22 research outputs found
First record of Leptus sp. Latreille, 1796 (Acari: Erythraeidae) from Itaipuaçu beach, Maricá, RJ, Brazil
First record of larvae from genus Leptus (Acari: Erythraeidae) in Itaipuaçu beach, Rio de Janeiro, Brazil
A new species of Neocordulia Selys, 1882 (Odonata: Corduliidae) from Minas Gerais State, Brazil
Abstract: A new species of Neocordulia is described and illustrated based on a reared male, collected at Cachoeira da Eubisose stream, São Tomé das Letras, Minas Gerais State, Brazil. The Holotype is deposited in the Museu Nacional, UFRJ, Rio de Janeiro, Brazil
Description of the final instar of Macrothemis heteronycha (Calvert) (Anisoptera: Libellulidae)
Costa, Janira M., Carriço, César, Santos, Tatiana C. (2010): Description of the final instar of Macrothemis heteronycha (Calvert) (Anisoptera: Libellulidae). Zootaxa 2506: 65-68, DOI: 10.5281/zenodo.19594
First record of Phyllocycla hamata Belle, 1990 (Insecta: Odonata: Gomphidae), from Mato Grosso state, Brazil
Six males of Phyllocycla hamata Belle, 1990 were collected in the Reserva Florestal da Usina Hidroelétrica Jauru, Salto da Fumaça, Mato Grosso state, Midwestern Brazil and represent the first record for that state. The specimens examined have been deposited in the Museu Nacional, UFRJ, Rio de Janeiro, RJ, Brazil. This species is included in the volsella group and can be separated from the other species in this group by the cerci shorter than segment 10 (S10), with a very long internal hook
First record of Phyllocycla hamata Belle, 1990 (Insecta: Odonata: Gomphidae), from Mato Grosso state, Brazil
Six males of Phyllocycla hamata Belle, 1990 were collected in the Reserva Florestal da Usina Hidroelétrica Jauru, Salto da Fumaça, Mato Grosso state, Midwestern Brazil and represent the first record for that state. The specimens examined have been deposited in the Museu Nacional, UFRJ, Rio de Janeiro, RJ, Brazil. This species is included in the volsella group and can be separated from the other species in this group by the cerci shorter than segment 10 (S10), with a very long internal hook
Acanthagrion lancea Selys
Acanthagrion lancea Selys Description of last instar larva (figs. 8–14). Head. Almost two times as wide as long, posterolateral margins slightly concave, posterior angle with several short spines (Fig. 8). Posterior margin concave. Seven spines on inferior border of eyes near maxillae. Antennae 7 -segmented, the third antennomere the longest. Labium reaching second coxae; prementum almost 1.4 times as long as wide; anterior margin convex and slightly crenulated, with 5 or 6 premental setae (2 + 1 or 3), the inner ones usually shorter than the others or the same size than the others; lateral margin with usually 8 spiniform setae (Fig. 9). Labial palp with four setae; outer half of distal margin with three very small teeth, inner half with three teeth and a curved end hook; movable hook slender and sharp; inner margin of palp slightly crenulated (Fig. 10). Mandibular formula L 1 + 2 3 + 4 5 0 a b, R 1 + 2 3 4 5 y a (Figs. 11 a,b). Thorax. Wing pads nearly parallel, the external reaching middle of S 4. Legs pale; femora with a row of spiniform setae on the dorsal and lateral surface; tibiae with sparse, long and delicate setae on the external surfaces, apical ends with a delicate group of setae on the internal surface; tibiae II and III with two row of spiniform setae on the internal surface; tarsi with two rows of setae on the ventral surface. Abdomen. Cylindrical. Light brown. Dorsal spines on the tergite surface S 4–10 in female and 5–10 in male. A row of lateral spines on S 2–10. Male gonapophyses sharply pointed and divergent with a row of 5 spines, surpassing mid-length of S 10 (Fig. 12). Female gonapophyses exceeding posterior margin of sternite 10, lateral valvae sharply pointed with a ventral row of 5 robust spiniform setae and 4 lateral spines (Fig. 13). Male cerci as in Figure 12, female cerci as in Figure 13. Caudal lamellae