AnimaliaDipteraOpetiidaeTkočMichalRoháčekJindřichDiversity, distribution and biology of Romanian flat-footed flies (Diptera, Opetiidae and Platypezidae) with taxonomic notes on Callomyia saibhira ChandlerZookeys212201420144599511810.3897/zookeys.459.8376 Opetia nigra Meigen, 1830Figure 1Published records.

Orlát [Orlat, Sibiu, Transilvania] (Thalhammer 1899); Mehádia [Mehadia, Caraș-Severin, Banat] (Szilády 1941).

Material examined.

1 ♂, 1. vi. 2008, Banat, Sfânta Elena, 4km NE, Kulhavá skála, Vranovec cave (Figure 17), 300 m a.s.l., 44°42'12"N, 21°43'52"E, sweeping vegetation along brook, JR leg.

Distribution.

Palaearctic species. Recorded in Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Great Britain, Hungary, Ireland, Italy, Luxembourg, the Netherlands, Poland, Portugal, Romania, Slovakia, Spain, Sweden, Switzerland and Russia (ER).

Biology.

The adults run on broad leaves in wooded biotopes, where they sometimes form swarms. Its larvae are unknown. The adults were reared from very rotten beech wood and leaf litter (Speight et al. 1990, Chandler 2001) but the exact development substrate of the larvae remains unknown and thus these records need confirmation. The males can sometimes be caught by light trap (Chandler 2001), while the females can be collected by pitfall traps (Vaňhara 1986). The adults (mostly males) can be collected by sweeping undergrowth of various forests, sweeping on Atropa belladonna leaves proved to be particularly productive (pers. obs.). The species is bivoltine, adult flight period in central Europe is V–VI and VIII–X.

Opetia nigra Meigen, 1830, male habitus. Photo by J. Roháček.

Habitats of Opetiidae and Platypezidae in Romania: 17 Kulhavá skála, Vranovec cave 18 Alibeg brook valley. Photos by J. Roháček.

ThalhammerJ (1899) Ordo Diptera. Fauna regni Hungariae, III. Animalium Hungariae hucusque cognitorum enumeratio systematica. Edidit regia societas scientiarum naturalium Hungarica.Akadémiai Kiadó, Budapest, 76 pp.SziládyZ (1941) Clythiiden (Platypezidae) aus Ungarn (Diptera).Annales Musei Nationalis Hungarici, Zoologica43: 102104.SpeightMCGBlackithREBlackithRM (1990) Antichaeta brevipennis, Leucophenga maculata, Polyporivora picta and Tephrochlamys tarsalis (Diptera): insects new to Ireland.Irish Biogeographical Society Bulletin13(2): 131136.ChandlerPJ (2001) The flat-footed flies (Diptera: Opetiidae and Platypezidae) of Europe.Fauna Entomologica Scandinavica Volume 36, Brill, Leiden, Boston, Köln, 276 pp.VaňharaJ (1986) The flat-footed flies (Opetiidae and Platypezidae, Diptera) in a lowland forest. In: OlejníčekJSpitzerK (Eds) Dipterologica bohemoslovaca. Vol. 4. Jihočeské muzeum v Českých Budějovicích, Přírodní vědy, České Budějovice, 7984.