This species was first described by Edward Doubleday in Ernst Dieffenbach's book Travels in New Zealand: with contributions to the geography, geology, botany and natural history of the country and named Margaritia flavidalis.[5] In 1899 Hampson placed this species in the genus Mnesictena.[7] In 1983 G. E. Munroe synonymised the genus Mnesictena with Udea.[8] However in 1988 John S. Dugdale treated Mnesictena as a valid genus.[2] Dugdale's treatment was followed in 2011 by Richard Mally and Matthias Nuss.[1] The male holotype specimen, collected in Auckland by A. Sinclair, is held at the Natural History Museum, London.[2]
Description
Doubleday described this species as follows:
All the wings ochraceous, the outer margins with a series of minute dots. Anterior wings with a faint striga near the base, a still fainter one near the middle, and a more distinct much-waved one near the outer margin, and two discoidal stigmatiform spots fuscous. Posterior wings with a discoidal spot, preceded towards the anterior margin by a smaller one, a transverse striga beyond the middle, and the anal angle fuscous.[5]
^Gordon, Dennis P., ed. (2010). New Zealand inventory of biodiversity. Volume two. Kingdom animalia : chaetognatha, ecdysozoa, ichnofossils. Vol. 2. Christchurch, N.Z.: Canterbury University Press. p. 458. ISBN9781877257933. OCLC973607714.
^Nuss, M.; et al. (2003–2017). "GlobIZ search". Global Information System on Pyraloidea. Retrieved December 12, 2017.