Revision of the Merodon bombiformis group (Diptera: Syrphidae) - rare and endemic African hoverflies Author Vujić, Ante E80A5C9B-5450-4E15-ACEB-FC3B94CF2244 University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia. ante.vujic@dbe.uns.ac.rs Author Radenković, Snežana 26DF35D9-55FA-4485-8E8C-C1F90EFE1036 University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia. snezana.radenkovic@dbe.uns.ac.rs Author Zorić, Ljiljana Šašić A0EFB962-F816-4399-A5F2-67839DD19CE8 University of Novi Sad, BioSense Institute, Dr Zorana Ðinđića 1, 21000 Novi Sad, Serbia. ljsasic@biosense.rs Author Likov, Laura 6787F9E8-3EA9-4695-B8A1-725787BCB9DD University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia. laura.likov@dbe.uns.ac.rs Author Tot, Tamara E4436AC7-B3B6-4899-838D-5A6ECD8E6BFB University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia. tamaratot90@gmail.com Author Veselić, Sanja 625C1317-F45B-46E8-B55E-51032B1F7C67 University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia. sanja.veselic@dbe.uns.ac.rs Author Djan, Mihajla BE29D9A9-CC69-416C-8F85-4B8AA99A6C71 University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia. mihajla.djan@dbe.uns.ac.rs text European Journal of Taxonomy 2021 2021-06-21 755 1 88 135 http://dx.doi.org/10.5852/ejt.2021.755.1401 journal article 5990 10.5852/ejt.2021.755.1401 fc3a8901-c995-49e0-b8b5-6ec0c9727de4 2118-9773 5013000 F8C5C34F-CCBB-420B-9319-1DA224A5D783 Merodon vittatus Vujić & Likov sp. nov. urn:lsid:zoobank.org:act: 591CEDD4-80E4-4978-B13E-3F66511C9026 Figs 1 , 4C , 5C , 6C , 7D–F , 8B , 9C , 10C , 11C , 12C , 18C , 21E Diagnosis Brown, large ( 12 mm ), striped species, with golden yellow pile on the tip of abdomen ( Fig. 5C ); frons and postpronotum dark brown; scutum with five pollinose vittae ( Fig. 10C ); metafemur with distinct apical thorn on triangular process ( Figs 6C , 8B ); terga 3 and 4 with broad medial pollinose fasciae ( Fig. 5C ). Similar to Merodon multifasciatus from which differs only in male genitalia with narrow, S-shaped posterior lobe of surstyle, gradually narrowing toward tip ( Fig. 7D : pl) (in M. multifasciatus broad, slightly curved, with almost parallel sides and rounded apex ( Fig. 13D : pl). Etymology The specific epithet ‘ vittatus ’ ‘wearing or carrying a vitta’, an adjective, refering to the broad golden gray fasciae on the terga 2–4. Material examined Holotype GHANA • 1 ♂ ; Transvolta Togoland , Amedzofe ; 6.853° N , 0.433° E ; 2 Nov. 1959 ; N.D. Jago leg.; FSUNS ID 04085 ; NBCN . Description Length: large species, body 12 mm , wing 8.5 mm (n = 1). Male HEAD ( Figs 4C , 9C , 11C , 12C ). Antenna ( Fig. 4C ) reddish-yellow; pedicel elongated, approximately as long as basoflagellomere (relation scape:pedicel: basoflagellomere =1.0: 2.5: 2.5); basoflagellomere concave dorsally, with acute apex; arista yellow to reddish, thickened basally, 1.7 times as long as basoflagellomere. Face dark brown, covered with gray pollinosity and whitish pile, except on bare medial vitta that occupies ¼ width of face. Oral margin protruded ( Fig. 9C ). Frons dark brown, inflated, covered with gray pollinosity and whitish pile. Vertical triangle isosceles ( Fig. 12C ), reddish, covered with a long, whitish pile. Ocellar triangle equilateral. Eye pile dense, gray, slightly longer than scape. Eye contiguity about 15 ommatidia long. Occiput reddish-brown, pollinose, covered with a whitish pile. THORAX ( Figs 6C , 8B , 10C ). Mesonotum black, except lateral side of scutum including postpronotum, postalar callus, and posterior margin of scutellum red-brown; covered with grayish-yellow pile; scutum with five pollinose longitudinal vittae ( Fig. 10C ). Pleuron black to dark brown, covered with gray pollinosity and the following parts with whitish to yellow pile: anterior part of proepimeron, posterior part of anterior anepisternum, most of the posterior anepisternum except anterior end, antero-ventral and postero-dorsal part of katepisternum and anepimeron. Wing hyaline, with dense microtrichia and yellow to brown veins. Calypter pale yellow. Halter with pale yellow pedicel and capitulum. All three femora dark brown; tibiae mostly reddish, medially dark brown; tarsi reddish ( Figs 6C , 8B ). Metatrochanter without calcar. Metafemur moderately thickened, with less developed apicoventral triangular lamina, more or less dentate, the apical dens is distinct ( Figs 6C , 8B ). Pile on legs predominantly whitish to yellow. ABDOMEN ( Fig. 5C ). Black to dark brown. Tergum 1 with gray pollinosity, covered with black basal sockets of pile and with short pale yellow pile; tergum 2 with pollinose posterior margin and narrow medial fascia, interrupted in the middle, covered with pale yellow pile; terga 3 and 4 with pollinose posterior margin and broad medial fasciae ( Fig. 5C ); tergum 3 covered with pale yellow pile except anterior half with few short black pile; tergum 4 covered with long golden-yellow pilosity ( Fig. 5C ). Sterna reddish-brown, covered with pale yellow pile. GENITALIA ( Figs 7D–F , 18C ). Posterior lobe of surstyle S-shaped, gradually narrowing toward tip ( Fig. 7D : pl); anterior margin of surstyle angular ( Fig. 7D : ams); cercus elongated ( Fig. 7D : c). Hypandrium with theca medially distinctly narrowed ( Fig. 7F ). Lateral sclerite of aedeagus small ( Fig. 18C : s). Fig. 17. Merodon lotus Vujić & Radenković sp. nov. , male genitalia. Paratypes. A–C . Specimen FSUNS (FSUNS ID ZA6_066). D–F . Specimen FSUNS (FSUNS ID ZA6_060). A, D . Epandrium, lateral view. B, E . Epandrium, ventral view. C, F . Hypandrium, lateral view. Abbreviations: ams = anterior margin of surstyle; c = cercus; pl = posterior lobe of surstyle. Scale bar = 0.25 mm. Female Unknown. Period of flight and distribution ( Fig. 1 ) Only the holotype is known, which originated from Ghana and was collected in November. It was found in a deciduous forest-woodland savanna type of vegetation.