Argentinomyia pollinosa
Creators: name: Montoya, Augusto L.
name: Wolff, Marta
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Argentinomyia
Argentinomyia pollinosa

description: Argentinomyia pollinosa (Hull, 1942)
(Figs 63, 64 and 93B)
Rhysops pollinosa Hull, 1942: 10. Type locality: Brazil. S„o Paulo, Batea, xi.1940, J. Lane coll. HOLOTYPE Female CNC. Refs.: Fluke, 1945: 26 (Fig. 11, head, lateral view, female); 1957: 279 (Figs 113–114, male genitalia); Marinoni & Thompson, 2004: 567
Rhysops pollinosa. Fluke, 1945: 26
Rhysops pollinosa. Fluke, 1957: 266
Rhysops pollinosus. Thompson, 1976: 44 Rhysops pollinosa. Cooper & Cumming, 1993: 70
Argentinomyia pollinosa. Marinoni & Thompson, 2004: 567
Argentinomyia pollinosus. Morales & K̂hler, 2008: 44
Type material. HOLOTYPE. Adult female, BRAZIL. S„o Paulo, 23°32’56.34”S, 46°38’19.98”W, 801 m, 1.xi.1940, J. Lane (Hull Collection)
Length (n= 3): Body, 8.5–9.0 mm; Wings, 6.7–7.5 mm.
Diagnosis. Female frontal triangle with two rounded brown pollinose maculae; 3 rd to 4 th terga with triangular maculae; metatibia yellow on basal 1/4; metafemur yellow with a black ring or smudge on apical margin; surstylus in lateral view with dorsal and ventral margins approximately of the same width in the whole length; hypandrium in ventral view expanded laterally towards the apex.
Redescription. MALE. Head (Fig. 63A): Frontal triangle and vertex subopaque black, the former broadly divided transversely by yellowish-brown pollen. Face pale greyish-yellow, almost white pubescent and with a similar pile. Face with a broad, shining, brownish-black middle vitta and a submedial, incomplete vitta partly bisecting the facial pubescence. Face with four transverse grooves; the pile of frontal triangle and vertex black. Frontal triangle black, brownish pollinose, pile black. Gena bluish-black, antennae yellowish. Ocellar triangle black, with black pile. Occiput pile fine, short and yellow. Antennae yellowish, short, ratio 1.1:1.0:2.2, scape and pedicel little longer than basoflagellomere; darker toward the end and dorsal on basoflagellomere; arista yellow at base and dark on apical third, pilose. Thorax (Figs 63B–C, 64D): Aeneous, mesonotum shining bright brassy-black with obscure, brownish pollinose vittae; with a pair of moderately separated vitta of light brownish yellow pollen, yellow pilose. Pleura grey brownish to rusty-colored pollen, yellow pilose. Scutellum with a pair of slender, pale bristles; fringe short and yellow. Wing (Fig. 63C): Hyaline, slightly tinged with brown near the apex, stigma dark yellowish-brown; microtrichose, except cell c bare on basal 1/4, cell bm bare on basal 3/4 and cell r bare on basal 4/5, cell cua bare on anterior 1/3; calypter wholly white-yellowish; plumula white, halter yellow, capitulum slightly brown yellow. Legs (Fig. 63C): Everywhere light orange-brown; metafemur yellow except the apical 1/5 narrowly brown; basal three protarsus brown, the apical one yellow-orange; another tarsus yellow; yellow to orange pilose. Abdomen (Figs 63B): Elongate, 1 st tergum shining black, 2 nd shining blue-black with an obscure, diffuse, brownish-orange, elongate, sublateral maculae along the outer portion of tergum; widely separated and equidistant from base and apex of 2 nd tergum; on 3 rd tergum with quite similar, slightly smaller maculae that begin at the base; on 4 th tergum with smaller and similar basal maculae; sterna yellowish; male genitalia: surstylus in lateral view (Fig. 64A) with dorsal margin slightly concave and ventral margin slightly convex, shorter than broad; hypandrium in ventral view (Fig. 64C) narrowed laterally towards the apex; aedeagal lobe in ventral view (Fig. 64C) with apex acute.
FEMALE (Figs 63D–F). Similar to male except for usual sexual dimorphism and differing in Frontal triangle with a broad, brownish pollinose crossband occupying the frontal depression; between this band and the ocelli a somewhat narrow.Abdomen with a broad lateral macula, reaching 1/4 of segment length; on 3 rd to 4 th terga, there are a pair of lineal maculae, apically rounded and separated for the edge, reaching the anterior 2/3 of the segment length.
