The Nevrorthidae, often incorrectly spelled "Neurorthidae", are a small family of winged insects of the order Neuroptera. Extant species may be described as living fossils. There are 19 extant species in four genera, with a geographically disjunct distribution, , comprising 5 species with scattered distributions around the Mediterranean, with two species known from southeastern Australia, comprising 11 species known from China and Japan, and known from a single species described from Yunnan Province, China. They were at one time placed in the Osmyloidea, with the Osmylidae and the spongillaflies (Sisyridae) as their closest relatives, but nowadays they are considered to be the most ancient lineage of living lacewings. Sometimes they are placed in a suborder Nevrorthiformia, but the quit