vertex yellowish-reddish in ground colour.
Original description in:
Wiedemann, C.R.W. 1819. Beschreibung neuer Zweiflügler aus Ostindien und Afrika. Zoologisches Magazin 1(3)
https://www.biodiversitylibrary.org/item/51679#page/33/mode/1up
The 2 Pseudoginia species known to occur in South Africa (P. fasciata and P. rufifrons) can be distinguished via the key (and figures of the abdomen) in:
Cerretti, P. 2004. A new species of Pseudogonia Brauer & Bergenstamm from Sardinia, and a key to the West Palaearctic species (Diptera: Tachinidae). Stuttgarter Beiträge Naturkunde Serie A [Biologie] – 659_A
https://www.zobodat.at/pdf/Stuttgarter-Beitraege-Naturkunde_659_A_0001-0011.pdf
Couplet 2 of the key:
2 Parafacial at its narrowest point about half (or less) as wide as face (measured at its widest point in frontal view) (Fig. 6); head shape as in Fig. 7. Prementum about 4–6 times as long as wide. Anterior row of setulae on parafacial well differentiated from the posterior row (Fig. 6). Abdominal tergites 3–5 microtrichose on anterior 2/3–5/6 of each segment, showing shifting spots (Fig. 12). Hind tibia usually with 2 dorsal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. rufifrons (Wiedemann)
– Parafacial at its narrowest point about as wide as face (measured at its widest point in frontal´view) (Fig. 8); head shape as in Fig. 9. Prementum very long, about 8 times as long as wide. Anterior row of setulae on parafacial not so differentiated from the posterior row. Abdominal tergites 3–5 each with a transverse band of light grey, dense microtrichosity on anterior 1/3–1/2 (Fig. 13). Hind tibia with 3 dorsal preapical setae. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. fasciata (Wiedemann)
Type locality: Western Cape ('Prom. bon. sp.')
Distribution: Afrotropical: South Africa, Zimbabwe. Palaearctic: Europe (SW. Eur.), N. Africa (Canary Is.).
iNat observations:
https://www.inaturalist.org/observations/245612935
https://www.inaturalist.org/observations/241318855
Comments
@traianbertau
Consider this as constructive comment and most certainly not as criticism:
Kindly add the containing taxon of the organism you treat somewhere conspicuously in yoour articles. Here, I had to click around to establish that this is a fly.
Rn
@beetledude
Thanks for this!
Have done a title line in the text body
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