Tabanus rondoniensis Henriques, Krolow, Zamarchi & Camargo, 2022

Henriques, Augusto Loureiro, Krolow, Tiago Kuetter, Zamarchi, Tallita Beatriz de Oliveira & Camargo, Luis Marcelo Aranha, 2022, Description of Tabanus rondoniensis (Diptera: Tabanidae), a new species of horsefly from the State of Rondonia, Brazil, Biodiversity Data Journal 10, pp. 76904-76904 : 76904

Tabanus rondoniensis Henriques, Krolow, Zamarchi & Camargo sp. n.

Materials

Type status: Holotype. Occurrence : recordedBy: T. Zamarchi; individualCount: 1; sex: female; Taxon : scientificNameID: urn:lsid:zoobank.org:act:B66F9CEA-F03D-45CB-80FF-67E66D55A9EF ; order: Diptera ; family: Tabanidae ; genus: Tabanus ; specificEpithet: rondoniensis; taxonRank: species; scientificNameAuthorship: Henriques , Krolow , Zamarchi and Camargo ; Location : country: Brazil; stateProvince: Rondônia; municipality: Monte Negro; locality: LHC35- Sebastiao ; locationRemarks: transliteration: " BRAZIL, Rondônia, Monte Negro, LHC35- Sebastião, 10°09'47"S, 63°19'27"W, vii.2018, NZI trap, T. Zamarchi leg."; verbatimCoordinates: 10°09'47"S, 63°19'27"W; decimalLatitude: -10.163055555556; decimalLongitude: -63.324166666667; georeferenceProtocol: Google Earth; Identification: identifiedBy: AL Henriques, TK Krolow, TBO Zamarchi and LMA Camargo; Event: samplingProtocol: NZI trap; eventDate: 2018-07; Record Level: type : Holotype; institutionCode: INPA Type status: Paratype. Occurrence : recordedBy: T. Zamarchi; individualCount: 1; sex: female; Taxon : scientificNameID: urn:lsid:zoobank.org:act:B66F9CEA-F03D-45CB-80FF-67E66D55A9EF ; order: Diptera ; family: Tabanidae ; genus: Tabanus ; specificEpithet: rondoniensis; taxonRank: species; scientificNameAuthorship: Henriques , Krolow , Zamarchi and Camargo ; Location : country: Brazil; stateProvince: Rondônia; municipality: Monte Negro; locality: P1- Argeu ; locationRemarks: transliteration: " BRAZIL, Rondônia, Monte Negro, P1-Argeu, 10°28'27"S, 63°15'18"W, viii.2019, biting horse (one female)"; verbatimCoordinates: 10°28'27"S, 63°15'18"W; decimalLatitude: -10.474167; decimalLongitude: -63.255; georeferenceProtocol: Google Earth; Identification: identifiedBy: AL Henriques, TK Krolow, TBO Zamarchi and LMA Camargo; Event: samplingProtocol: biting horse; eventDate: 2019-08; Record Level: type : Paratype; institutionCode: INPA Type status: Paratype. Occurrence : recordedBy: T. Zamarchi; individualCount: 1; sex: female; Taxon : scientificNameID: urn:lsid:zoobank.org:act:B66F9CEA-F03D-45CB-80FF-67E66D55A9EF ; order: Diptera ; family: Tabanidae ; genus: Tabanus ; specificEpithet: rondoniensis; taxonRank: species; scientificNameAuthorship: Henriques , Krolow , Zamarchi and Camargo ; Location : country: Brazil; stateProvince: Rondônia; municipality: Monte Negro; locality: P5- Necivaldo ; locationRemarks: transliteration: " BRAZIL, Rondônia, Monte Negro, P5-Necivaldo, 10°06'1"S, 63°16'56"W, 2019-07, malaise in the forest (one female)"; verbatimCoordinates: 10°06'21"S, 63°16'56"W; decimalLatitude: -10.105833333333; decimalLongitude: -63.282222222222; georeferenceProtocol: Google Earth; Identification: identifiedBy: AL Henriques, TK Krolow, TBO Zamarchi and LMA Camargo; Event: samplingProtocol: malaise in the forest; eventDate: viii.2019; Record Level: type : Paratype; institutionCode: INPA Type status: Paratype. Occurrence : recordedBy: D. Mendes, F.F. Xavier, A. Agudelo, J.A. Rafael; individualCount: 2; sex: female; Taxon : scientificNameID: urn:lsid:zoobank.org:act:B66F9CEA-F03D-45CB-80FF-67E66D55A9EF ; order: Diptera ; family: Tabanidae ; genus: Tabanus ; specificEpithet: rondoniensis; taxonRank: species; scientificNameAuthorship: Henriques , Krolow , Zamarchi and Camargo ; Location : country: Brazil; stateProvince: Rondônia; municipality: Porto Velho; locality: ESEC Tres Irmaos ; locationRemarks: transliteration: " BRAZIL, Rondônia, Porto Velho, ESEC Três Irmãos, 09°00'09"S, 64°32'40"W, 2017-08, malaise trap, D. Mendes, F.F. Xavier, A. Agudelo, J.A. Rafael leg. (two females)"; verbatimCoordinates: 09°00′09″S; 64°32′40″W; decimalLatitude: -09.0025; decimalLongitude: -64.544444444444; georeferenceProtocol: Google Earth; Identification: identifiedBy: AL Henriques, TK Krolow, TBO Zamarchi and LMA Camargo; Event: samplingProtocol: malaise trap; eventDate: viii.2017; Record Level: type : Paratypes; institutionCode: INPA

