Eumerus bactrianus Stackelberg, 1952

Smit, John, Zeegers, Theo & Dorji, Phurpa, 2020, A new species of Eumerus (Diptera, Syrphidae) from the Kingdom of Bhutan, the easternmost representative of the bactrianus subgroup, ZooKeys 906, pp. 141-151 : 141

Eumerus bactrianus Stackelberg, 1952

Material examined.

Paratype Tajikistan • male; у. Копдара 1100 m, д. ВарзобаТадж., Гуссаковский [Kopdara 1100 m, d. VarzobaTadž., Gussakovskii]; 15 May [19]39 (ZIN).

Diagnosis.

Body golden- or bronze-green, often with purple tinge. Legs bronze-green, tip of femora and basal third of tibia as well as tarsomeres 1-4 brightly brownish yellow, apical tarsal segment dark. Metaleg with basotarsomere expanded and short, as longs as second and third segment combined. Basoflagellomere trapezoid (Fig. 2F ). s4 rectangular, roughly wrinkled, posterolateral narrowly rounded corners with long pile, posteromedially with a deep and sharp notch. Male terminalia figured in Grković et al. (2019: fig. 7A-D), anterior sustyle lobe elongated, ventral margin of posterior surstyle lobe greatly produced.

Figures

Figure 2. Eumerus druk Smit, sp. nov., male holotype A epandrium, lateral view B surstyle lobe, ventral view C hypandium, lateral view D hypandrium, ventral view E fourth sternum. Eumerus bactrianus Stackelberg, 1952, male F antenna, lateral view. Eumerus druk sp. nov. G antenna, lateral view. Eumerus turanicola Stackelberg, 1952, male H antenna, lateral view, after (Stackelberg 1952). Eumerus turanicus Stackelberg, 1952, male I antenna, lateral view, after (Stackelberg 1952).