lanceolate, with width/length ratio 0.13 (Fig. 14). Dorsal margin of lateral caudal lamella with about 40 setae; ventral margin with about 15 setae. Tracheation as in Figure 14. Measurements. (mm). Total length (without caudal lamella) (N= 3): 10.23 [9.83–10.96]. Head: maximum length: 1.44 [1.42–1.48]; maximum width: 2.16 [2.10–2.27]. Prementum: maximum length: 2.16 [2.10–2.27]; maximum width: 1.53 [1.48–1.59]. Thorax: femur I: 1.54 [1.49–1.57]; femur II: 1.86 [1.79–1.99]; femur III: 2.47 [2.38–2.52]; tibia I: 1.78 [1.75–1.80]; tibia II: 2.14 [2.09–2.18]; inner wing pads maximum length: 3.75 [3.73– 3.78]; outer wing pads maximum length: 3.49 [3.29–3.68]. Abdomen: total length: 6.05 [5.64–6.77]; S 9 length: 0.35 [0.29–0.39]; S 10 length: 0.37 [0.34–0.41]; cerci length: male (N= 1): 0.14, female (N= 2): 0.11; female gonapophyses length (N= 2): 0.80; male gonapophyses length (N= 1): 0.27. Lateral caudal lamella (N= 1): maximum length: 6.36. Specimens examined. 3 exuviae (1 male and 2 females reared). BRAZIL: EspÃrito Santo State, Estação Biológica de Santa Lúcia, Lagoa Molino, 24.vii. 2009, leg. D. Anjos-Santos, C. Carriço, J.M. Costa & T. C. Santos (1 3) [emerged in laboratory: 02.viii. 2009]. Rio de Janeiro State, Rio de Janeiro, São Cristóvão, Horto FAHUPE, Col. 15, Estação 3, nº15, 20.xi. 1985, leg. J. R. Pujol-Luz (1 Ƥ) [emerged in laboratory: 13.i. 1986]; 27.i. 1986, leg. J.R. Pujol-Luz (1 Ƥ) [emerged in laboratory: 17.ii. 1986].Published as part of Anjos-Santos, Danielle, Carriço, César, Costa, Janira Martins & Santos, Tatiana Chrysostomo, 2011, Description of the final instar larvae of Acanthagrion gracile (Rambur) and Acanthagrion lancea Selys (Odonata: Coenagrionidae), pp. 44-50 in Zootaxa 2832 on pages 45-46, DOI: 10.5281/zenodo.20358
Acanthagrion gracile Rambur
Acanthagrion gracile (Rambur) Description of last instar larva (Figs. 1–7). Head. Almost two times as wide as long, posterolateral margins slightly concave, posterior angle with several short spines (Fig. 1). Posterior margin concave. Five or six spines on inferior border of eyes near maxillae. Antennae 7 -segmented, the third antennomere the longest. Labium reaching second coxae; prementum subtriangular, almost 1.3 times as long as wide; anterior margin convex and slightly crenulated, with 6 or 7 premental setae (3 or 3 + 1), the inner one shorter than the others; lateral margin with about 9 spiniform setae (Fig. 2). Labial palp with four setae; outer half of distal margin with three or four very small teeth, inner half with three teeth and a curved end hook; movable hook slender and sharp; inner margin of palp slightly crenulated (Fig. 3). Mandibular formula: L 1 + 2 3 4 5 0 a b, R 1 + 2 3 4 5 y a (Figs. 4 a,b). Thorax. Wing pads nearly parallel, the external ones reaching middle of S 4. Legs pale; femora with a row of spiniform setae on the dorsal and lateral surface; tibiae with sparse, long and delicate setae on the external surfaces; tibiae I with delicate setae on the internal surface, tibiae II and III with a row of spiniform setae on the anterior half of the middle internal surface, apical ends of tibiae with a delicate group of setae on the internal surface; tarsi with two rows of setae on the ventral surface. Abdomen. Cylindrical. Light brown. Dorsal spines on the tergite surface S 7–10, thicker on S 9–10. A row of lateral spines on S 2–10, thicker on S 5 –10. Male gonapophyses sharply pointed and divergent, reaching base of S 10 (Fig. 5). Female gonapophyses exceeding posterior margin of sternite 10, lateral valvae sharply pointed with a ventral row of 7 robust spiniform setae increasing in size posteriorly (Fig. 6). Male cerci as in Figure 5 and female cerci as in Figure 6. Caudal lamellae lanceolate, with width/length ratio 0.12 (Fig. 7). Dorsal margin of lateral caudal lamella with about 50 setae; ventral margin with about 20 setae. Tracheation as in Figure 7. Measurements (mm): Total length (without caudal lamella) (N= 8): 11.45 [10.47–12.82]. Head: maximum length: 1.43 [1.28–1.56]; maximum width: 2.77 [2.65–2.86]. Prementum: maximum length: 1.97 [1.77–2.23]; maximum width: 1.48 [1.38–1.56]. Thorax: femur I: 1.42 [1.29–1.66]; femur II: 1.88 [1.64–2.07]; femur III: 2.43 [2.24–2.66]; tibia I: 1.70 [1.39–1.89]; tibia II: 2.09 [2.00– 2.30]; inner wing pads maximum length: 3.78 [3.65– 3.87]; outer wing pads maximum length: 3.52 [3.32–3.58]. Abdomen: total length: 7.49 [6.83–8.95]; S 9 length: 0.53 [0.36–0.69]; S 10 length: 0.44 [0.30–0.54]; cerci length: male (N= 3): 0.23 [0.22–0.25], female (N= 6): 0.14 [0.10–0.19]; female gonapophyses length (N= 6): 0.95 [0.90–0.99]; male gonapophyses length (N= 3): 0.36 [0.35– 0.37]. Lateral caudal lamella (N= 8): maximum length: 6.34 [6.13–7.11]. Specimens examined: 8 exuviae (3 males and 5 females reared). BRAZIL: EspÃrito Santo State, Estação Biológica de Santa Lúcia, Lagoa Molino, 24.vii. 2009, leg. D. Anjos-Santos, C. Carriço, J. M. Costa & T. C. Santos (2 3) [emerged in laboratory: 29.vii. 2009; 02.viii. 2009]. Rio de Janeiro State: Nova Iguaçu, Tinguá, Reserva Florestal, 09.iv. 1971, leg. N. D. Santos (1 3) [emerged in laboratory, date not determined]; Areal, Fazenda São Joaquim, 10.vii. 1969, leg. N. D. Santos & J. P. Machado (2 Ƥ) [emerged in laboratory, date not determined]; Rio de Janeiro: Quinta da Boa Vista, Horto do Museu Nacional, 04.ix. 1980, leg. N. D. Santos & H. Mesquita (1 Ƥ) [emerged in laboratory, date not determined]; Tijuca, Açude da Solidão, 02.viii. 1967, N. D. Santos (1 Ƥ) [emerged in laboratory, date not determined]; Silva Jardim, JuturnaÃba, Rio São João (CEDAE), 17.ix. 1978, leg. N. D. Santos (1 Ƥ) [emerged in laboratory, date not determined].Published as part of Anjos-Santos, Danielle, Carriço, César, Costa, Janira Martins & Santos, Tatiana Chrysostomo, 2011, Description of the final instar larvae of Acanthagrion gracile (Rambur) and Acanthagrion lancea Selys (Odonata: Coenagrionidae), pp. 44-50 in Zootaxa 2832 on page 45, DOI: 10.5281/zenodo.20358
Ultrastructure of sensilla on antennae and maxillary palps in three Mesembrinellidae species
Abstract Background Having the right identification is essential in the field of entomology. The scanning electron microscopy allows rapid and accurate identification of different species of flies since a better visualization of the external morphology of immature and some adults is possible. The aim of this study is to describe some ultrastructures of three flies in the Mesembrinellidae family: Mesembrinella bellardiana; Mesembrinella bicolor and Mesembrinella semihyalina, all examined by scanning electron microscopy to help increase the anatomical database on flies and deal with phlylogenetic implications. Results The flies were examined under JEOL 6390LV scanning electron microscope (SEM). The microtrichia morphology of the antennae is similar to that of other and are present on all antennal surface with variable distribution. The chaetic sensilla were observed only in the scape (chaetic sensilla I) and pedicel segments (chaetic sensilla I-III). Three types of sensilla: trichoidea, basiconic and clavate were observed in the first flagellomere of M. bellardiana; and two types of sensilla: trichoidea and basiconic were noticed in M. bicolor and M. semihyalina. Olfactory pits were observed in both gender of M. bellardiana and female of M. bicolor. The maxillary palp of the Mesembrinella species in this study does not show sexual dimorphism. Conclusion This investigation provided new findings of some diagnostic structures of flies using SEM, since many of them could have not been observed just by the use of light microscopy
Levantamento de Odonata (Insecta) ao longo das margens do Rio Dois de Setembro, MunicÃpio de Ecoporanga, noroeste do Estado do EspÃrito Santo