Taxonomic notes. Argentinomyia pollinosa is similar in appearance to A. maculata differing from them by the female frontal triangle with a complete transverse black fascia (Figs 63D, F); metafemora yellow except the apical 1/5 narrowly brown; metatibiae yellow on basal 1/4 (Figs 63A, C, D, F); 3 rd to 4 th terga with quadrate maculae (Figs 63B, E). In A. maculata the female frontal triangle with two rounded brown pollinose maculae (Figs 49D, F); metafemora yellow with a black ring or smudge on apical margin; metatibiae mostly yellow (Figs 49A, C, D, F); 3 rd to 4 th terga with triangular maculae (Figs 49B, E) (see “diagnosis” under each species or key).
Geographical range. Argentinomyia pollinosa (n= 37) is known from Argentina (Tucumán) in Serra do Mar, Serra da Fartura and Serra de Mantiqueira in Brazil (Minas Gerais, Paraná: Ponta Grossa, Guarapuava, Refugio de Vida Silvestre dos Campos de Palmas, S „o José dos Pinhais; Santa Catarina, S„o Paulo) and Eastern slope of Cordillera de Mérida in Venezuela * (Aragua) (Fig. 93B). The species is present at low and middle altitudes (400– 2150 m) in the following biogeographical domains and provinces: Northern Andes: Venezuelan (500 m); Paraná (400–2150 m): Araucaria Forest (895–1274 m), Atlantic Forest (801–2150 m), Paraná Forest (400 m); Chacoan: Chaco (915–1430 m).
Non-type material examined. ARGENTINA. Tucumán, Burruyacu, Villa Padre Monti, -26.488779, - 64.971602, 915 m, 5.ii.1948, R. A. Golbach (5♁, 5♀, WIRC); Villa Nougués, -26.850000, -65.383331, 1430 m, i.1931, R. K. (3♁, WIRC). BRAZIL. Santa Catarina, Nova Teutonia, -27.183334, -52.383334, 300-500 m, 7.i.1960, F. Plaumann (6♀, USNM ENT 01406583; 01406575; 01406444; 01406570; 01406439; 01406420); Minas Gerais, 16 Km a SE de Itamonte Pq Nac Itamonte, -22,368504, -44,778372, 2150 m, 26.v.2011, M. G. Hermes (3♀ CEUFLA); Paraná, Ponta Grossa, Pq Estadual de Vila Velha-IAPAR, -25,246336, -50,02104, 895 m, 12.vi.1999, N. G. Ganho and R. C. Marinoni (1♁, 1♀, DZUP 42302, 42088);- 25,1, -50,1, 969 m, 26.i.1987, PROFAUPAR (1♀, DZUP 43089, Det. L. Marinoni); Guarapuava, Estância Santa Clara, -25,3833, -51,45, 1098 m, 10.vi.1986, PROFAUPAR (1♀, DZUP 43087, Det. L. Marinoni); Refugio de vida silvestre dos campos de Palmas, -26,533807, -51,599362, 1200 m, A. Couto (4♀, DZUP); São José dos Pinhais, BR 277- Km. 54 (TELEPAR) -25,5667, -49,0167, 1050 m, 25.vii.1988, PROFAUPAR (4♁, 6♀, DZUP 43147, 43095, 43096, 43148, 43155, 43151, 43092, Det L. Marinoni); 22.xii.1986 (1♀, DZUP 43093); Santa Catarina, Nova Teutonia, -27,183334, -52,383334, 400 m, 29.vii.1938, F. Plaumann (3♁, 2♀, BMNH). VENEZUELA. Aragua, Rancho Grande, 10.066783, -67.543343, 500 m, 8-11.vi.1976, A.S. Menke and D. Vincent (1♀, USNM ENT 01443779).
description: Published as part of Montoya, Augusto L. & Wolff, Marta, 2023, Taxonomic revision of the Neotropical genus Argentinomyia Lynch-Arribálzaga, 1891 (Diptera: Syrphidae), with description of 16 new species, pp. 1-157 in Zootaxa 5234 (1) on pages 106-108, DOI: 10.11646/zootaxa.5234.1.1, http://zenodo.org/record/7609993