The family Lygistorrhinidae is comprised of a small group of mycetophiloid
flies easily distinguished by their elongate mouthparts and considerably
reduced wing venation. Specimens are uncommon in collections, but can be
locally abundant in various warm areas of the globe.
Following the recent work of Matile (1990b), the family is composed of 4
genera (three living, one fossil). Two species of fossil lygistorrhinids
are listed in this catalog.
Ref.: Thompson (1975, systematics and key), Matile (1990b, key to
genera).
PALAEOGNORISTE Meunier, 1904a: 88 [1904d: 77] (as genus). Type
species: Palaeognoriste sciariforme Meunier, 1904, by monotypy.
affine Meunier, 1912a: 89. PA: Baltic Region (Eocene/Oligocene) [A].
sciariforme Meunier, 1904a: 88 [1904d: 77]. PA: Baltic Region (Eocene/Oligocene)
[A].