identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
6C5CC960FFADC92E79B4FA3DCEC8FD2A.text	6C5CC960FFADC92E79B4FA3DCEC8FD2A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Microdontinae Rondani 1845	<div><p>Microdontinae Rondani, 1845</p><p>Diagnosis. Small to large-sized flies, ranging from 4–28 mm; antenna with or without dorsal arista; male eyes dichoptic (except Spheginobaccha chillcotti). Thorax with postpronotum mostly pilose (except Ceriomicrodon petiolatus, Masarygus, Sulcodon, Surimyia, Paramixogaster, Piruwa, Schizoceratomyia); presence of complete postmetacoxal bridge (except few species of Rhoga and Spheginobaccha); wing with stigmal crossvein (except Spheginobaccha and Paramicrodon delicatulus), vein R 2+3 curved basally; legs with subbasal and subdistal cicatrices in femora and tibiae (except Masarygus palmipalpus, Piruwa phaecada, Schizoceratomyia flavipes). Abdomen with four preabdominal segments; male genitalia without postgonites; apical part of phallus elongated, without separate structures, basal part of phallus usually spherical. Phallus articulated basally with hypandrium (except Spheginobaccha guttula), phallapodeme absent (except some African species of Spheginobaccha) (Reemer 2012; Reemer &amp; Ståhls 2013a, b).</p><p>Key to the Indian genera of Microdontinae</p><p>1 Abdomen constricted or petiolate......................................................................... 2</p><p>- Abdomen oval or parallel sided.......................................................................... 4</p><p>2 Vein R 4+5 with or without posterior appendix; postpronotum pilose............................................... 3</p><p>- Vein R 4+5 always with posterior appendix; postpronotum bare............................... Paramixogaster Brunetti</p><p>3 Eye bare; postmetacoxal bridge complete, metapleura connected........... Indascia Keiser [ I. brachystoma (Wiedemann)]</p><p>- Eye short pilose; postmetacoxal bridge incomplete, metapleura separated…................ Spheginobaccha de Meijere</p><p>4 Antenna quite short, shorter than distance between antennal fossa and anterior oral margin, basoflagellomere as long as or longer than scape................................................ Archimicrodon Hull [ A. caeruleus (Brunetti)]</p><p>- Antenna relatively long, longer than distance between antennal fossa and anterior oral margin, basoflagellomere longer or shorter than scape..................................................................................... 5</p><p>5 Male basoflagellomere bifurcate; scutellum sulcate apicomedially; vein R 4+5 without posterior appendix.................................................................................................... Furcantenna Cheng</p><p>- Male basoflagellomere unfurcate; scutellum not sulcate apicomedially; vein R 4+5 with posterior appendix............... 6</p><p>6 Abdomen elongate, at least 1.5–2.5× as long as wide; anepisternum entirely pilose or only with small bare area ventrally; phallus barely projecting beyond apex of hypandrium........................................... Metadon Reemer</p><p>- Abdomen oval, at most 1–1.5× as long as wide; anepisternum with wide bare area.medially and ventrally; phallus projecting far beyond apex of hypandrium….......................................................... Microdon Meigen</p></div>	https://treatment.plazi.org/id/6C5CC960FFADC92E79B4FA3DCEC8FD2A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Sankararaman, Hariharakrishnan;Anooj, Sainulabdeen Sulaikha	Sankararaman, Hariharakrishnan, Anooj, Sainulabdeen Sulaikha (2025): Review of the Indian species of Metadon Reemer, 2013 (Diptera: Syrphidae: Microdontinae), with description of two new species. Zootaxa 5737 (4): 509-532, DOI: 10.11646/zootaxa.5737.4.3, URL: https://doi.org/10.11646/zootaxa.5737.4.3
6C5CC960FFACC92979B4FC82CEC9FF26.text	6C5CC960FFACC92979B4FC82CEC9FF26.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Metadon Reemer 2013	<div><p>Metadon Reemer</p><p>Type species. Microdon wulpii Mik: 143.</p><p>Type locality: Indonesia, Sumatra.</p><p>Diagnosis. The genus Metadon is recognized by vein R 4+5 with posterior appendix, a character shared only with the genera Microdon and Paramixogaster in India. It differs from these and all other microdontine genera by the following combination of characters: anepisternum pilose entirely or nearly so; more elongate abdomen (1.5–2.5× as long as wide); phallus of male genitalia barely projecting beyond apex of hypandrium and furcated aedeagus. Except for the four eastern Palaearctic species, Metadon bifasciatus Matsumura, M. brunneipennis (Huo, Ren &amp; Zheng), M. pingliensis (Huo, Ren &amp; Zheng) and M. spuribifasciatus (Huo, Ren &amp; Zheng), all other Metadon species have this unique combination of morphological features (Reemer &amp; Ståhls 2013a; Gilasian et al. 2015).