These small, whitish moths are probably miners in plant stems. Examples of host plants used in Europe are Lycopus, Mentha and Rumex, but their biology is poorly known. The subfamily Oposteginae comprises 87 described species and Opostegoidinae includes 15 described species.
^Davis D.R. (1989). Generic revision of the Opostegidae, with a synoptic catalog of the world's species (Lepidoptera: Nepticuloidea). Smithsonian Contributions to Zoology, 478: 1–97 online here
^Davis, D.R. (1999). The Monotrysian Heteroneura. Ch. 6, pp. 65–90 in Kristensen, N.P. (Ed.). Lepidoptera, Moths and Butterflies. Volume 1: Evolution, Systematics, and Biogeography. Handbuch der Zoologie. Eine Naturgeschichte der Stämme des Tierreiches / Handbook of Zoology. A Natural History of the phyla of the Animal Kingdom. Band / Volume IV Arthropoda: Insecta Teilband / Part 35: 491 pp. Walter de Gruyter, Berlin, New York