Description

Holotype female. Length: 15.2 mm. Wing: 13 mm.

Head. Eyes unicolorous, brown in life, glabrous. Frons moderately narrow (frontal index 5.7), somewhat divergent above (divergence index 1.5) (Fig. 1 C). Frontal callus brown; ocellar triangle at vertex vestigial. Subcallus, parafacial, clypeus and gena with brownish-grey pruinescence; hairs of gena yellowish-brown. Antenna brownish, darker towards the apex (Fig. 1 D-E). Scape inflated and produced dorsally, cap-like, wider than first flagellomere (basal plate). Palpus yellowish-brown, first segment with long yellowish hairs, second segment predominantly with yellowish hairs and some black. Prementum dark brown. Labellum black, membranous.

Thorax. Scutum brown with mixed yellowish and black hairs. Notopleuron concolorous with scutum, covered with black hairs, white hairs dorsally. Prescutellum black, surrounded by white hairs that are also distributed throughout the brown scutellum. Pleuron and coxae brown with grey pruinescence and pale hairs; dark hairs in the upper half of the anepisternum. Legs brown predominantly with yellowish hairs; black hairs in the apical half of fore tibia, apex of mid- and hind tibia and all tarsi. Wing with normal venation, a strong angle at fork of R4+5; faintly smoky with brownish shades along of the veins in the anterior half. Pterostigma weakly brown tinted.

Abdomen. Tergites brown with black hairs, except for large white median connected triangles of hairs and pruinescence on tergites 2-5, on tergite 6 a median pale line. Sides of tergites paler with yellowish hairs. Sternites brown with yellowish hairs, except sternite 7, black haired.

Male

Not collected (unknown).

Variations

Length 15 - 17 mm. Frontal index 5.5 - 6. Divergence index 1.5 - 1.8. Although many hairs are absent, variations in the colour pattern were not diagnosed.

Diagnosis

A brownish medium-sized species with unpatterned eyes, a well marked black pilose prescutellar spot framed and margined with white hairs (Fig. 1 A-B). Antennal scape inflated, wider than first flagellomere. Abdomen with a median row of large pale pilose and pruinose connected triangles on tergites 2-5, tergite 6 reduced to a narrow stripe.

Etymology

The specific name refers to the State of Brazil where the specimens was recorded, Rondônia.

Distribution

Brazil: Rondônia.

Biology

Haematophagy was confirmed through the capture of a female performing a blood meal in the horse.

Figures

Figure 1. Tabanus rondoniensis sp. n. holotype female. A habitus, dorsal view; B habitus, lateral view; C head, frontal view; D head, lateral view; E left antenna.