</p><p>Biology. Host ants associated and immature stages of none of the Metadon spp. are known. The adults of Metadon mimic aculeate wasps belonging to Vespidae and Crabronidae ( Hymenoptera). In the present study, females of the new species, M. ghorpadei sp. n. and M. reemeri sp. n., were collected while perched on leaves of shrubs Diospyros montana and Chromolaena odorata respectively.</p><p>Key to the species of Metadon from India</p><p>1 Wing apex with a distinct infuscated area (Figs 4A, 4B, 6A, 6B, 7A, 7B, 8D); abdomen always with golden pilosity (Figs 4B, 4C, 6A, 8A)......................................................................................... 2</p><p>- Wing apex without any such areas (Figs 1, 2, 5, 9, 10, 11, 12); abdomen with silvery white, reddish or golden pilosity (Figs 1A, 5A, 9B, 12A)........................................................................................ 4</p><p>2 Tergites 2 and 4 ferruginous red (Figs 4A, 4B)..................................... Metadon auricinctus (Brunetti)</p><p>- Tergites 2 and 4 black (Figs 6A, 8A)...................................................................... 3</p><p>3 Antenna orange brown/tawny (Fig. 6F); hind femur entirely yellow (Fig. 6C); abdomen entirely golden pilose, without any distinct bare areas (Fig. 6A) …...................................... M. ghorpadei Anooj &amp; Sankararaman sp. nov.</p><p>- Antenna black (Fig. 7F); hind femur blackish on basal half (Fig. 8C); abdomen golden pilose, with distinct bare area on tergite 3 (Fig. 8A) …..................................................... M. reemeri Sankararaman &amp; Anooj sp. nov.</p><p>4 Dark violet–black species, thorax with short dense black pilosity; thorax and abdomen unicolorous (Fig. 12) …............................................................................................ M. unicolor (Brunetti)</p><p>- Colour not as above, thorax blackish either with silvery or golden pilosity........................................ 5</p><p>5 Abdomen either wholly or partly brick or ferruginous red, with silvery or golden pilosity (Figs 1A, 9B, 10B, 10F)........ 6</p><p>- Abdomen black to dark brown, with golden pilosity (Figs 5B, 11B)............................................. 7</p><p>6 Face with silvery white pilosity (Figs 1C, 2C); scutellum trapezoidal (Figs 1A, 2A); Wing pale blackish, anteriorly dark (Figs 1A, 2B); abdomen brick red except tergite 1 black (Figs 1A, 2A), legs with white pilosity (Figs 1A, 1B)................................................................................................ M. annandalei (Brunetti)</p><p>- Face with red pilosity (Fig. 9D); Scutellum semicircular (Fig. 9A); wing tinged with yellow (Fig. 9A); abdomen black except tergites 4 red pilose (Fig. 9B), legs with red pilosity (Fig. 9B).............................. M. ruficaudus (Brunetti)</p><p>7 Antenna black (Figs 11A, 11B); wing pale grey (Fig. 11B) ............................... M. squamipennis (Brunetti)</p><p>- Antenna brown/tawny (Figs 5A, 5B); wing hyaline (Fig. 5B)................................. M. flavipes (Brunetti)</p></div>	https://treatment.plazi.org/id/6C5CC960FFACC92979B4FC82CEC9FF26	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Sankararaman, Hariharakrishnan;Anooj, Sainulabdeen Sulaikha	Sankararaman, Hariharakrishnan, Anooj, Sainulabdeen Sulaikha (2025): Review of the Indian species of Metadon Reemer, 2013 (Diptera: Syrphidae: Microdontinae), with description of two new species. Zootaxa 5737 (4): 509-532, DOI: 10.11646/zootaxa.5737.4.3, URL: https://doi.org/10.11646/zootaxa.5737.4.3
6C5CC960FFABC92879B4FB3FC8C5FF38.text	6C5CC960FFABC92879B4FB3FC8C5FF38.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Metadon annandalei (Brunetti 1907)	<div><p>Metadon annandalei (Brunetti)</p><p>(Figs 1–2)</p><p>Microdon annandalei Brunetti 1907: pl. xiii, fig. 10; 1908: 91. Type locality: Soondrijal, Nepal [HT ♂, NCZSI]</p><p>Metadon annandalei (Brunetti): Reemer &amp; Ståhls 2013a: 134 (new combination).