Medetera brevitarsa, Parent, 1927

Kejval, Zbyněk & Pollet, Marc, 2023, The genus Medetera (Diptera: Dolichopodidae) in the Czech Republic with first records of twelve species, Zootaxa 5254 (1), pp. 69-93 : 75

M. brevitarsa Parent, 1927

( Figs 5, 9 )

Material examined. Bohemia: Rozvadov (6341), Diana NR, 49°38′02″N 12°34′42″E, 500–530 m, Fagus , 13.vii.2020, 1 ♁ ( MCH) . Vranov (6542), Starý Hirštejn NR, top and SW slope, 49°28′20″N 12°42′51″E, 800–878 m, Fagus , 22.vi.2020, 1 ♁ 1 ♀ ( MCH) . Němčice (6544), Nový Herštejn NR, 49°24′53″N 13°3′55.5″E, 625–680 m, Fagus , 19.vi.2020, 1 ♀ ( MCH) . Česká Kubice, 6 km W (6642), Dlouhá skála Mt. (top env.), 49°22′15.5″N 12°46′28″E, 920–969 m, Fagus , 22.vii.2020, 1 ♀ ( MCH) . Pec (6642), Čerchov Mt. (top env.), 49°23′00″N 12°47′01″E, 1030–1041 m, Fagus , 5.vii.2020, 1 ♀ ( MCH) ; ditto, Čerchovské hvozdy NNR, SE slope, 49°22′49″N 12°47′43″E, 750–1025 m, Fagus , 5.vii.2020, 1 ♁ 3 ♀♀ ( MCH) ; ditto, 10.vii.2020, 1 ♁ ( MCH) ; Hamry, 2.5 km W (6744), Ostrý potok (stream) valley, 49°12′37″N 13°07′14″E, 850–1000 m, 16.vi.2022, 1 ♁ ( MCH) .

Distribution. Belgium, Romania ( Negrobov & Naglis 2016), Sweden ( Persson et al. 2019) and Czech Republic (present paper), The species has most likely a much wider distribution in central Europe (M. Pollet, unpubl. data).

Status in CZ. The first records are given herein.

Ecology. Seemingly confined to natural submontane forests in Bohemia, where it occurs exclusively on tree trunks, in relatively humid sites. All above listed localities are nature reserves. In Belgium, it has also been encountered in lowland humid forests ( Pollet & Grootaert 1987).

Remarks. Medium-sized, brownish-black species of the Medetera signaticornis –pinicola species group, with robust legs and fore tarsi slightly shorter (0.8 x) than fore tibiae ( Fig. 9 ). The characters of its hypopygium were never described; they appear to be strikingly similar to those of M. polonica Negrobov & Capecki, 1977 .

Figures

FIGURES 5–10. 5–8, Medetera habitus (males), lateral view: 5, M. brevitarsa Parent (Čerchovské hvozdy NNR, hypopygium removed); 6, M. insignis Girschner (Horšovský Týn); 7, M. parenti Stackelberg (Hradec); 8, M. tenuicauda Loew (Valtice); 9, M. brevitarsa, tibia and tarsus of fore leg; 10, M. jugalis Collin (Široké pole), hypopygium, lateral view; all photos by Z. Kejval.