Tabanus guyanensis Macquart 1846
Creators: name: Dutra, Maria Carolina Pimenta
name: Amorim, Dalton De Souza
name: Carmo, Daniel Dias Dornelas Do
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tabanidae
Tabanus
Tabanus guyanensis

description: Tabanus guyanensis Macquart
(Figs 29 A–D, 30 A–D, 31)
Tabanus guyanensis Macquart, 1846: 169 (1846: 41), pl. 4, fig. 9 (list of species); Walker, 1854: 211 (list of species); Kertész, 1908: 248 (cat.); Fairchild, 1956: 18 (syn.); Patrick & Hays, 1968 (list of species): 2020; Fairchild, 1966: 447 (list of species), 1970: 847 (list of species), 1971: 94 (cat.); Carrasco, 1972 (list of species): 322; Moucha, 1976: 112 (cat.); Fairchild, 1984: 23, fig. 18, map 1 (rev.); Fairchild & Burger, 1994: 138 (cat.); Gorayeb, 1993: 256, 259, table 1, 5 (seasonality); Barros et al., 2003: 10,11,13, table 1,2; Barros & Foil, 2007: 382, table 1 (seasonality); Buestán et al., 2007: 168 (list of species); Cárdenas et al., 2009: 18 (list of species); Coscarón & Papavero, 2009b: 131 (cat); Krolow & Henriques, 2017: 4 (list of species); Krolow et al., 2017: 105 (list of species); Koller et al., 2019: 1393–1395, table 1,2 (list of species); Henriques & Krolow, 2020: 440 (list of species); Riccardi et al., 2022: 25 (list of species); Henriques et al., 2023: Supplemental table (Amazon biogeography).
Tabanus flavibarbis Macquart, 1846: 169 (1846: 41) (list of species); Walker, 1854: 204 (list of species); Hunter, 1901: 140 (cat.); Kertész, 1908: 242 (cat.); Kröber, 1929b: 251, fig. 3 (list of species), 1930b: 81 (Small gen. Tabanini; Tabanus (Lophotabanus )), 1934: 295 (cat.; Tabanus (Lophotabanus )); Barretto, 1957: 87 (list of species; Bellardia).
Tabanus rubrinotatus Bigot, 1892: 676 (list of species); Kertész, 1908: 275 (cat.); Fairchild, 1956: 27 (syn.).
Tabanus guyanens Hunter, 1901: 141, (cat., error)
Tabanus multimaculatus Lutz, 1909: 30 (list of species, nomen nudum), 1911: 35 (list of species, nomen nudum); Fairchild, 1961b: 290 (list of species).
Tabanus guayanensis Fairchild & León, 1986: 118, (list of species, error).
Distribution: French Guiana, eastern Ecuador, eastern Peru, Brazil (Amapá, Amazonas, Pará, Rondônia, Mato Grosso, and Mato Grosso do Sul), and eastern Bolivia.
Type-locality: “ French Guiana ”.
Diagnosis: Large specimens (16.4–20.3 mm). Frons narrow (FI: 4.0–5.0), parallel, or slightly convergent or divergent at the base (DI: 0.93–1.1). Palpus equal to or larger than half the length of the stylets. Wing brownish tinged at the base, costal cell orange, strongly infuscated calypters. Scutum reddish-brown covered in gray pruinosity with two dark dorsolateral integumental stripes. Postalar wall with an evident setulose white spot. Abdomen reddish-brown with dorsomedial (tergite 1 or 2 to 4) triangles and dorsolateral stripes (tergite 2 to 6) of light setulae when well-preserved.
Remarks: Resembling T. comosus (see T. comosus). Integument and setulae of pleura and legs ranges from brown to black. The male is similar to the female, except for the reduced mouthparts, slender antenna lacking the ventral angle found in females, holoptic eyes with the facets well-demarcated, and the largest ones occupy the upper half of the eyes and are lighter than the smaller. The distribution of this species largely corresponds to the northwestern South America pattern of Amorim & Pires (1996), with elements east and west the opening of the Amazon River at the east, but also including elements in Guyana Shield and in the southwest Amazon basin. In other groups, this distribution pattern applies to more than one species that, as a clade, corresponds to the northwestern South America track.
Examined material: Ter. Amapá [BRASIL], Mazagão / Jari ao V. Nova, 1968, Damasceno [1♀] [MZUSP]; Fazenda Taperinha, Santarém, PA [Pará], BRASIL, x–xi. 1970, Exp. Perm.Amaz. [10♀] [MZUSP]; Bôca do Guajará, Mun. Pôrto de Moz, P.A [Pará], BRASIL, x.1970, Exp. Perm. Amaz. [one female photographed] [2♀] [MZUSP]; Belém, Pará [BRASIL], Damasceno [1♀] [MZUSP]; Maués, Am [Amazonas], Worontzow [2♀] [MZUSP]; BRASIL, Amazonas, C. UNIV - Manaus, 10–11 1979, J.A Rafael [1♀] [INPA]; BRASIL, Amazonas, Carauari, 5°05’31” S 67°10’03” W, vii.2005, Suspensa na praia [canopy at the beach] / A. Henriques & Xavier-Filho leg. [3♀] [INPA]; BRA [BRASIL], Amazonas, Manacapuru, Mundo Azul, Sítio Agroinclusivo, -3.279958 -60.546108, 10–14. viii.2020, Malaise Mahlmann, Nogueira & Ribeiro Leg. [1♀] [INPA]; BRASIL, Benjamin Constant [Amazonas], Rio Javari, Alto do Amazonas, Dirings / Jun [vi].1962 [behind the label] / 545 [1♀] [MZUSP]; BRASIL, Amazonas, Benjamin Constant, Campus UFAM, 04°21’42”S 70°02’04”W / iv.2004, Luz Mista, F.F. Xavier Leg [1♀] [INPA]; BRASIL, Amazonas, BR 319, Km 350, 5°12’56,4”S 61°50’22,6”W, 30.vii. 07–2.viii.2007, H. Gasca Leg [1♀] [INPA]; BRA [BRASIL], AM [Amazonas], Lago Ayapuá, Beruri, viii. 2007, 4°27’30” S 62°11’56” W, J.G Rabello leg. [1♀] [INPA]; Boca L. Beruri, Rio Purus, Am [Amazonas, Brasil], 11.xi.67, 670746 [1♀] [MZUSP]; BRASIL, Amazonas, Costa do Urá, Rio Solimões, 23.x.83, V.M da Silva [2♀] [INPA]; BRASIL, AM [Amazonas], Fonte Boa, Estr. Mamopina, 023227S - 660408W, 23. IX.2005, arm. luz, J.A. Rafael & F.F. Xavier Fº [Photographed] [1♂] [INPA].
description: Published as part of Dutra, Maria Carolina Pimenta, Amorim, Dalton De Souza & Carmo, Daniel Dias Dornelas Do, 2025, Taxonomic revision of the Tabanus nebulosus species group (Diptera: Tabanidae), pp. 1-48 in Zootaxa 5588 (1) on pages 16-18, DOI: 10.11646/zootaxa.5588.1.1, http://zenodo.org/record/14895899