</p><p>Diagnosis. This species is readily recognized by its bicolorous body. Head, thorax and abdominal tergite 1 black, tergites 2–5 brick red (Figs 1, 2). Body length: 9.5–11 mm. Head. Face black, with dense silvery white pilosity (Fig. 1C), occiput ventrally white pilose. Eye bare. Antenna black (Figs 1, 2), scape as long as combined length of pedicel and basoflagellomere. Thorax. Entirely black with sparse silvery white pilosity (Fig. 1B). Anepisternum, anepimeron and katepisternum, black; silvery white pilose. Scutellum trapezoid with slightly concave posterior margin (Figs 1A, 2A), silvery white pilose. Wing. Grey, darker on apical half (Fig. 2B). Legs. Black, silvery white pilose (Figs 2B, C). Abdomen. Tergite 1 black, tergite 2–5 brick red; silvery white pilose on tibiae and tarsi (Fig. 2A). Sternites brick red; silvery white pilosity.</p><p>Type material. Holotype, male: “ Soondrijal // Nepal // “ Microdon // annandalei // Brunetti ♂ // TYPE” “ Micro . // annanadalei // Brun . Type ♂ // det. Brun . 19013” “1205 // 15” “TYPE” [NZCZSI].</p><p>Additional material examined. 1 ♀, INDIA: Assam; Shillong 5000 ft; D9063, 02.vi.1924; coll. Fletcher (NPC) .</p><p>Distribution. Bangladesh, India (Assam, Himachal Pradesh, Meghalaya, Uttarakhand and West Bengal), Myanmar, Nepal and Pakistan.</p><p>Remarks. M. annandalei (Brunetti) was originally described based on a male specimen collected from Soondrijal (Sundarijal now), Nepal, deposited in the NCZSI. This species looks similar to the Afrotropical species M. inermis (Loew) in having black thorax and brick red abdomen, but can be separated by the black legs (in M. inermis, legs brick red to tawny, except coxae). The coloration of body and wings of M. annandalei are very similar to those of Anterhynchium abdominale (Illiger) ( Hymenoptera: Vespidae) (Fig. 3), a widely distributed potter wasp species in India, which might be the possible model for this species.</p></div>	https://treatment.plazi.org/id/6C5CC960FFABC92879B4FB3FC8C5FF38	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Sankararaman, Hariharakrishnan;Anooj, Sainulabdeen Sulaikha	Sankararaman, Hariharakrishnan, Anooj, Sainulabdeen Sulaikha (2025): Review of the Indian species of Metadon Reemer, 2013 (Diptera: Syrphidae: Microdontinae), with description of two new species. Zootaxa 5737 (4): 509-532, DOI: 10.11646/zootaxa.5737.4.3, URL: https://doi.org/10.11646/zootaxa.5737.4.3
6C5CC960FFAAC92B79B4FA7FC91CFC6C.text	6C5CC960FFAAC92B79B4FA7FC91CFC6C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Metadon auricinctus (Brunetti 1908)	<div><p>Metadon auricinctus (Brunetti)</p><p>(Figs 4A–D)</p><p>Microdon auricinctus Brunetti 1908: 93 . Type locality: Kandy, Sri Lanka [HT ♂, NHMUK]</p><p>Metadon auricinctus (Brunetti): Reemer &amp; Ståhls 2013a: 134 (new combination).</p><p>Diagnosis. Body length: 13 mm. M. auricinctus looks close to M. ghorpadei sp. nov. and M. reemeri sp. nov. in having a dark (sub)apical wing spot, however it can be differentiated from the latter two by the red coloured abdominal tergites 4 and 5 (in M. ghorpadei and M. reemeri tergite 4 and 5 black). It is also relatively similar to M. ruficaudus (Brunetti) by the red coloured tergite 4 and 5, but can be differentiated by the coloration of antenna and apical wing spot (In M. ruficaudus antenna tawny-red and apical wing spot absent). Head. Face ferruginous; golden pilose, occiput ventrally golden pilose (Fig. 4B). Eye bare. Antenna black, except scape reddish brown at base; scape as long as combined length of pedicel and basoflagellomere; base of the scape somewhat brownish. Thorax. Mesonotum (Figs 4A, D) predominantly black, reddish sublaterally; microtrichose, transverse fasciae of golden pile along anterior margin, transverse suture and posterior margin; sublateral vittae of golden pilosity from postpronotum to postalar callus (Figs 4A, B). Anepisternum, anepimeron and katepisternum, yellowish brown; entirely golden pilose. Scutellum semicircular, black brown; golden pilose. Wing. (fig. 4B) Yellow, along vein Sc up to cell bm, blackish apically extending little beyond posterior appendix in vein R 4+5. Legs (Figs 4B, C and D). Tawny, golden pilose. All coxae dark brown, golden pilose; rest of the segments tawny; yellow microtrichose.</p><p>Abdomen. Tergite 1 black, golden pilose posteriorly. Tergite 2 mostly ferruginous red, except black anteromedially; golden pilose (Fig. 4A). Tergite 3 black, except ferruginous red along lateral margin; thick transverse fasciae of golden pile along anterior margin extending throughout the lateral margin (Fig. 4C). Tergites 4 and 5 ferruginous red; fascia of gold pile along anterior margin, golden pilose otherwise. Sternites brown; pale brown pilose.</p><p>Female. Unavailable in the present study.</p><p>Type material. Holotype, male: “ Kandy // Ceylon, x.07 ” “Pres. by // E. Brunetti // Brit. Mus. // 1927–184” “Holo- // type” [round, red margin] “♂ // Type” [round, red margin] “ Microdon // auricincta // Bru TYPE ♂” “ NHMUK010369929 ” [QR code] (NHMUK) [photograph(s) of primary type studied].