It is endemic to Papua New Guinea and is only known from its type locality near Kowat in the Adelbert Range, Madang Province.

[1][3] This species was originally described in the genus Albericus,[2] named for Alberich, the dwarf in Scandinavian mythology and Richard Wagner's opera cycle Der Ring des Nibelungen.

[2] Choerophryne gudrunae is a comparatively small species: three unsexed individuals in the type series measure 14.4–15.9 mm (0.57–0.63 in) in snout–urostyle length.

[5] Choerophryne gudrunae shares the general appearance of other former Albericus species: brown dorsum with lighter or darker irregular mottling, warty dorsal skin, and short and road head with blunt snout and relatively large eyes.

[2] The male advertisement call is a short series of clicks (~10) emitted in rapid succession.