Family DIXIDAE

 

Members of the family Dixidae, commonly called meniscus midges, are a cosmopolitan family of delicate nematocerous flies. Adults of extant forms do not feed and can be found resting on overhanging vegetation near the edges of streams and ponds in which the immatures live.


In addition to the determined material listed below, undetermined material has been recorded from the Lower Cretaceous Koonwarra Formation in southern Australia (Jell & Duncan, 1986) and the Oligocene/Miocene amber of the Dominican Republic (Poinar, 1992).

Refs.: Nowell (1951, world checklist, bibliography); Hennig (1966b, Baltic amber taxa).

 

Genus DIXA Meigen

*DIXA Meigen, 1818: 216. Type species: Dixa maculata Meigen, 1818, by subsequent designation of Curtis (1832: pl. 409).
ERIOPTERITES Meunier, 1915b: 15. Type species: Eriopterites tertiaria Meunier, 1915, by monotypy.

cimbrica Ansorge, 1992: 514. PA: Denmark (Paleocene/Eocene) [C].
contigua Keilbach, 1982: 360. Nomen nudum.
minuta Meunier, 1906f: 395. PA: Baltic Region (Eocene/Oligocene) [A].
priscula Cockerell, 1921c: 466. PA: UK (England) (Eocene/Oligocene) [C].
tertiaria Meunier, 1915b: 15 (Eriopterites). PA: Germany (Oligocene) [C].
hyalipennis Théobald, 1937a: 346. PA: France (Oligocene) [C].

 

Genus DIXELLA Dyar & Shannon

*DIXELLA Dyar & Shannon, 1924: 200 (as Dixa subgenus). Type species: Dixella lirio Dyar & Shannon, 1924, by monotypy.
*PARADIXA Tonnoir, 1924: 223 (as Dixa subgenus). Type species: Dixa neozelandica Tonnoir, 1924, by subsequent designation of Edwards (1932: 9).

distans Hennig, 1966b: 11 (Paradixa). PA: Baltic Region (Eocene/Oligocene) [A].
filiforceps Hennig, 1966b: 11 (Paradixa). PA: Baltic Region (Eocene/Oligocene) [A].
succinea Meunier, 1906f: 395 (Dixa). PA: Baltic Region (Eocene/Oligocene) [A].


Genus EUCORETHRINA Kalugina

EUCORETHRINA Kalugina in Kalugina & Kovalev, 1985: 79. Type species: Eucorethrina flexa Kalugina, 1985, by original designation.

flexa Kalugina in Kalugina & Kovalev, 1985: 79. PA: Russia (Siberia) (Middle Jurassic) [C].
convexa Lukashevich, 1996a: 49. PA: Mongolia (Jurassic) [C].


Genus SYNDIXA Lukashevich

SYNDIXA Lukashevich, 1996a:49. Type species: Syndixa sibirica Lukashevich, 1996, by original designation.

mollis Lukashevich, 1996a: 51. PA: Russia (Siberia) (Jurassic) [C].
sibirica Lukashevich, 1996a: 50. PA: Russia (Siberia) (Jurassic) [C].
?liasina Lukashevich, 1996a: 51. PA: Kyrgystan (Jurassic) [C].

 


This page last revised 17 November 2001