Flintiella triaena Gama Neto, Ribeiro & Passos 2020

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Main Authors: Cavalcante-Silva, Amanda, Santos, Allan Paulo Moreira, Calor, Adolfo Ricardo
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Published: Zenodo 2025
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author Cavalcante-Silva, Amanda
Santos, Allan Paulo Moreira
Calor, Adolfo Ricardo
author_facet Cavalcante-Silva, Amanda
Santos, Allan Paulo Moreira
Calor, Adolfo Ricardo
contents <p><b><i>Flintiella triaena</i> Gama Neto, Ribeiro & Passos 2020</b></p><p>(Figures 5A–5G)</p><p><b>Gama Neto, Ribeiro & Passos 2020</b> [type locality: Pará, São Geraldo do Araguaia Municipality, Serra das Andorinhas, Santa Cruz stream, 06°13’31.1”S, 48°26’28.1”W, el. 124 m, 18–31.x.2019, INPA, male].</p><p><b>Material examined.</b> <b>HOLOTYPE. BRAZIL: Pará:</b> São Geraldo do Araguaia Municipality, Serra das Andorinhas, Santa Cruz stream, Luís de Queiroz (modified) light trap, 06°13’31.1”S, 48°26’28.1”W, el. 124 m, 18–31.x.2019, J.M.F Ribeiro leg., 1 male (INPA). <b>Mato Grosso</b>: P.N. Chapada dos Guimarães, Poço das Antas, 15°18’50”S, 55°51’10”W, el. 289 m, 10.ii.2015, D.M. Takiya & A.P.M. Santos leg., 1 male (DZRJ 7651); same river, coordinates, elevation, and date except 2 males (DZRJ 7656).</p><p><b>Taxonomic comments.</b> <i>Flintiella triaena</i> was described based on a unique specimen. The original description indicated for the genitalia that the inferior appendages were “spread posterolaterad, possibly as a result of KOH treatment” (Gama Neto <i>et al</i>. 2020). The authors also mentioned the unusual “trident-like” subgenital plate, allowing the identification of the species. However, based on our reexamination of the holotype and comparison with two additional specimens from the state of Mato Grosso, we confirm that the inferior appendages and the arms of the subgenital plate of the holotype appear to have been separated during the clearing process. In this way, <i>Flintiella triaena</i> has the typical male genitalia as other species in this genus with the subgenital plate divided into three contiguous arms as long as the inferior appendages (Figs 5D, 5E). Based on male genitalia (Figs 5C–5 G and Gama Neto <i>et al</i>. 2020, figs 3A–3E), <i>F</i>. <i>triaena</i> resembles <i>F. carajas</i>, particularly in the shape of the inferior appendages and the subgenital plate. However, <i>F. triaena</i> can be easily distinguished by: (1) sternite VII without an apicomesal process (Figs 5D, 5E and Gama Neto <i>et al</i>. 2020, fig. 3A); (2) segment IX has a mesal U–shaped notch posteroventrally in ventral view (Fig. 5D and Gama Neto <i>et al</i>. 2020, fig. 3B, but broader in the latter illustration); (3) each inferior appendage has a short subapical projection in the ventromesal margin (Fig. 5D and Gama Neto <i>et al</i>. 2020, fig. 3B); (4) the subgenital plate is divided into three contiguous arms as long as inferior appendages (Fig. 5D and Gama Neto <i>et al</i>. 2020, fig. 3B, but divergent in the latter illustration, apparently as a result of the clearing process); and (5) the phallus is deeply divided distally, with a mesoventral process and the ejaculatory duct protruding from its apex (Figs 5F, 5 G and Gama Neto <i>et al</i>. 2020, figs 3D, 3E). Here, we also describe and provide the first illustration of the wing venation of the male of <i>F. triaena</i>. Fore- and hind wings with main veins present. Forewings, in alcohol, uniformly brown, with light brown setae; each with Sc incomplete, apical forks 1, 2, and 3 present (Fig. 5A). Hind wings narrow; Sc incomplete; apical forks 1 and 2 present (Fig. 5B); edges with long setal fringes.</p><p><b>Distribution.</b> Brazil (PA and MT [new record]).</p>
format Recurso digital
