@jfgodeau @gillessanmartin : une idée? Cette tache seule à l'arrière m'interpelle...
Entirely yellow, possibly just hatched from its pupa.
Photos 3 & 4 taken an hour and two after initial shot. :-)
Adult at same location: https://www.inaturalist.org/taxa/143034
Also larva of Hippodamia tredecimpunctata on same plant: https://www.inaturalist.org/observations/134897000
Adult at same location: https://www.inaturalist.org/observations/135141844
Also larva of Hippodamia variegata on same plant: https://www.inaturalist.org/observations/135127050
2 ex