Checklist of Diptera of the Czech Republic and Slovakia
electronic version 2, 2009
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Ditomyiidae Edwards, 1921

Vladimír Košel1 & Jan Ševčík2

1 Department of Zoology, Komenský University, Mlynská dolina B-l, SK-842 15 Bratislava, Slovakia;
2 University of Ostrava, Chittussiho 10, CZ-710 00 Ostrava & Silesian Museum, Tyršova 1, CZ-746 46 Opava, Czech Republic;

Small flies (6.0-8.0 mm) with long, slender legs. Body yellowish-brown, usually with brown markings. Head with well developed haired eyes and 3 ocelli. Antenna 2+14 segmented, flagellomeres cylindrical or compressed and pectinate. Mesonotum usually with three longitudinal dark stripes. Postpronotum with long fine seta or setae. Wings relatively broad, slightly smoky or patterned with dark transverse bands. R4 long, ending in C laterally. Sc short, sclerotized only at base, ending free. Wing membrane with macrotrichia. The larvae are white, with head capsule strongly sclerotized, and prothorax and eight abdominal segments with spiracles (peripneustic type). The pupa is free, without a web cocoon.

The larvae (Ditomyia Winnertz, 1846) are mycophagous, living in the fruiting bodies of various tree fungi (e.g. Polyporus sp. div., Trametes sp. div.) where they pupate (c.f. Ševčík 2001). The larvae of Symmerus Walker, 1848 probably develop in rotting wood. The adults occur mostly in the undergrowth of deciduous or mixed forests, in shaded places alongside streams, the overhang of stream banks, and in the space between bank tree roots.

There are about 80 species in the world, 19 species in three genera in the Palaearctic region, and four species in Europe (Chandler 2007, Mamaev & Krivosheina 1988, li et al. 2000). In the present checklist, four species are reported from the Czech Republic (both for Bohemia and Moravia) and four species from Slovakia. Since the ECV1 (Košel & Ševčík 2006), the extremely rare species Ditomyia macroptera hitherto known from the Czech  Republic (both Bohemia and Moravia, Ševčík 2004, Ševčík et al. 2005), has been recorded from Slovakia (Ševčík 2007).


[1] Chandler P.J. 2007: Ditomyiidae. In Jong H. de (ed.): Fauna Europaea: Diptera, Nematocera. Fauna Europaea version 1.3. <>. Retrieved 13.07.2009.

[2] Košel V. & Ševčík J. 2006: Ditomyiidae. In Jedlička L., Stloukalová V. & Kúdela M. (eds): Checklist of Diptera of the Czech Republic and Slovakia. Electronic version 1. <>. Retrieved 13.07.2009.

[3] Mamaev B.M. & Krivosheina N.P. 1988: Family Ditomyiidae. In Soós Á. & Papp L. (eds): Catalogue of Palaearctic Diptera. Vol. 3, Ceratopogonidae – Mycetophilidae. Akadémiai Kiadó, Budapest, pp. 197-199.

[4] Søli G.E.E., Vockeroth J.R. & Matile L. 2000: A.4. Families of Sciaroidea. In Papp L. & Darvas B. (eds): Manual of Palaearctic Diptera. Appendix. Science Herald, Budapest, pp. 49-92.

[5] Ševčík J. 2001: Diptera (excluding Mycetophilidae s. str.) associated with fungi in Czech and Slovak Republics: a survey of rearing records from 1998-2000. Acta Universitatis Carolinae Biologica 45: 157-168.

[6] Ševčík J. 2004: New data on Sciaroidea (Diptera) from the Czech and Slovak Republics, with descriptions of seven new species of Mycetophilidae. Časopis Slezského zemského muzea, Opava (A) 53: 49-74.

[7] Ševčík J. 2006: Faunistic records from the Czech and Slovak Republics. Ditomyiidae. In Kinkorová J. (ed.): Dipterologica bohemoslovaca, Vol. 13. Acta Universitatis Carolinae – Biologica 50: 137.

[8] Ševčík J. 2007: Faunistic records from Czech Republic and Slovakia. Ditomyiidae. In Stloukalová V. (ed.): Dipterologica bohemoslovaca, Vol. 14. Acta Zoologica Universitatis Comenianae 47: 249.

[9] Ševčík J., Kubík Š. & Barták M. 2005: Ditomyiidae. In Barták M. & Kubík Š. (eds): Diptera of Podyjí National Park and its environs. Česká zemědělská univerzita v Praze, Praha, pp. 46-47.

Ditomyia Winnertz, 1846
fasciata (Meigen, 1818) CZ   (B M ) SK
macroptera Winnertz, 1852 CZ   (B M ) SK occurrence confirmed in CZ (M) [6]
Symmerus Walker, 1848
annulatus (Meigen, 1830) CZ   (B M ) SK
nobilis Lackschewitz, 1937 CZ (B M ) SK