</p><p>Distribution. India (Maharashtra and West Bengal), Sri Lanka and Taiwan</p><p>Remarks. This species was originally described from a single male collected from Kandy, Sri Lanka. Brunetti (1908) misinterpreted the holotype as female, on re–examining the holotype at NHMUK, Reemer and Ståhls (2013a) corrected it as male. Apart from the type locality Kandy, Sri Lanka, Brunetti (1923) listed this species from India, “Pashoke, Darjiling district” (Peshok tea garden, Darjeeling, West Bengal now) and “Talewadi, N. Kanara district” (Talawade, Pune, Maharastra now).There are observations in iNaturalist, with the information on the locality obtained from these observations, this species has been reported from: Ratnapura, Sri Lanka (https://www.inaturalist.org/ observations/25222047) and Matheran, Maharashtra (https://www.inaturalist.org/observations/54921821) confirms the distributional range of this species.</p></div>	https://treatment.plazi.org/id/6C5CC960FFAAC92B79B4FA7FC91CFC6C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Sankararaman, Hariharakrishnan;Anooj, Sainulabdeen Sulaikha	Sankararaman, Hariharakrishnan, Anooj, Sainulabdeen Sulaikha (2025): Review of the Indian species of Metadon Reemer, 2013 (Diptera: Syrphidae: Microdontinae), with description of two new species. Zootaxa 5737 (4): 509-532, DOI: 10.11646/zootaxa.5737.4.3, URL: https://doi.org/10.11646/zootaxa.5737.4.3
6C5CC960FFA7C92579B4FBC1C9BCF804.text	6C5CC960FFA7C92579B4FBC1C9BCF804.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Metadon flavipes (Brunetti 1908)	<div><p>Metadon flavipes (Brunetti)</p><p>(Figs 5A–C)</p><p>Microdon flavipes Brunetti, 1908: 92 . Type locality: Mergui, Myanmar [HT ♀, NZCZSI]</p><p>Metadon flavipes (Brunetti): Reemer &amp; Ståhls 2013a: 134 (new combination).</p><p>Diagnosis. Body length: 7.5 mm. Metadon flavipes looks very close to M. squamipennis (Brunetti), but differs from it in the coloration of the antenna and wing (in M. squamipennis, antenna black and wing pale grey). Head. Face black to dark brown, golden pilose (Fig. 5C); occiput, golden pilose ventrally. Eye bare. Antenna (pedicel and basoflagellomere missing in the holotype) brown, scape as long as combined length of pedicel and basoflagellomere.</p><p>Thorax. Mesonotum black (Fig. 5B); pale yellow microtrichose; transverse fasciae of golden pile one each along anterior margin and transverse suture. Anepisternum, anepimeron and katepisternum, brown; golden pilose. Scutellum semicircular, black; dense golden pilose. Wing. (Fig. 5B) Hyaline, microtrichose. Legs. Tawny, yellow pilose. Coxae dark; golden pilose; rest of the segments tawny; yellow microtrichose. Abdomen. (Fig. 5B) Brown, sparse yellow microtrichose. Tergite 1 brown, golden pilose. Tergite 2 black, golden pilose laterally. Tergite 3 black, microtrichose, thick golden pile laterally. Tergites 4 and 5 mostly black; vittae of dense golden pilosity extending on both these tergites together, oblique and connected posteriorly, forming “V” like appearance (Fig. 5A). Sternites brown; pale brown pilose.</p><p>Type material. Holotype, female: “ Mergui // 6885 // 10” “TYPE” “ Micro . // flavipes // Brun ♀ // TYPE // det. Brun . 1901 3 ” “ Microdon flavipes Brunetti ♀TYPE ” (NZCZSI).</p><p>Distribution. India (Meghalaya) and Myanmar. Brunetti (1910) and Ghorpadé (2019) listed this species from Sri Lanka (Nitre Cave, Ceylon) but remain doubtful.</p><p>Remarks. M. flavipes (Brunetti) was described based on a series of specimens collected from Mergui, southern Burma / Myanmar (holotype female and 3 paratype females). Brunetti (1923) reported this species from India based on a male and female specimen from Tura, Garo hills, Assam (now in Meghalaya) collected in October 1917, and all the specimens are deposited in NZCZSI, Kolkata.</p></div>	https://treatment.plazi.org/id/6C5CC960FFA7C92579B4FBC1C9BCF804	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Sankararaman, Hariharakrishnan;Anooj, Sainulabdeen Sulaikha	Sankararaman, Hariharakrishnan, Anooj, Sainulabdeen Sulaikha (2025): Review of the Indian species of Metadon Reemer, 2013 (Diptera: Syrphidae: Microdontinae), with description of two new species. Zootaxa 5737 (4): 509-532, DOI: 10.11646/zootaxa.5737.4.3, URL: https://doi.org/10.11646/zootaxa.5737.4.3
