Thank you for this information. Everything is vanishing. So sad.
Invasive coccinellid species such as Harmonia axyridis are sometimes associated with the decline of C. novemnotata, but the species was becoming rare some in areas before the introduction and population increase of invasive lady beetles. Changing agricultural habitats have also been considered as another possible explanation, but recent studies do not suggest a correlation between C. novemnotata densities and land-use change.[6]
From Wikipedia