Paragus thracusi Radenković, Likov et Vujić,

Radenković, Snežana, Likov, Laura, Ståhls, Gunilla, Rojo, Santos, Pérez-Bañón, Celeste, Smit, John, Petanidou, Theodora, Steenis, Wouter Van & Vujić, Ante, 2020, Three new hoverfly species from Greece (Diptera: Syrphidae), Zootaxa 4830 (1), pp. 103-124: 111-114

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Paragus thracusi Radenković, Likov et Vujić

sp. n.

Paragus thracusi Radenković, Likov et Vujić  sp. n.

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Figs 7View FIGURE 7, 8View FIGURE 8

Type material. HOLOTYPE: Greece, ♂, pinned, in NBCN. Original label: “Hellas, Thraki, Rodopi, Porto Lagos SE, 1.v.2000, leg. W. van Steenis, E. S. Bakker ”. 

Diagnosis. Paragus thracusi  sp. n. is by habitus most similar to P. oltenicus Stćnescu  , but easily distinguishable by the following characters: mesonotum of P. thracusi  sp. n. covered with longer erect whitish-yellow pile in contrast to short yellow adpressed pile in P. oltenicus  ; microtrichose maculae at the end of transverse suture present in P. thracusi  sp. n., but lack in P. oltenicus  ; punctuation of mesonotum scarce in P. thracusi  sp. n., but dense in P. oltenicus  ; femora dark-brown/black basally in P. thracusi  sp. n., while orange-yellow in P. oltenicus  ; tergum 1 black in P. thracusi  sp. n., and medially reddish in P.oltenicus  ; microtrichose fasciae on terga 2–4 distinct in P. thracusi  sp. n., but absent or scarce in P. oltenicus  ; microtrichia on terga completely whitish-yellow, while in P. oltenicus  partly black; black transversal maculae on terga 2–4 lack in P. thracusi  sp. n., but usually present in P. oltenicus  . Based on the male genitalia P. thracusi  sp. n. is immediately recognizable by the characters of hypandrium: pointed, hood shaped paramere and cliff shaped lingula.

Description. MALE. Head ( Figs 7View FIGURE 7 A–B). Face cream-yellow, with a faint brown macula on facial tubercle; ventral margin of face dark-brown/black, except the light-yellow frontal part; face and frons covered with only whitish pile; antennae long, basoflagellomere elongated and pointed, about 1.5 times as long as scape and pedicel together; arista 0.7 times the length of basoflagellomere; antennae predominantly brown, except orange basal 2/3 of basoflagellomere ventrally and pedicel ventrally; arista light-brown basally and dark-brown apically; eye contiguity 0.75 times the length of ocellar triangle; eyes with two clearly visible vittae of white pile, typical of the nominal subgenus; vertical triangle covered with grayish microtrichia in front of frontal ocellus, covered with light-yellow pile; occiput whitish microtrichose and with light-yellow pile, and with silver pile in lower parts, turning yellowish in upper parts. Thorax. Scutum black with paler anterior and posterior end of postalar callus, shiny, except two longitudinal submedian whitish microtrichose vittae ending at the level of transverse suture, and with two whitish microtrichose maculae at the end of transverse suture; mesonotum with scarce punctuation, and covered with longer erect whitish-yellow pile; metathoracic pleuron whitish microtrichose and pilose, except for the anteroventral part of posterior anepisternum and anepimeron, which are shining black; scutellum black in anterior half, orange-yellow in posterior half, without conspicuous teeth on posterior margin; wings hyaline, covered with microtrichia, except for basal cells, which are nearly entirely bare; halters light-brown, with a yellow knob; legs two colored, covered with whitish-yellow pile; femora dark-brown, black at base (pro- and mesofemora in basal 1/3, and metafemur in basal 2/3, except for tiny area near to the base yellow), and light-yellow apically; tibiae light-yellow in basal half, and dark-yellow in apical half, metatibia with brown submedian ring; tarsi orange-yellow (borders between tarsomeres black), basotarsomere of metatarsus little darker dorsally; claws yellow in basal half and black in the apical half. Abdomen ( Fig. 7CView FIGURE 7). Abdomen predominantly red-brown, covered with whitish-yellow pile and with three pairs of whitish-yellow microtrichose fasciae on terga 2–4; tergum 1 brown-black, more or less fused with tergum 2 that is dark-brown anteriorly to the microtrichose fasciae and laterally, while red-brown posteriorly; terga 3 and 4 predominantly red-brown, except dark-brown longitudinal areas near the lateral margins and on medial parts; tergum 5 red-brown; sterna translucent orange-brown (sternum 1 darker), covered with erect whitish pile; pregenital segment white microtrichose and pilose. Male genitalia ( Fig. 8View FIGURE 8). Hypandrium in lateral view wide ( Fig. 8AView FIGURE 8) with clearly developed lingula cliff shaped ( Fig. 8AView FIGURE 8: l); lateral lobe of aedeagus (= inferior claspers) well developed, almost quadrilateral in lateral view ( Fig. 8AView FIGURE 8: la); paramere (= superior claspers) pointed, hood shaped ( Fig. 8View FIGURE 8 A–B: p); ejaculatory apodeme pendulum like ( Fig. 8CView FIGURE 8); epandrium in lateral view narrow, with narrow, not prominent cercus ( Fig. 8EView FIGURE 8); surstylus (= styles) a little shorter than theca of epandrium ( Fig. 8EView FIGURE 8: sst), curved and tapering in dorsal view ( Fig. 8DView FIGURE 8: sst).

FEMALE. Unknown.

Etymology. The species is named after the type locality, in the North-Eastern part of Greece that belongs to the Thrace (Greek word: Θράκη), geographical and historical area in southeast Europe.

Distribution. Only known from Rhodope Mountains in Greece ( Fig. 6View FIGURE 6).