6C5CC960FFA6C92779B4FF0DCF56FB4C.text	6C5CC960FFA6C92779B4FF0DCF56FB4C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Metadon ghorpadei Anooj & Sankararaman 2025	<div><p>Metadon ghorpadei Anooj &amp; Sankararaman sp. nov.</p><p>(Figs 6A–F)</p><p>Diagnosis. Among the Oriental species of Metadon, six other described species have dark (sub)apical wing spot. Out of this, M. ghorpadei sp. nov. is close to M. achterbergi Reemer from Vietnam and M. reemeri sp. nov. from India by overall body coloration and golden pilosity, but can be differentiated by the following characters: scape and pedicel pale brown (Fig. 6F), basoflagellomere tawny, much paler; antennal scape shorter than combined length of pedicel and basoflagellomere; Mesoscutum with transverse fascia of pale white pile sparsely distributed along anterior margin, posterior margin bare; apical wing spot, extending only up to posterior appendix in vein R 4+5 (Fig. 6A). All coxae yellowish brown (Fig. 6D); Abdomen entirely golden microtrichose, tergites 3, 4 and 5 golden pilose, without any black pile (in M. achterbergi antenna blackish brown; scape as long as combined length of pedicel and basoflagellomere; mesoscutum with dense golden pile of transverse fasciae along anterior margin and posterior margin; apical wing spot, extending up to cross vein r-m; fore coxa yellow, mid and hind coxae dark brown; abdomen with golden and black microtrichose, tergites 3, 4 and 5 mostly black pilose, golden pilose only along anterior margin of these tergites). This new species also differs from M. reemeri sp. nov. by the colour of antennae, unicolorous hind femur and abdomen completely golden pilose, without any distinct bare area.</p><p>Description (based on holotype). FEMALE. Body length: 15.6 mm. Head (Figs 6E, F). Face occupying about 1/2 of head width in frontal view (Fig. 6E); dark brown; golden pilose, very narrowly bare medially above the edge of mouth extending up to the base of the antennae. Gena brown, golden pilose. Lateral oral margin produced (Fig. 6F). Frons, vertex and occiput brown; golden pilose, except occiput ventrally pale golden pilose. Narrow bare area from apex of ocellar triangle to base of frons. Eye bare.Antennal fossa wider than high.Antennae (Fig. 6F) with scape and pedicel pale brown/tawny, basoflagellomere tawny. Antennal ratio 4: 1: 3.7. Thorax. Mesoscutum blackish brown; golden pilose, anterior margin with transverse fascia of sparsely distributed golden pile, thicker fascia of golden pile along transverse suture both interrupted medially and largely restricted to the lateral sides, posterior margin bare. Postpronotum and postalar callus yellowish brown; dense golden pilose. scutellum semicircular (Fig. 6A); blackish brown; golden pilose. Scutellum semicircular; blackish brown; golden microtrichose and indistinct. Anepimeron and katepisternum yellowish brown; golden pilose (Fig. 6D). Other pleurites yellowish brown. Katatergum and anatergum short microtrichose. Calypter and halter yellowish. Wing (Figs 6A, B). Yellow on basal 3/4, blackish on apical 1/4, with coloration in posterior half less conspicuous. Apical wing spot not reaching rm cross vein, reaching only up to appendix in vein R 4+5. Microtrichose, except bare on 1st costal cell, narrowly along vein RS in cell R 1, basal 3/4 of cell R, anterobasal 1/4 of cell CuP, basomedian 9/10 of alula. Cell bm microtrichose; isolated hyaline patch on cell R 2+3 and posterior basal cell. Legs (Fig. 6C). Yellow; golden pilose. All coxae yellow, except for the distal margin which is blackish brown; golden pilose. Trochanter yellow; golden pilose. All femur and tibiae entirely yellow. Abdomen. Tergites black, entirely golden microtrichose without distinct bare areas (Fig. 6A). Tergite 3, 4 and 5 each with a transverse fascia of golden pile along anterior margin. The golden pile on anterior margin of tergite 3 indistinct, pile on tergite 4 widening along lateral margin, tergite 5 golden pilose entirely. Sternites brown black, golden pilose, except sternite 5 mostly black pilose.</p><p>Male. Unknown.</p><p>Type material. Holotype, female: “ INDIA: New Delhi, Delhi University North Campus, Ridge forest // 28˚40’55” N 77˚13’5.5” E, 26.vii.2017 // sweep net, Anooj S.S. leg. // on Diospyros montana ( Ebenaceae)” “ Metadon ghorpadei ♀ // det. Anooj &amp; Sankararaman 2024” [red label] (NBAIR), Accession no. NIM/NBAIR/DIP/ META/H-161225. NCBI GenBank accession No. PV494985.1.</p><p>Distribution. India (New Delhi).</p><p>Etymology. This new species is sincerely dedicated to Dr. Kumar Ghorpadé, an Indian dipterist, an expert insect collector, who encouraged and trained the authors in syrphid taxonomy.</p></div>	https://treatment.plazi.org/id/6C5CC960FFA6C92779B4FF0DCF56FB4C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Sankararaman, Hariharakrishnan;Anooj, Sainulabdeen Sulaikha	Sankararaman, Hariharakrishnan, Anooj, Sainulabdeen Sulaikha (2025): Review of the Indian species of Metadon Reemer, 2013 (Diptera: Syrphidae: Microdontinae), with description of two new species. Zootaxa 5737 (4): 509-532, DOI: 10.11646/zootaxa.5737.4.3, URL: https://doi.org/10.11646/zootaxa.5737.4.3
