by William Swainson

“ The species is still very rare in collections; our own, a fine pair, were received from Van Diemans Land.
Although unacquainted with the larva, and pupa state of this species, nature has stamped the perfect insect with the image of that group she intends it to represent. Its long, narrow, anterior wings, almost transparent, immediately reminds even the unpractised entomologist of the Heliconian butterflys; while the analysis of the genus Papilio, confirms this idea, by shewing that Cressida is the Heliconian type. ”