Seis novas larvas do gênero Micrathyria Kirby e notas sobre a distribuição no Brasil (Odonata, Libellulidae)

Assis, C. V. de; Costa, Janira Martins

doi:10.1590/s0101-81751994000200003

Cited by 10 publications

(4 citation statements)

References 2 publications

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“…Essas espécies pertencem a gêneros relacionados a ambientes lênticos como brejos e poças, associados a macrófitas e detritos (e.g. CALVERT 1956;SANTOS 1968SANTOS , 1970bCARVALHO1991;ASSIS & COSTA 1994;NESSIMIAN 1995a, b;DE MARCO & LATINI 1998). O fato de essas espécies terem sido encontradas no Rio Ubatiba demonstra que o substrato vegetação de remanso pode ter, em alguns meses, características semelhantes à de ambientes lênticos, permitindo o estabelecimento dessas espécies.…”

Section: Resultsunclassified

Composição e preferência por microhábitat de imaturos de Odonata (Insecta) em um trecho de baixada do Rio Ubatiba, Maricá-RJ, Brasil

Assis¹,

Carvalho²,

Nessimian³

2004

Rev. Bras. entomol.

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ABSTRACT. Composition and microhabitat preferences of Odonata (Insecta) immatures in a lowland section of the Rio Ubatiba, Maricá-RJ, Brazil. Monthly sampling was held from May, 1999 to May, 2000 in the Rio Ubatiba, a lowland river situated at Maricá district, Rio de Janeiro State, Brazil. Seven different substrates were collected along fifty meters. A total of 1,279 larvae of Odonata were collected and identified in 27 species, belonging to five families. The most numerous species were Acanthagrion lancea (Selys, 1876), Hetaerina auripennis (Burmeister, 1839), Micrathyria hesperis Ris, 1911 and Telebasis filiola (Perty, 1834). The greatest number of individuals were found in "riparian plants in depositional areas". In general, the species recorded showed habitat preferences: Dythemis multipunctata Kirby, 1894, Erythrodiplax sp., M. hesperis, T. filiola, A. lancea, Erythemis sp., Coryphaeschna adnexa (Hagen, 1861) and H. auripennis seem to prefer organic substrates and Brechmorhoga sp., B. praecox (Hagen, 1969) and Progomphus complicatus Selys, 1854, inorganic substrates.

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Section: Resultsunclassified

Composição e preferência por microhábitat de imaturos de Odonata (Insecta) em um trecho de baixada do Rio Ubatiba, Maricá-RJ, Brasil

Assis¹,

Carvalho²,

Nessimian³

2004

Rev. Bras. entomol.

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“…The remaining material was cleaned in a 0.25 mm mesh sieve for invertebrate sorting. The biological material was fixed in 4% formaline, then sorted and identified according to relevant specialized literature (Reid, 1982;MatsumuraTundisi, 1986;Epler, 1992;Assis & Costa, 1994;Lopretto & Tell, 1995;Merrit & Cummins, 1996;Elmoor-Loureiro, 1997) and the density (ind.g.DW -1 ) calculated. The trophic level of the functional groups of invertebrates living in Eichhornia azurea was determined according to information in Pennak (1991) and Merrit & Cummins (1996).…”

Section: The Experimentsmentioning

confidence: 99%

The invertebrate colonization during decomposition of Eichhornia azurea kunth in a lateral lake in the mouth zone of Paranapanema River into Jurumirim Reservoir (São Paulo, Brazil)

Stripari

Henry

2002

Braz. J. Biol.

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The invertebrate colonization during decomposition of Eichhornia azurea was observed in a lateral lake in the mouth zone of Paranapanema River into Jurumirim Reservoir in two periods of the year. The litter bags method was used for measuring the decomposition rate as well as to evaluate the invertebrates colonization. Forty-two litter bags, measuring 15 × 20 cm in size and 2 mm mesh net, were incubated "in situ". Six litter bags (three for colonization and three for decomposition measurements) were removed after the 1 st , 3 rd , 7 th , 14 th , 28 th , 56 th and 72 nd days of incubation. After each day, the material was carefully cleaned for detritus removal and invertebrate sampling. The biological material was fixed with 4% formaline and then sorted and identified. The remaining plant material was dried in an oven (at 60 o C) and weighed. A fast material loss occurred during the first 24 hours and the decomposition rate was higher during the rainy season than in the dry season. A peak on invertebrate density (110 ind.g.DW -1 ) on the remaining detritus of Eichhornia azurea was recorded in the 56 th day of dry season, when the polyphenol concentration of plant detritus was 0.57 UDO.g.DW -1 . In the rainy season, higher density was found in the 28 th day of incubation, when the polyphenol concentration was 4.36 UDO.g.DW -1 . Apparently, the reduction in the polyphenol concentration was followed by an increase in invertebrate densities. The majority of the species observed in the detritus belongs to the collector group that was dominant after the 7 th and 14 th days in the rainy and dry seasons, respectively.Key words: decomposition, colonization, invertebrate, Eichhornia azurea, lake. RESUMO Decomposição de Eichhornia azurea e colonização por invertebradosA colonização por invertebrados durante o processo de decomposição de Eichhornia azurea foi examinada em duas épocas do ano na zona de desembocadura do Rio Paranapanema,

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“…The exuviae of M. aequalis have 9–10 setae on the labial palps, while those of M. ocellata have 12 premental setae and 12–14 setae on the labial palps and those of M. mengeri have 10 premental setae and 10 setae on the labial palps. Micrathyria mengeri has only two brown bands on the femur and tibia ( Assis & Costa 1994) . Novelo-Gutiérrez & Arce-Pérez (2021) described the larva of M. paulsoni , comparing it with the similar M. didyma and M. hypodidyma , and found that M. paulsoni has only 10 setae on the labial palps, vs 12 in M. didyma.…”

Section: Discussionmentioning

confidence: 99%

Description of the larva of Micrathyria venezuelae De Marmels, 1989 (Odonata: Libellulidae)

Hartung

2022

Odonatologica

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Seis novas larvas do gênero Micrathyria Kirby e notas sobre a distribuição no Brasil (Odonata, Libellulidae)

Cited by 10 publications

References 2 publications

Composição e preferência por microhábitat de imaturos de Odonata (Insecta) em um trecho de baixada do Rio Ubatiba, Maricá-RJ, Brasil

Composição e preferência por microhábitat de imaturos de Odonata (Insecta) em um trecho de baixada do Rio Ubatiba, Maricá-RJ, Brasil

The invertebrate colonization during decomposition of Eichhornia azurea kunth in a lateral lake in the mouth zone of Paranapanema River into Jurumirim Reservoir (São Paulo, Brazil)

Description of the larva of Micrathyria venezuelae De Marmels, 1989 (Odonata: Libellulidae)

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