6C5CC960FFA5C92179B4FB69C9C0FB32.text	6C5CC960FFA5C92179B4FB69C9C0FB32.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Metadon reemeri Sankararaman & Anooj 2025	<div><p>Metadon reemeri Sankararaman &amp; Anooj sp. nov.</p><p>(Figs 7, 8, 14A)</p><p>Diagnosis. Metadon reemeri sp. nov. looks somewhat similar to M. achterbergi but can be differentiated from the later by the following attributes; scape shorter than combined length of pedicel and basoflagellomere (Fig. 7F); apical wing spot, extending only up to posterior appendix in vein R 4+5 (Fig. 8D); all coxae blackish brown with golden pilosity, hind femur black on basal half; tergites 4 and 5 entirely golden pilose (Figs 7A, 8A) (in M. achterbergi, scape equal to combined length of pedicel and basoflagellomere; apical wing spot extending up to cross vein r–m; fore coxae yellow with golden pilosity, mid and hind coxae blackish brown, hind femur entirely yellow; tergite 4 with fascia of golden pile along anterior margin, widening laterally and with pair of sublateral oblong maculae of golden pile, black pilose in between, tergite 5 golden pilose anterolaterally). It differs from M. ruficaudus by the black antenna and golden pilosity on thorax (in M. ruficaudus, the colour of antenna and pilosity on thorax, ferruginous red).</p><p>Description (based on holotype). FEMALE. Body length: 16 mm. Head (Figs 7E, F). Face occupying 1/3 of head width in frontal view (Fig. 7E); brown, golden pilose, ventral half bare medially. Frons, vertex, gena and occiput brown, golden pilose, except occiput white pilose ventrally. Eye bare. Antenna brownish black; antennal ratio 4: 1.6: 3.4 (scape: pedicel: basoflagellomere). Scape 0.8× combined length of pedicel and basoflagellomere. Thorax (Figs 7C, D). Mesoscutum blackish brown, golden pilose, three thick transverse fasciae of golden pile one each along anterior margin, transverse suture and posterior margin close to scutellum. Fascia along transverse suture, medially interrupted by broad longitudinal vitta of golden pile. Postpronotum and postalar callus yellow, sparsely golden pilose. Scutellum semicircular, black brown, dense long golden pilose; anepisternum yellow brown with deep sulcus, entirely golden pilose; anepimeron brown with golden pilose; katepisternum black brown, golden pilose; meron (hypopleuron) brown black, golden pilose; katatergum and anatergum with long and short microtrichosity, respectively. Calypter and halter yellowish. Wing (Fig. 8D). Yellow-orange on basal 3/4, wing spot on apical 1/4, extending only up to posterior appendix in vein R 4+5; coloration less conspicuous in posterior half. Hyaline patch on base of cell R 2+3 and anterior of cell bm, Covered with microtrichosity except on cell bc, along vein Rs, basal 3/4 of cell br, basomedian 3/4 of cell bm, anterobasal 1/4 of cell cup and basomedian of alula. Legs. Orange-brown. All coxae black with golden pilose. Trochanters blackish brown. Fore and mid femur orange-brown, hind femur blackish on basal half (Figs 7D, 8C), remainder orange-brown. Tarsus orange-brown. Abdomen (Figs 8A, B, C). Tergites black, golden pilose. Tergite 1 golden pilose, tergite 2 mostly golden pilose, with bare part anterolaterally. Tergite 3 with fascia of golden pile along the anterior margin widening laterally, remainder black pilose (Fig. 8A). Tergites 4 and 5 entirely golden pilose. Sternites brown black, brown pilose, except sternite 5 black pilose.</p><p>Male. Unknown.</p><p>Type material. Holotype, female: “ INDIA. Tamil Nadu, Coimbatore, Siruvani hills // 10˚56’N 76˚41’E 29.vii.2019 // Sweep net, Sankararaman. H. leg. // on Chromolaena odorata ( Asteraceae)” “ Metadon reemeri ♀ // det. Sankararaman and Anooj 2024” [red label] (NBAIR), Accession no. NIM/NBAIR/DIP/META/H-251124, NCBI GenBank accession No. PV408304.1</p><p>Distribution. India (Tamil Nadu).</p><p>Etymology. We are pleased to name this new species after Dr. Menno Reemer (Naturalis Biodiversity Center), a Dutch entomologist, in recognition of his significant work on subfamily Microdontinae and also for his generous help rendered to the authors at various stages of this work.</p><p>Remarks. This new species shows resemblance to the potter wasp Rhynchium brunneum (Fabricius) ( Vespidae: Eumeninae) (Fig. 14B), especially in the flight and coloration of the wings with a small apical spot, abdominal tergites and legs. The wasps were also observed in the same habitat from where M. reemeri sp. nov. (Figs 7, 8, 14A) was collected. Rhynchium brunneum could be the possible model of Metadon spp. which has golden yellow or tawny-red pilosity on the body. Furthermore, both the model and mimic had similar flight patterns and the behaviour of actively displaying themselves to daylight.