Checklist of Diptera of the Czech Republic and Slovakia
electronic version 2, 2009
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Dixidae Schiner, 1868

Jan Ševčík1 & Jozef Halgoš2

1 University of Ostrava, Chittussiho 10, CZ-710 00 Ostrava & Silesian Museum, Tyršova 1, CZ-746 01 Opava, Czech Republic;
2 Department of Zoology, Comenius University, Mlynská dolina, SK-842 15 Bratislava, Slovakia;

Medium-sized (4.0-8.0 mm), yellowish to dark brown midges. Head with dichoptic eyes, without ocelli; antenna elongated with scape and pedicel short, flagellum with 14 segments. Mouthparts non-functional. Thorax hump-backed, mesonotum usually with dark longitudinal stripes, coxae relatively short, legs long and narrow, abdomen elongated and narrow. Wings hyaline, in species of Dixa Meigen, 1818 with dark markings, wing membrane without macrotrichia or scales. The larvae are aquatic, eucephalic, with several distinctive features (crowns, combs, terminal complex) that are widely used for the identification of species groups; they rest in a characteristic U-shaped position at the water meniscus. The larvae of Dixa prefer running waters, while those of Dixella Dyar & Shannon, 1924 live in stagnant waters. The adults are poor fliers and can be found near the larval habitat.

There are some 400 described species in the world (Wagner 1997, 2007) and about 30 species in Europe (Wagner 2007). Altogether 12 species are listed in the present checklist – 11 from the Czech Republic (10 in Bohemia, 11 in Moravia), and 10 from Slovakia. Since the PCV2 (Knoz 1997), no species have been added to the Czech Republic, but three species have been added for Bohemia and one for Moravia; and five species have been added to the fauna of Slovakia (Bitušík 1995, Bulánková & Halgoš 1999, Halgoš & Bulánková 2003, Martinovský 1998, Martinovský & Barták 2000, Ševčík 2006). Since the ECV1 (Ševčík & Halgoš 2006), one aditional species was recorded as new to the Czech republic (Ševčík 2007) and one as new for Bohemia (Ševčík et al. 2009). The species composition of the Dixidae in both the Czech Republic and Slovakia is still inadequately known, because no specific faunistic research has yet been carried out. Most of the records from Slovakia should be verified, because they are based only on the identification of the larvae.

The basic characteristics of the family were recently given by Disney (1999) and Wagner (1997), including keys to both the larvae and adults of most European species. The nomenclature in the present checklist follows that in the Fauna Europaea (Wagner 2007).


[1] Bitušík P. 1995: Výsledky prieskumu niektorých vodných biotopov v CHKO Kysuce. In Korňan J. (ed.): XXVI. Stredoslovenský tábor ochrancov prírody Kysuce. Slovenský zväz ochrancov prírody a krajiny, Spišská Nová Ves, pp. 21-30.

[2] Bulánková E. & Halgoš J. 1999: New data on the distribution of Dixidae (Diptera) in Slovakia. In Jedlička L. (ed.): Dipterologica Bohemoslovaca, Vol.  9. Slovak Entomological Society, Bratislava, pp. 25-29.

[3] Halgoš J. & Bulánková E. 2003: First record of the species of the genus Dixella Dyar & Shannon, 1924 (Dixidae, Diptera) from Slovakia. Biologia, Bratislava 58: 178.

[4] Disney R.H.L. 1999: British Dixidae (meniscus midges) and Thaumaleidae (trickle midges): keys with ecological notes. Freshwater Biological Association Scientific Publication No. 56. 129 pp.

[5] Knoz J. 1997: Dixidae.  In Chvála M. (ed.): Check List of Diptera (Insecta) of the Czech and Slovak Republics. Karolinum – Charles University Press, Prague, p. 33.

[6] Martinovský J. 1998: Dixidae. In Rozkošný R. & Vaňhara J. (eds): Diptera of the Pálava Biosphere Reserve of UNESCO I. Folia Facultatis Scientiarum Naturalium Universitatis Masarykianae Brunensis, Biologia 99: 91-92.

[7] Martinovský J. & Barták M. 2000: Dixidae. In Barták M. & Vaňhara J. (eds): Diptera in an Industrially Affected Region (North-Western Bohemia, Bílina and Duchcov Environs), I. Folia Facultatis Scientiarum Naturalium Universitatis Masarykianae Brunensis, Biologia 104: 113-114.

[8] Ševčík J. 2006: Faunistic records from the Czech and Slovak Republics: Ditomyiidae, Keroplatidae, Mycetophilidae, Dixidae. Entomofauna carpathica 18: 46.

[9] Ševčík J. 2007: Faunistic records from Czech Republic and Slovakia. Dixidae. In Stloukalová V. (ed.): Dipterologica bohemoslovaca, Vol. 14. Acta Zoologica Universitatis Comenianae 47: 253-254.

[10] Ševčík J., Barták M. & Vaněk J. 2009: Dvoukřídlí (Diptera) čeledí Anisopodidae (stružilkovití), Mycetobiidae a Dixidae (komárcovití) vysokých poloh Krkonoš (Česká republika). Opera Corcontica 46:159-164.

[11] Ševčík J. & Halgoš J.  2006: Dixidae Schiner, 1868. In Jedlička L., Stloukalová V. & Kúdela M. (eds): Checklist of Diptera of the Czech Republic and Slovakia. Electronic version 1. <>. Retrieved 25.08.2009.

[12] Wagner R. 1997: Family Dixidae. In Papp L. & Darvas B. (eds): Contributions to a Manual of Palaearctic Diptera. Vol. 2. Nematocera and Lower Brachycera. Science Herald, Budapest, pp. 299-303.

[13] Wagner R. 2007: Fauna Europaea: Dixidae. In Jong H. de (ed.): Fauna Europaea: Diptera, Nematocera. Fauna Europaea version 1.3. <>. Retrieved 25.08.2009.

Dixa Meigen, 1818
dilatata Strobl, 1900 CZ   (B M ) SK record from SK based on larvae
maculata Meigen, 1818 CZ   (B M ) records of this species from SK based on larvae as "D. maculata complex" are not accepted here
nebulosa Meigen, 1830 CZ   (B M ) SK
nubilipennis Curtis, 1832 CZ   (B M ) SK record from SK based on larvae
puberula Loew, 1849 CZ   (B M ) SK
submaculata Edwards, 1920 CZ   (B M ) SK
Dixella Dyar & Shannon, 1924
aestivalis (Meigen, 1818) CZ   (B M ) SK previous record from SK [3] was based on larva
amphibia (De Geer, 1776) CZ   (B M )
autumnalis (Meigen, 1838) CZ   (B M ) SK record from SK based on larva
hyperborea (Bergroth, 1889) CZ ( M ) SK
nigra (Staeger, 1840) SK
serotina (Meigen, 1818) CZ   (B M ) SK record from SK based on larva