A new species of Ulmeritoides from Brazil (Ephemeroptera: Leptophlebiidae)

The leptophlebiid mayfly genus Ulmeritoides is composed of nine species, three of which have been recorded in Brazil: U. patagianus, U. uruguayensis, and U. misionensis. In the present paper, a new species of this genus, Ulmeritoides oepa sp.nov., is described and illustrated based on fifteen larvae...

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Autores principales:	Nascimento Lopes, María José, Ribeiro Da-Silva, Elidiomar, Py-Daniel, Victor
Formato:	Online
Idioma:	eng
Publicado:	Universidad de Costa Rica 2003
Acceso en línea:	https://revistas.ucr.ac.cr/index.php/rbt/article/view/15651

id	RBT15651
record_format	ojs
spelling	RBT156512022-05-25T21:49:24Z A new species of Ulmeritoides from Brazil (Ephemeroptera: Leptophlebiidae) A new species of Ulmeritoides from Brazil (Ephemeroptera: Leptophlebiidae) Nascimento Lopes, María José Ribeiro Da-Silva, Elidiomar Py-Daniel, Victor Insecta Ephemeroptera Leptophlebiidae Atalophlebiinae Ulmeritoides taxonomy Brazil The leptophlebiid mayfly genus Ulmeritoides is composed of nine species, three of which have been recorded in Brazil: U. patagianus, U. uruguayensis, and U. misionensis. In the present paper, a new species of this genus, Ulmeritoides oepa sp.nov., is described and illustrated based on fifteen larvae collected in Uraricoera River, state of Roraima, northern Brazil. The species was compared to U. misionensis, U. tifferae, and U. guanacaste, the other species of Ulmeritoides known from the larval stage. U. oepa sp.nov. can be distinguished from these species by the following combination of characteristics: 1) medial denticle on anteromedian emargination of labrum much larger than others; 2) anterior tibiae slightly stained black toward the apex; 3) medial femora with few dorsal spines, similar to short thick needles; 4) hind femora with numerous dorsal spines, similar to short thick needles; 5) medial femora with no medial black markings, apical brown markings. The new species seems to be more closely related to U. misionensis, another species in which the anteromedian emargination of the labrum has a median denticle much larger than the others. The studied specimens were deposited in the Invertebrates Collection of the Amazonian Research National Institute, Manaus, state of Amazonas, Brazil, and in the Entomological Collection of the Department of Zoology, Federal University of Rio Janeiro, Rio de Janeiro, state of Rio de Janeiro, Brazil. The leptophlebiid mayfly genus Ulmeritoides is composed of nine species, three of which have been recorded in Brazil: U. patagianus, U. uruguayensis, and U. misionensis. In the present paper, a new species of this genus, Ulmeritoides oepa sp.nov., is described and illustrated based on fifteen larvae collected in Uraricoera River, state of Roraima, northern Brazil. The species was compared to U. misionensis, U. tifferae, and U. guanacaste, the other species of Ulmeritoides known from the larval stage. U. oepa sp.nov. can be distinguished from these species by the following combination of characteristics: 1) medial denticle on anteromedian emargination of labrum much larger than others; 2) anterior tibiae slightly stained black toward the apex; 3) medial femora with few dorsal spines, similar to short thick needles; 4) hind femora with numerous dorsal spines, similar to short thick needles; 5) medial femora with no medial black markings, apical brown markings. The new species seems to be more closely related to U. misionensis, another species in which the anteromedian emargination of the labrum has a median denticle much larger than the others. The studied specimens were deposited in the Invertebrates Collection of the Amazonian Research National Institute, Manaus, state of Amazonas, Brazil, and in the Entomological Collection of the Department of Zoology, Federal University of Rio Janeiro, Rio de Janeiro, state of Rio de Janeiro, Brazil. Universidad de Costa Rica 2003-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/15651 Revista de Biología Tropical; Vol. 51 No. 1 (2003): Volume 51 - Regular number 1 - March 2003; 195–200 Revista de Biología Tropical; Vol. 51 Núm. 1 (2003): Volumen 51 - Número regular 1 - Marzo 2003; 195–200 Revista Biología Tropical; Vol. 51 N.º 1 (2003): Volume 51 - Regular number 1 - March 2003; 195–200 2215-2075 0034-7744 10.15517/rbt.v51i1 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/15651/15002 Copyright (c) 2003 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0
institution	Universidad de Costa Rica
collection	Revista de Biología Tropical
language	eng
format	Online
author	Nascimento Lopes, María José Ribeiro Da-Silva, Elidiomar Py-Daniel, Victor
spellingShingle	Nascimento Lopes, María José Ribeiro Da-Silva, Elidiomar Py-Daniel, Victor A new species of Ulmeritoides from Brazil (Ephemeroptera: Leptophlebiidae)
author_facet	Nascimento Lopes, María José Ribeiro Da-Silva, Elidiomar Py-Daniel, Victor
author_sort	Nascimento Lopes, María José
description	The leptophlebiid mayfly genus Ulmeritoides is composed of nine species, three of which have been recorded in Brazil: U. patagianus, U. uruguayensis, and U. misionensis. In the present paper, a new species of this genus, Ulmeritoides oepa sp.nov., is described and illustrated based on fifteen larvae collected in Uraricoera River, state of Roraima, northern Brazil. The species was compared to U. misionensis, U. tifferae, and U. guanacaste, the other species of Ulmeritoides known from the larval stage. U. oepa sp.nov. can be distinguished from these species by the following combination of characteristics: 1) medial denticle on anteromedian emargination of labrum much larger than others; 2) anterior tibiae slightly stained black toward the apex; 3) medial femora with few dorsal spines, similar to short thick needles; 4) hind femora with numerous dorsal spines, similar to short thick needles; 5) medial femora with no medial black markings, apical brown markings. The new species seems to be more closely related to U. misionensis, another species in which the anteromedian emargination of the labrum has a median denticle much larger than the others. The studied specimens were deposited in the Invertebrates Collection of the Amazonian Research National Institute, Manaus, state of Amazonas, Brazil, and in the Entomological Collection of the Department of Zoology, Federal University of Rio Janeiro, Rio de Janeiro, state of Rio de Janeiro, Brazil.
title	A new species of Ulmeritoides from Brazil (Ephemeroptera: Leptophlebiidae)
title_short	A new species of Ulmeritoides from Brazil (Ephemeroptera: Leptophlebiidae)
title_full	A new species of Ulmeritoides from Brazil (Ephemeroptera: Leptophlebiidae)
title_fullStr	A new species of Ulmeritoides from Brazil (Ephemeroptera: Leptophlebiidae)
title_full_unstemmed	A new species of Ulmeritoides from Brazil (Ephemeroptera: Leptophlebiidae)
title_sort	new species of ulmeritoides from brazil (ephemeroptera: leptophlebiidae)
title_alt	A new species of Ulmeritoides from Brazil (Ephemeroptera: Leptophlebiidae)
publisher	Universidad de Costa Rica
publishDate	2003
url	https://revistas.ucr.ac.cr/index.php/rbt/article/view/15651
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A new species of Ulmeritoides from Brazil (Ephemeroptera: Leptophlebiidae)

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