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Revista de Biología Tropical
Article . 2003
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A new species of Ulmeritoides from Brazil (Ephemeroptera: Leptophlebiidae).

Authors: Nascimento Lopes, María José; Ribeiro Da Silva, Elidiomar; Py Daniel, Victor;

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

Abstract

El género Ulmeritoides de efemeropteros leptoflebidos está compuesto por nueve especies, tres de las cuales han sido informadas en Brasil: U. patagianus, U. uruguayensis, y U. misionensis. En el presente artículo se describe e ilustra una nueva especie de este género, Ulmeritoides oepa sp-. nov., con base en quince larvas recolectadas en el río Uraricoera, en el estado de Roraima, norte de Brasil. La especie fue comparada con U. misionensis, U. tiffera e, y U. guanacaste, las otras especies con estadios larvales conocidos. U. oepa sp.nov. puede ser distinguida de estas otras species por la siguiente combinación de características: 1) dentículo medio en la emarginación anteromedia del labrum mucho más largo que los otros; 2) tibia anterior ligeramente teñida de negro hacia el apex; 3) fémur medio con pocas espinas dorsales, similares a agujas cortas y gruesas; 4) fémur posterior con numerosas espinas (púas) dorsales, similar a agujas gruesas y cortas; 5) fémur medio sin marcas negras medias y con marcas medias apicales color pardo. La nueva especie parece estar más cercanamente relacionada con U. misionensi s, otra especie en la cual la emarginación anteromedia del labrum tiene un dentículo medio mucho más largo que las otras. Los especímenes estudiados fueron depositados en la colección de invertebrados del Instituto Nacional de Investigación Amazónico, Manaus, estado de Amazonas, Brasil, y en la colección entomológica del Departamento de Zoología, Universidad Federal de Río de Janeiro, Río de Janeiro, Brasil.

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.

Countries
Brazil, Costa Rica
Keywords

Ulmeritoides Tifferae, Histology, Insecta, Animal, QH301-705.5, Brasil, Leptophlebiidae, Animalsia, Classification, Insects, Ulmeritoides, taxonomy, Atalophlebiinae, Larva, Animals, Biology (General), Ulmeritoides Guanacaste, Insect, Invertebrata, Ephemeroptera, Brazil

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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