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Previous issue date: 2014Escola São Francisco de Assis (ESFA). Programa de Iniciação CientÃfica. Santa Teresa, ES, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Biodiversidade Entomológica. Rio de Janeiro, RJ, Brasil / Museu de Biologia Professor Mello Leitão. Santa Teresa, ES, Brasil.Universidade Federal do Rio de Janeiro. Museu Nacional. Setor de Insetos Aquáticos. Rio de Janeiro, RJ, Brasil / Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Transmissores de Leishmanioses. Rio de Janeiro, RJ, Brasil.Museu de Biologia Professor Mello Leitão. Santa Teresa, ES, Brasil.É apresentado um levantamento de Odonata baseado em coletas
feitas à s margens do Rio Dois de Setembro, MunicÃpio de Ecoporanga, noroeste
do Estado do EspÃrito Santo. As coletas foram realizadas de Junho de 2011
a Fevereiro de 2012, com auxÃlio de redes entomológicas aéreas, em cinco
pontos ao longo das margens do rio, incluindo ambientes com distintos graus
de antropização. Foram coletados 421 exemplares, representando 19 espécies
e mais 15 morfótipos. Dentre as espécies mais encontradas estão Erythrodiplax
basalis (Kirby, 1897); Erythrodiplax umbrata Linnaeus, 1758; Hetaerina
auripennis (Burmeister, 1839); Perithemis lais (Perty, 1834). A ocorrência das
seguintes espécies é registrada pela primeira vez para o Estado do EspÃrito Santo:
Acanthagrion cuyabae Calvert, 1909; Enallagma novaehispaniae Calvert,
1907; Lestes forficula Rambur, 1842. Uma população da espécie ameaçada de
extinção Leptagrion capixabae Santos, 1965 foi encontrada.Inventory of Odonata (Insecta) along the margins of the
river Dois de Setembro, municipality of Ecoporanga, northwest of
EspÃrito Santo State. An inventory of Odonata collected at the margins
of the river Dois de Setembro (municipality of Ecoporanga, northwest of EspÃrito Santo State) is provided. The fieldwork was carried out from June
2011 to February 2012, in five sites along the margins of the river, including
environments with distinct antropization degrees. The specimens were
collected with insect aerial nets. A total of 421 specimens were collected,
representing 19 species and 15 morphotypes. The species more frequently
found are Erythrodiplax basalis (Kirby, 1897); Erythrodiplax umbrata
Linnaeus, 1758; Hetaerina auripennis (Burmeister, 1839); Perithemis lais
(Perty, 1834). The occurrence of the following species is recorded for the
first time from the State of EspÃrito Santo: Acanthagrion cuyabae Calvert,
1909; Enallagma novaehispaniae Calvert, 1907; Lestes forficula Rambur,
1842. A population of the endangered species Leptagrion capixabae Santos,
1965 was found
First record of Phyllocycla hamata Belle, 1990 (Insecta: Odonata: Gomphidae), from Mato Grosso state, Brazil
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Previous issue date: 2011Universidade Federal do Rio de Janeiro. Museu Nacional. Departamento de Entomologia. Rio de Janeiro, RJ, Brasil / Universidade Federal Rural do Rio de Janeiro. Instituto de Biologia. Programa de Pós-Graduação em Biologia Animal. Seropédica, RJ, Brasil / Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Transmissores de Leishmanioses. Setor de Entomologia Médica e Forense. Rio de Janeiro, RJ, Brasil.Universidade Federal do Rio de Janeiro. Museu Nacional. Departamento de Entomologia. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Transmissores de Leishmanioses. Setor de Entomologia Médica e Forense. Rio de Janeiro, RJ, Brasil.Centro Universitário Vila Velha. Vila Velha, ES. Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Transmissores de Leishmanioses. Setor de Entomologia Médica e Forense. Rio de Janeiro, RJ, Brasil.Six males of Phyllocycla hamata Belle, 1990 were collected in the Reserva Florestal da Usina Hidroelétrica
Jauru, Salto da Fumaça, Mato Grosso state, Midwestern Brazil and represent the first record for that state. The specimens
examined have been deposited in the Museu Nacional, UFRJ, Rio de Janeiro, RJ, Brazil. This species is included in the volsella
group and can be separated from the other species in this group by the cerci shorter than segment 10 (S10), with a very
long internal hook