Side view of the head and thorax of a female P. altomontis, 27.Vii.2020, Vars, la Mortrice (photo by Sander Bot).

 
 
  Part of: Van de Meutter F (2022) ´╗┐Description of the female of Platycheirus altomontis Merlin & Nielsen in Nielsen, 2004 (Diptera, Syrphidae) with notes on the occurrence and hilltopping behaviour of rare French montane and Alpine Syrphidae. Alpine Entomology 6: 65-76. https://doi.org/10.3897/alpento.6.81676