Maybe on my photo there is an error in the title of room 5.
The specimen in number 5 seems to be maackii judging by the postdiscal band on the forewing underside. Note also that the hindwing of maackii tends to be slightly more angular than dehaanii and bianor.
huuge thanks to all for reply. may i continue? this mackii/bianor from China complex seems very hard to identificate for me. i will be very gratefull for help. i will mark each 2 photos of the specimen .