This species was first described by Edward Meyrick in 1883 using specimens collected at Lake Wakatipu in December and named Oecophora anaema.[3] Meyrick gave a more detailed description under this name in 1884.[4] In 1915 Meyrick placed this species within the Borkhausenia genus.[5] In 1926 Alfred Philpott was unable to study the genitalia of the male of this species as a result of no specimens being available in New Zealand collections.[6]George Hudson discussed this species under the name B. anaema in his 1928 publication The butterflies and moths of New Zealand.[7] In 1988 J. S. Dugdale placed this species in the genus Tingena.[2] The male lectotype is held at the Natural History Museum, London.[2]
Description
Meyrick originally described this species as follows:
Fore wings pale whitish-ochreous, with fine scattered fuscous scales, a basal streak on costa, a bar from anal angle, and sometimes a mark on fold dark fuscous; hind wings grey; thorax dark fuscous, with a small pale lateral spot.[3]
Meyrick described the male of the species in more detail as follows:
Male. — 13+1⁄2-14+1⁄2 mm. Head whitish-ochreous, finely and closelyirrorated with dark fuscous. Palpi pale whitish-ochreous, externally irrorated with dark fuscous except at apex of joints. Antennae whitish-ochreous, obscurely annulated with dark fuscous. Thorax dark fuscous, with a small whitish-ochreous lateral spot. Abdomen grey. Anterior and middle legs dark fuscous, with ochreous-whitish rings at apex of joints; posterior legs ochreous-whitish. Forewings moderate, costa moderately arched, apex blunt-pointed, hindmargin very obliquely rounded; very pale whitish-ochreous, with fine scattered light fuscous scales; basal third of costa broadly dark fuscous; a short inwardly oblique dark fuscous mark on fold at 1⁄3, sometimes obsolete; a cloudy oblique dark fuscous bar from disc beyond middle to anal angle : cilia very pale whitish-ochreous, with lines of grey points, forming a broader dark grey shade before tips. Hindwings grey, darker posteriorly; cilia light grey.[4]
Meyrick stated that this species could be distinguished from its close relatives by the dark colouration on its head as well as on its thorax except for a small lateral patch. The forewings have a dull appearance as a result of fine brown speckles, visible under a microscope.[4]
Distribution
It is endemic to New Zealand.[1] This species has been observed in Invercargill, Stewart Island and Lake Wakatipu.[8]
Behaviour
The adults of this species are on the wing in December.[8]