[1] The species can be identified by wing veins in adults and pupal dorsal spines on abdominal segments.

Their habitat consists of broad leaf woods in mountainous areas at elevations of 200 to 800 metres, in semi-deciduous and undisturbed woodlands.

[1] Habitat fragmentation, light pollution, clearing of forest underbrush, and collection of rare species are likely factors affecting B. europaea's distribution and abundance, and contribute to its current IUCN endangered status.

[1] Adults lay eggs on the trunks of plants within Oleaceae, including Fraxinus angustifolia, Phyllirea latifolia, and Ligustrum vulgare in captivity.

Larvae undergo five instars, pupate on the ground where they overwinter, and emerge as adults the following spring.