A new species of the genus Eumerus Meigen, 1822 (Diptera: Syrphidae) from Turkmenistan

Abstract

Eumerus badkhyziensis Mutin, sp. n. is described from Turkmenistan. The new species differs from its known congeners with red abdomen by unusual set of characteristics, including foremost the dichoptic bare eyes, wing without dark mark, lack of pollinose vittae on mesonotum and entirely pale pilose body.

Six new species of the genus Eumerus Meigen, 1822 from Iran (Diptera, Syrphidae)

“…The Old World phytophagous genus Eumerus Meigen, 1822 (Eristalinae, Merodontini) represents one of the most diverse genera within the family, with more than 300 species occurring frequently in arid and semi-arid regions of the world (Grković et al, 2015;Grković et al, 2019aGrković et al, , 2019bMutin, 2019;Barkalov et al, 2020;Aguandu-Aranda et al, 2022;Malidžan et al, 2022). The early stages of the Eumerus larvae feed on the roots, bulbs and stems of many plant families such as Liliaceae, Amarillidaceae, Orobanchaceae where some species are found to be seriously damage the commercial and ornamental harvests (Ricarte et al, 2008(Ricarte et al, , 2017Mutin, 2016Mutin, , 2019Souba-Dols et al, 2020). Prior to this study, the Iranian Eumerus fauna The following measurements are done as explained in and repeated here: width of head in frontal and dorsal views is measured at its maximum width; width of face is measured below the antennae; width of ocellar triangle is measured over the posterior ocelli dorsally; length of ocellar triangle is measured from the anterior end of the anterior ocellus to the midline posterior of the posterior ocelli; length of frontal triangle is measured from the anterior corner of the eye contiguity to the posterior corner of the lunule in dorsal view; length of vertical triangle is measured from the posterior corner of the eye contiguity to the anterior ocellus in dorsal view; the eye contiguity is the length in between the previous two measurements; width of vertex in dorsal view is measured between the posterior corner of the eyes (a) and over the posterior ocelli (b).…”

Review of the Eumerus tricolor species group (Diptera: Syrphidae) in Iran, with description of six new species

“…The genus Eumerus Meigen, 1822 (Syrphidae: Merodontini) with more than 300 described species is one of the most diverse genera of hoverflies, which largely inhabit arid and semi-arid regions of the world (Grković et al 2019a;Mutin 2019). Adults of Eumerus are distinguishable among syrphid genera by the recessive, biangulate wing vein M 1 in addition to their usually black or blackish-red aspect with greyish pollinosity of abdominal terga.…”

“…They are fast flying with a visiting preference for flowers belonging to different families such as Apiaceae, Euphorbiaceae, Asteraceae and Ranunculaceae (Grković et al 2019a). Despite Eumerus being primarily considered an Old World genus, with more than 170 and 70 species in the Palaearctic and Afrotropical regions respectively, the genus has been introduced to the Western Hemisphere in the wake of international trade with plant bulbs (Grković et al 2015(Grković et al , 2019a(Grković et al , 2019b; Mutin 2019).…”

“…The Eumerus larval infestation of roots, fruits, bulbs and stems of different plant families, including Liliaceae, Amerillaceae and Orobanchaceae, sometimes constitute serious damage to ornamental and crop plants. So, with feeding on a wide range of plant tissues and taxa, including commercial species, Eumerus is considered a polyphagous genus (Ricarte et al 2008(Ricarte et al , 2017Grković et al 2015;Mutin 2016Mutin , 2019; Souba-Dols et al 2020).…”