This species is believed to be very rare, although it may be locally common. Little is known about its phenology, flight period and elevational range. It was known only from the species description (Gabriel 1942), and from the recent rediscovery in 2009 by Karma Wangdi and subsequent surveys in 2011 by a team of Bhutanese and Japanese lepidopterists (Harada et al. 2012). In Bhutan, B. ludlowi and B. lidderdalii have not yet been observed flying together. However, based on the recent records reported here from India, both B. ludlowi and B. lidderdalii are now known to fly at the same elevation in the same microhabitat and valley at the Lama Camp in the Eaglenest WLS. This sympatric occurrence is significant. Their flight periods also appear to overlap substantially.

The species occupies evergreen forests, tree-fall gaps and forest edges at the elevation of 2,000-2,800 m asl, frequenting mountain slopes and valleys. Adults usually fly high up in the forest canopy, occasionally descending to feed from flowers of shrubs and small trees.

The species is at least bivoltine (i.e., has two broods every year), flying from July to October.