Hello,
it‘s actually very common for Pachnoda spp in to reach ages far longer than their wild counterparts in captivity.
For Pachnoda marginata ssp&hybrids 10-12 months are commonly recorded, I have had a (unmated) Pachnoda sinuata cf. calceata female which hatched last September and only died a few weeks ago.
5-8 months livespan is far more fitting for most Pachnoda in captivity.
Best Regards,
BeetlebreederGermany