Key to Scientific Names in Ornithology
(Meliphagidae; Ϯ Obscure Honeyeater C. obscura) L. caligo, caliginis darkness, gloom; avis bird; "CALIGAVIS gen. nov. Type, obscura De Vis 1897 (Ptilotis). ... OBSCURE HONEY-SUCKER (Caligavis obscura) ... The name "Obscure" is most applicable as everything about the bird in literature is unclear. The generic name Caligavis is proposed to act as a lighthouse to warn of the dangers in connection with the two species, the type being obscura, and the characters are the dark coloration, streaked above and below, small size with tail shorter than wing, short bill with longer legs and the bare eye space." (Iredale 1956).