Rhigioglossa (Rhigioglossa) edentula Wiedemann, 1828 - Identification
Frons mostly shining black with large callus. Eyes bare. Antennae black. Body covered with tawny hairs.
Male: Head with eyes broadly touching and upper eye-facets enlarged. Thorax shiny black. Femora black, tibiae largely brown or reddish. Wings clear, or faintly tinted along veins, with light brown costal cell. Abdomen dorsally shining black with basal three tergites orange at sides (with decreasing width). Reminder of abdominal tegites black with yellow, hairy hind margins.
Original description by Wiedemann:
https://www.biodiversitylibrary.org/item/50649#page/147/mode/1up
Description by Macquart (Erodiorhynchus eristaloides)
https://www.biodiversitylibrary.org/item/109528#page/117/mode/1up
with illustration (fig 1): https://www.biodiversitylibrary.org/item/109528#page/259/mode/1up
Male head illustrated in Chainey 1987: https://journals.co.za/doi/pdf/10.10520/AJA03040798_420
Beware: It can be confused with Rhigioglossa capensis.
A common species in the Cape from Namaqualand to Willowmore. Often seen on orange and yellow spring daisies (such as Didelta, Dimorphotheca and Osteospermum), covered in pollen. The most commonly represented Rhigioglossa s. str. in institutional collections.
iNat observations:
Female: https://www.inaturalist.org/observations/103181590
Male: https://www.inaturalist.org/observations/102290967
Comentários
Why if it is the " most commonly represented Rhigioglossa s. str. in institutional collections." do we have only 1 example on iNat so far?
We have a few more by now.
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