</p></div>	https://treatment.plazi.org/id/6C5CC960FFA5C92179B4FB69C9C0FB32	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Sankararaman, Hariharakrishnan;Anooj, Sainulabdeen Sulaikha	Sankararaman, Hariharakrishnan, Anooj, Sainulabdeen Sulaikha (2025): Review of the Indian species of Metadon Reemer, 2013 (Diptera: Syrphidae: Microdontinae), with description of two new species. Zootaxa 5737 (4): 509-532, DOI: 10.11646/zootaxa.5737.4.3, URL: https://doi.org/10.11646/zootaxa.5737.4.3
6C5CC960FFA3C92379B4FABECE65FE18.text	6C5CC960FFA3C92379B4FABECE65FE18.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Metadon ruficaudus (Brunetti 1907)	<div><p>Metadon ruficaudus (Brunetti)</p><p>(Figs 9, 10)</p><p>Microdon ruficaudus Brunetti 1907: pl. xiii, fig. 11; 1908: 93. Type locality: Calcutta, West Bengal, India. [HT ♂, NMHUK] Metadon ruficaudus (Brunetti): Reemer &amp; Ståhls 2013a: 135 (new combination).</p><p>Diagnosis. Metadon ruficaudus is similar to M. auricinctus, but can be readily differentiated by the characters mentioned in the key, mainly the coloration of antenna and wing. Body length: 14 mm. Head (Figs 9C, D). Face occupying about 1/3 of head width in frontal view; black; entirely red pilose. Frons, vertex and occiput black; red pilose. Eye bare. Antennal fossa about as high as wide [antennae missing in type specimen]. Thorax (Fig. 9A). Mesoscutum, postpronotum, postalar callus and scutellum black; red pilose. Scutellum semicircular, without calcars (Fig. 9A). Pleurae black. Anepisternum, anepimeron entirely red pilose. Katepisternum red pilose dorsally; bare ventrally. Katatergum long microtrichose. Anatergum short microtrichose (Fig. 9B). Wing (Fig. 9A). Hyaline, tinged with dark yellow, veins blackish brown; entirely microtrichose. Legs (Fig. 9B). Black; red pilose. Abdomen (Fig. 9B). Elongate, a little wider than thorax, with widest point at posterior 1/4 of tergite 2. All tergites black; tergite 1 and 2 bare, except red pilose laterally; tergite 3 black pilose, except red pilose laterally and posteromedially; tergite 4 entirely red pilose. Sternites black; reddish pilose.</p><p>Female. Unknown.</p><p>Type material. Holotype, male: “Holo– // type” [round, red margin] “♂ Type” [round, red margin] “ Calcutta // 26.ix.04 ” “ Microdon // ruficauda // Brunetti // TYPE (♀) ” “BRUNETTI COLLECTION” “Pres. by // E. Brunetti . // Brit. Mus. 1927–184” “ NHMUK010369992 ” [QR code] (NHMUK).</p><p>Additional material examined. 1♂, INDIA: West Bengal; Chapra Bengal, D/9060, coll. Mackenzie (NPC) .</p><p>Distribution. India (West Bengal) and Taiwan.</p><p>Remarks. M. ruficaudus was described by Brunetti (1907) based on a single male from Calcutta, West Bengal during September, 1904. Brunetti (1907) misinterpreted the holotype as a female, on re-examining the holotype at NHMUK this is found to be a male. Sack (1922) reported this species from Taiwan. The type was in Brunetti’s collection until 1927, after which it was deposited in NHMUK.</p><p>Additionally, there was also a male specimen collected from Chapra, West Bengal, available at NPC (Fig. 10) which looks close to M. ruficaudus by having hyaline wings tinged with dark yellow and tergite 4 entirely red pilose. However, it differs from M. ruficaudus by having yellow head and abdominal tergite 4 with a fascia of golden pile along the anterior margin (in M. ruficaudus, the head is black and tergite 4 without fascia of golden pile).</p></div>	https://treatment.plazi.org/id/6C5CC960FFA3C92379B4FABECE65FE18	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Sankararaman, Hariharakrishnan;Anooj, Sainulabdeen Sulaikha	Sankararaman, Hariharakrishnan, Anooj, Sainulabdeen Sulaikha (2025): Review of the Indian species of Metadon Reemer, 2013 (Diptera: Syrphidae: Microdontinae), with description of two new species. Zootaxa 5737 (4): 509-532, DOI: 10.11646/zootaxa.5737.4.3, URL: https://doi.org/10.11646/zootaxa.5737.4.3