id zenodo_https___doi_org_10_5281_zenodo_15822989
institution Zenodo
language
publishDate 2025
publisher Zenodo
record_format zenodo
spellingShingle Flintiella triaena Gama Neto, Ribeiro & Passos 2020
Cavalcante-Silva, Amanda
Santos, Allan Paulo Moreira
Calor, Adolfo Ricardo
Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydroptilidae
Flintiella
Flintiella triaena
<p><b><i>Flintiella triaena</i> Gama Neto, Ribeiro & Passos 2020</b></p><p>(Figures 5A–5G)</p><p><b>Gama Neto, Ribeiro & Passos 2020</b> [type locality: Pará, São Geraldo do Araguaia Municipality, Serra das Andorinhas, Santa Cruz stream, 06°13’31.1”S, 48°26’28.1”W, el. 124 m, 18–31.x.2019, INPA, male].</p><p><b>Material examined.</b> <b>HOLOTYPE. BRAZIL: Pará:</b> São Geraldo do Araguaia Municipality, Serra das Andorinhas, Santa Cruz stream, Luís de Queiroz (modified) light trap, 06°13’31.1”S, 48°26’28.1”W, el. 124 m, 18–31.x.2019, J.M.F Ribeiro leg., 1 male (INPA). <b>Mato Grosso</b>: P.N. Chapada dos Guimarães, Poço das Antas, 15°18’50”S, 55°51’10”W, el. 289 m, 10.ii.2015, D.M. Takiya & A.P.M. Santos leg., 1 male (DZRJ 7651); same river, coordinates, elevation, and date except 2 males (DZRJ 7656).</p><p><b>Taxonomic comments.</b> <i>Flintiella triaena</i> was described based on a unique specimen. The original description indicated for the genitalia that the inferior appendages were “spread posterolaterad, possibly as a result of KOH treatment” (Gama Neto <i>et al</i>. 2020). The authors also mentioned the unusual “trident-like” subgenital plate, allowing the identification of the species. However, based on our reexamination of the holotype and comparison with two additional specimens from the state of Mato Grosso, we confirm that the inferior appendages and the arms of the subgenital plate of the holotype appear to have been separated during the clearing process. In this way, <i>Flintiella triaena</i> has the typical male genitalia as other species in this genus with the subgenital plate divided into three contiguous arms as long as the inferior appendages (Figs 5D, 5E). Based on male genitalia (Figs 5C–5 G and Gama Neto <i>et al</i>. 2020, figs 3A–3E), <i>F</i>. <i>triaena</i> resembles <i>F. carajas</i>, particularly in the shape of the inferior appendages and the subgenital plate. However, <i>F. triaena</i> can be easily distinguished by: (1) sternite VII without an apicomesal process (Figs 5D, 5E and Gama Neto <i>et al</i>. 2020, fig. 3A); (2) segment IX has a mesal U–shaped notch posteroventrally in ventral view (Fig. 5D and Gama Neto <i>et al</i>. 2020, fig. 3B, but broader in the latter illustration); (3) each inferior appendage has a short subapical projection in the ventromesal margin (Fig. 5D and Gama Neto <i>et al</i>. 2020, fig. 3B); (4) the subgenital plate is divided into three contiguous arms as long as inferior appendages (Fig. 5D and Gama Neto <i>et al</i>. 2020, fig. 3B, but divergent in the latter illustration, apparently as a result of the clearing process); and (5) the phallus is deeply divided distally, with a mesoventral process and the ejaculatory duct protruding from its apex (Figs 5F, 5 G and Gama Neto <i>et al</i>. 2020, figs 3D, 3E). Here, we also describe and provide the first illustration of the wing venation of the male of <i>F. triaena</i>. Fore- and hind wings with main veins present. Forewings, in alcohol, uniformly brown, with light brown setae; each with Sc incomplete, apical forks 1, 2, and 3 present (Fig. 5A). Hind wings narrow; Sc incomplete; apical forks 1 and 2 present (Fig. 5B); edges with long setal fringes.</p><p><b>Distribution.</b> Brazil (PA and MT [new record]).</p>
title Flintiella triaena Gama Neto, Ribeiro & Passos 2020
topic Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydroptilidae
Flintiella
Flintiella triaena
url https://doi.org/10.5281/zenodo.15822989