Medetera jugalis Collin, 1941

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 : 82

Medetera jugalis Collin, 1941

Material examined. Bohemia, Bílina , 2.5 km E (5448), Vršíček, 50°33′12″N 13°49′57″E, 420 m, mixed forest, MT, 13–28.v.1998, M. Barták leg., 1 ♁ ( NMPC) . Nemanice, SW of (6542), Nemanický potok (stream) env., 49°25′38″N 12°42′41″E, ca 500 m, Populus , 24.vii.2022, 1 ♁ ( MCH) .

Moravia: Bělá (6074), 49°58′26″N 18°09′06″E, 245 m, abandoned sand-pit env., Populus , 12.vii.2022, 1 ♁ ( MCH) . Podyjí NP, Široké pole (7161), 48°51′30″N 15°51′01″E, 270 m, meadow+river corridor, MT, 2.vii.– 9.viii.2003, M. Barták & Š. Kubík lgt., J. Olejníček det., 2 ♁♁ ( NMPC) .

Distribution. Widely distributed in northern and central Europe; also reported from Portugal ( Pollet et al. 2019).

Status in CZ. Previously recorded only from Babice nad Svitavou in southern Moravia, based on a single male specimen identified by O. Negrobov ( Olejníček & Rozkošný 1978). The relevant specimen (15.vii.1969, R. Rozkošný lgt.) is possibly deposited in MZMC (not available for study). The first records from Bohemia are presented herein.

Ecology. In Belgium, M. jugalis is mainly collected on trunks of poplar trees, in particular in humid biotopes.

Remarks. The male of this species is unequivocally recognized by the shape of its hypandrium with a ovoid terminal enlargement with a deep apical incision and bearing a small ventral spine at the bottom of this incision ( Fig. 10 , marked by arrow). Surprisingly, this rather distinctive character is not mentioned in the identification key by Negrobov & Naglis (2016), despite a previous note by the same authors ( Naglis & Negrobov 2014, page 240).

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.