6C5CC960FFA1C92279B4FDDDCB84FE3C.text	6C5CC960FFA1C92279B4FDDDCB84FE3C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Metadon squamipennis (Brunetti 1923)	<div><p>Metadon squamipennis (Brunetti)</p><p>(Figs 11A–C)</p><p>Microdon squamipennis Brunetti 1923: 316 . Type locality. Tura, Garo hills, Assam, India [HT ♀, NZCZSI]</p><p>Metadon squamipennis (Brunetti): Reemer &amp; Ståhls 2013a: 135 (new combination).</p><p>Diagnosis. Body length: 8 mm. Head. Face black to dark brown, golden pilose (Fig. 11C); occiput, golden pilose ventrally. Eye bare.Antenna black (Figs 11A, B), scape as long as combined length of pedicel and basoflagellomere. Thorax (Fig. 11B). Mesonotum black, golden microtrichose; transverse fasciae of golden pile one each along anterior margin and transverse suture. Anepisternum, anepimeron and katepisternum, brown; golden pilose (Fig. 11A). Scutellum semicircular, black; golden pilose posteriorly. Wing (Fig. 11B). Pale grey; microtrichose. Legs (Figs 11A, B). Black to dark brown; golden pilose. Coxae black; golden pilose, hind femur mostly black except apical 1/3 tawny, tibiae dark brown; brown microtrichose. Abdomen (Fig. 11B). Black, golden microtrichose. Golden pile along tergites 2 and 3 posteriorly. Tergites 4 and 5 black; golden pilosity similar to M. flavipes . Sternites brown; brown pilose.</p><p>Male. Unknown.</p><p>Type material. Holotype, female: “ Microdon // squamipennis // Bru Type ♀ ” “Zool. Surv. Ind. // E Tura // Garo hills, Assam // 1200–1500 ft., // 15.VI.15.vii.17 // S. Kemp ” “ Micro . // squamipennis // Brun . Type ♀ // det. Brun . 19013” “2364/HI” (NZCZSI).</p><p>Distribution. India (Meghalaya).</p><p>Remarks. Metadon squamipennis (Brunetti) is known only by the single female holotype so far. Brunetti (1923) described Metadon squamipennis (as Microdon) based on a female collected from Tura, Garo hills of Assam (in Meghalaya now), he also noted the closer resemblance to M. flavipes which is also known from the same locality. Metadon squamipennis differs from M. flavipes by the coloration of antenna, wings and legs (see diagnosis and key).</p></div>	https://treatment.plazi.org/id/6C5CC960FFA1C92279B4FDDDCB84FE3C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Sankararaman, Hariharakrishnan;Anooj, Sainulabdeen Sulaikha	Sankararaman, Hariharakrishnan, Anooj, Sainulabdeen Sulaikha (2025): Review of the Indian species of Metadon Reemer, 2013 (Diptera: Syrphidae: Microdontinae), with description of two new species. Zootaxa 5737 (4): 509-532, DOI: 10.11646/zootaxa.5737.4.3, URL: https://doi.org/10.11646/zootaxa.5737.4.3
6C5CC960FFA0C93D79B4FDB9C840FE64.text	6C5CC960FFA0C93D79B4FDB9C840FE64.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Metadon unicolor (Sankararaman & Anooj 2025) Sankararaman & Anooj 2025	<div><p>Metadon unicolor (Brunetti) comb. nov.</p><p>(Figs 12A, B)</p><p>Microdon unicolor Brunetti 1915: 255 . [HT ♂, NZCZSI]</p><p>Diagnosis. The violet-black body coloration of this species, precludes confusion with any other described Indian species of Metadon . Body length: 10–11 mm. Head [missing in the holotype, the notes provided here are after Brunetti (1915)]. Dark violet, yellow grey pilose; occiput, grey pilose ventrally. Eye bare. Antenna black; scape as long as combined length of pedicel and basoflagellomere. Thorax (Fig. 12A). Mesonotum violet-black, shining black microtrichose. Anepisternum, anepimeron and katepisternum, violet-black; long dense black pilosity (Fig. 12A). Scutellum semicircular, violet-black; black pilose. Wing (Fig. 12B). Brown, dark on anterior half; microtrichose. Legs (Fig. 12A). violet-black; black pilose. Coxae violet-black; black pilose, mid and hind tibiae with long silvery white pilosity. Abdomen (Figs 12A, 12B). violet - black, sparsely distributed long grey pilosity throughout. Fasciae of silvery white pile posterolaterally on tergites 3 and 4 (Fig. 12A). Sternites dark violet; mostly bare.</p><p>Female. Unknown.</p><p>Type material. Holotype, male: “Ind. Mus. // Dhauli // Puri dist. // Orissa // 6.xi.12 // Gravely” “ Microdon // unicolor // Brun Type ♂” “ Micro. // unicolor // Brun Type ♂ // det. Brun. 19213” “2163/HI” (NZCZSI).</p><p>Distribution. India (Orissa).</p><p>Remarks. This species was described by Brunetti (1915) based on a male collected near Puri, Orissa (Odisha now) and is known only by the holotype so far. It was listed under the “unplaced species of Microdon s.l. ” known from the Oriental region in Reemer and Ståhls (2013a: 142). Based on the wing venation, shape of the scutellum and the elongate abdomen, we place this species in Metadon .</p></div>	https://treatment.plazi.org/id/6C5CC960FFA0C93D79B4FDB9C840FE64	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Sankararaman, Hariharakrishnan;Anooj, Sainulabdeen Sulaikha	Sankararaman, Hariharakrishnan, Anooj, Sainulabdeen Sulaikha (2025): Review of the Indian species of Metadon Reemer, 2013 (Diptera: Syrphidae: Microdontinae), with description of two new species. Zootaxa 5737 (4): 509-532, DOI: 10.11646/zootaxa.5737.4.3, URL: https://doi.org/10.11646/zootaxa.5737.4.3
