Macrostomus polleti, Rafael & Vasconcelos, 2024
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publication ID |
https://doi.org/ 10.11646/zootaxa.5433.3.9 |
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publication LSID |
lsid:zoobank.org:pub:3ED6D283-A033-485F-9632-FC95778F3A44 |
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DOI |
https://doi.org/10.5281/zenodo.10954534 |
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persistent identifier |
https://treatment.plazi.org/id/784CFBA7-3F32-4DB4-A44B-82ACDC440F70 |
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taxon LSID |
lsid:zoobank.org:act:784CFBA7-3F32-4DB4-A44B-82ACDC440F70 |
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treatment provided by |
Plazi |
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scientific name |
Macrostomus polleti |
| status |
sp. nov. |
Macrostomus polleti sp. nov.
( Figs 3A–I View FIGURE 3 , 4A–F View FIGURE 4 , 5 View FIGURE 5 )
urn:lsid:zoobank.org:act:784CFBA7-3F32-4DB4-A44B-82ACDC440F70
Diagnosis. Yellow to brown, except postcranium black; male fore tarsomere 1 not thickened, whitish; wing brown, distinctly hyaline spotted; cell r 1 with small hyaline spot at level of cell dm spot. Abdomen darker with blue reflection; tergite 8 rounded distally, without distal projection. Posterior cercus thin, upward directed. Hypandrium thin distally, posterior margin with a distinct median acute process. Female: Mid femur, hind femur, and hind tibia with dorsal and ventral pennate scales; sternite 8 ( Fig. 4D, E View FIGURE 4 ) with distal half uniformly narrowed, with no median sinus laterally. Genital fork thin, elongated, Y-shaped, with lateral arms slightly shorter than basal arm.
Description. Holotype male. Body length 4.8 mm; wing length 4.5 mm. Male ( Fig. 3A View FIGURE 3 ) identical to previous species, except by frons dichoptic as wide as anterior ocellus width, wider than face; halter with knob whitish; fore tarsomere 1 not thickened, somewhat whitish. Hind tibia with 6 longer dorsal setae. Wing ( Fig. 3B View FIGURE 3 ) distinctly spotted; cell r 1 with small hyaline spot at level of cell dm spot ( Figs 3B View FIGURE 3 , 4B View FIGURE 4 ). Abdomen shiny black with blue reflection. Tergite 8 ( Fig. 3C–D View FIGURE 3 ) rounded distally. Terminalia ( Fig. 3E–H View FIGURE 3 ) concolorous with abdomen. Epandrium with anterodorsal and posterodorsal lobe same height; anterior cercus upward directed, with narrow median cercal bridge ( Fig. 3E, F View FIGURE 3 ); posterior cercus slender, elongated, upward directed ( Fig. 3E, G View FIGURE 3 ). Hypandrium ( Fig. 3H View FIGURE 3 ) with small somewhat translucent spot basally, distal half of hypandrium thin, posterior margin with distinct median acute process ( Fig. 3H View FIGURE 3 ). Ejaculatory apodeme tetralamellar ( Fig. 3H View FIGURE 3 ). Phallus slender ( Fig. 3H View FIGURE 3 ).
Female. Habitus ( Fig. 4A View FIGURE 4 ). Body 4.7 mm; wing 4.6 mm. As in males, except mid femur, hind femur, and hind tibia with dorsal and ventral pennate scales; wing slightly wider than in male ( Fig. 4B View FIGURE 4 ). Abdomen entirely shiny black, including terminalia less shining than in male and sparsely gray pruinose. Terminalia ( Fig. 4C–F View FIGURE 4 ). Tergite 8 ( Fig. 4C View FIGURE 4 ) slightly concave basally, deeply concave apically. Sternite 8 ( Fig. 4D, E View FIGURE 4 ) with distal half uniformly narrowed, with no median sinus laterally. Genital fork ( Fig. 4D View FIGURE 4 ) Y-shaped, with lateral arms as long as basal arm and somewhat straight. Spermatheca ( Fig. 4F View FIGURE 4 ) spherical.
Variations. Male body varying from 4.5–4.8 mm; 3–4 dorsocentral setae; 3–4 antepronotals; 2–5 proepisternals; Amapá specimens with thorax yellow-brown; Mitaraka specimens with thorax brown, halter with knob whitish and terminalia slightly black.
Geographical records. Brazil (Amapá, Serra do Navio, Oyapock); French Guiana (Mitaraka).
Material examined. HOLOTYPE ♂, labelled: “BRASIL, Terr. [Território] Amapá, Serra do Navio [0°53′N 52°0′W], 14.x.1957, J. Lane leg,”, “Holotype ♂, Macrostomus polleti ”, “ MZUSP ” ( Fig. 3I View FIGURE 3 ) GoogleMaps . PARATYPES: Brazil: Same data as holotype, except: 26.ix.1957 (1♂ MZUSP); Amapá, Oiapoque , BR 156 GoogleMaps , km 25, 3°39′35″N 51°46′17″W, iii–vii.2020, Malaise, floresta, J.A. Rafael, S.P. Lima & F.F. Xavier F° (1♂ INPA) GoogleMaps . French Guiana: Mitaraka, 02°13′59.8″N 54°27′46.5″W, 471 m, partially opened areas on savanna, roche 2, 13–20.viii.2015, MT GoogleMaps [Malaise trap] (6m), leg. Pierre-Henri Dalens –sample code: Mitaraka /230 (1♂, 1♀ MNHN) .
Holotype condition. Mounted, in good condition, not dissected.
Etymology. The specific name is in honor of Dr. Marc Pollet, coordinator of the French Guiana project in Mitaraka.
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.
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