It was described from a single specimen collected by Anderegg, probably in Wallis.

This species was described from a specimen from Antananarivo.

The species was described in 1895 from a single female specimen.

B. tabupumensis was described from a single specimen from Burma, with no further information since 1914.

The species was first described in 1897 from a specimen collected near Derby, Western Australia.

It was described from a single female specimen collected in 1995.

It was first described in 1891 from a specimen taken near Hockley.

This rare deer was first described in 1909 from a female specimen.

This species was originally described from a specimen found at Zanzibar, East Africa.

The genus is also the first to be described from a specimen of old world amber.