Merodon angustus, 2013

Vujić, Ante, Radenković, Snežana, Likov, Laura, Trifunov, Sonja & Nikolić, Tijana, 2013, Three new species of the Merodon nigritarsis group (Diptera: Syrphidae) from the Middle East, Zootaxa 3640 (3), pp. 442-464 : 444-445

publication ID	https://doi.org/ 10.11646/zootaxa.3640.3.7
publication LSID	lsid:zoobank.org:pub:1D130D7E-A84A-49B4-B895-08927793B1F2
DOI	https://doi.org/10.5281/zenodo.6158032
persistent identifier	https://treatment.plazi.org/id/03B98790-FFF0-FFE3-EAEB-FAF5FADCF843
treatment provided by	Plazi
scientific name	Merodon angustus
status

Treatment

Merodon nigritarsis View in CoL group

The putatively monophyletic nigritarsis group (Radenkoviċ et al. 2011) includes the following 15 species: M. angustus Vujiċ et Radenkoviċ n. sp. (similar to M. testaceus Sack ), M. crassifemoris , M. femoratoides , M. latifemoris , M. nigritarsis , M. nitidifrons Hurkmans, M. quadraticus Vujiċ et Radenkoviċ n. sp. (similar to M. latifemoris ), M. taniniensis Hurkmans, M. testaceus and M. toscanus , plus species from the M.alagoezicus complex: M. alagoezicus , M. hakkariensis Vujiċ et Radenkoviċ n. sp. (close to M. lucasi ), M. lucasi , M. satdagensis Hurkmans and M. schachti Hurkmans.

Diagnosis. Relatively large (11–17 mm) species with white microtrichose longitudinal stripes on black mesoscutum and white microtrichose transverse bands on orange-brown (in females orange-black) tergites ( Figs. 4 View FIGURE 4 B, 5A, 5B, 4A); at least tergite 2 with reddish-orange marks. Mesoscutum covered with erect, yellow pile. Pile on metasternum erect, as long as those on hind coxa. Abdomen elongate, narrow and tapering, always longer than mesoscutum and scutellum together ( Figs. 4 View FIGURE 4 A–B, 5A–B). Posterior part of mid coxa without long pile. Tarsi dark brown/black dorsally and orange ventrally; at least metatarsus of hind legs always darkened dorsally (exceptionally, some specimens of Merodon angustus n. sp. can have completely yellow tarsi). First flagellomere at most twice as long as wide ( Fig. 6 View FIGURE 6 ). Legs without spikes or other protuberances ( Figs. 7–9 View FIGURE 7 View FIGURE 8 View FIGURE 9 ). Male genitalia: anterior lobe of surstylus ( Fig. 10 View FIGURE 10 A: a) more or less of rhomboid shape, covered with dense short pile, except in the alagoezicus complex of species where the anterior lobe of the surstylus is transformed into a narrow, elongate, strongly curved projection ( Fig. 1 View FIGURE 1 : a); posterior lobe of the surstylus ( Fig. 10 View FIGURE 10 A: p) usually longer than anterior one; interior accessory lobe of posterior lobe of surstylus narrow and long (in lateral view, Fig. 12 View FIGURE 12 A: i); cercus rectangular, without prominences ( Fig. 12 View FIGURE 12 A: c). Hypandrium narrow, elongate and sickle–shaped ( Figs. 13 View FIGURE 13 A, 14A); posterior end of lateral sclerite of aedeagus tapering ( Fig. 14 View FIGURE 14 A: la); hypandrium usually with a pair of lateral projections ( Fig. 15 View FIGURE 15 A: lt); lingula developed ( Fig. 15 View FIGURE 15 A: l).