EntomoBrasilis

(823 Artigos indexados)

New records of Ulidiidae (Diptera: Tephritoidea) from state of Mato Grosso do Sul, Brazil - (2025)

Devair dos Santos Freitas, Renan da Silva Olivier, Ramon Luciano Mello

Volume: 18 - Issue: 0

Resumo. This study was conducted in an urban fragment of Cerrado (savannah formation) in the municipality of Campo Grande, Mato Grosso do Sul (MS), Brazil. McPhail traps, with sugarcane extract, were used along one year with the goals to sampling ulidiids flies. As results were presented new occurrences for four genera and seven species of uliidids for MS. Besides sampled four species belongs from three genera previous known from MS. The fauna of uliidids from MS increasing in 140% and 100% the number of the species and genera, respectively. Actually, the fauna of ulidiids from MS is represented by 12 species into eight genera.

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New species of Boreofairchildia Wagner & Stuckenberg, 2016 (Diptera: Psychodidae) from Brazil - (2025)

Freddy Bravo

Volume: 18 - Issue: 0

Resumo. Boreofairchildia Wagner & Stuckenberg, 2016 (Diptera: Psychodidae) currently includes fourteen acknowledged species. This genus is mainly found in the Neotropical region, although one species has been described from the Nearctic area. Two species are known Brazil, both from the state of Espirito Santo. In this paper, a new species from the Atlantic Forest of Espirito Santo is described, increasing the total number of Brazilian species to three and the overall species count in the genus to fifteen.

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Occurrence of lacewing species (Neuroptera: Chrysopidae) in an olive orchard (Olea europea L., Oleaceae) - (2025)

Thainara Brito Gonçalves, Andressa Negri Palandi, Eike Daniel Fôlha-Ferreira, Francisco José Sosa-Duque, Marcos Magalhães de Souza

Volume: 18 - Issue: 0

Resumo. Forest fragments associated with agricultural areas are beneficial for maintaining species that act as natural biological controls. Lacewings are an example of organisms that contribute to this control, however, there is little information on the sampling methodology for this taxon, as well as its occurrence in olive cultivation, Olea europaea L. (Lamiales: Oleaceae). Therefore, the aim of this study was to report the richness of lacewings (Neuroptera: Chrysopidae) collected with attractant traps in an olive orchard, associated with fragments of mixed Atlantic Forest. The traps were baited with passion fruit juice at a rate of 200 mL per bottle. The traps were installed at Sítio Carpe Diem, in the Serra da Mantiqueira, municipality of Cambuí, southern Minas Gerais (-22.625000 and -46.148333) from September 2023 to January 2024. As a result, a total of 109 lacewing specimens from one subfamily, two tribes, six genera and 14 species were collected. The occurrence of this taxon in the area may reflect the biome in which the property is located, the high temperature and the fragment of native forest. The data obtained in this study suggests that the use of passion fruit bait is advantageous for sampling lacewings, as well as highlighting the importance of agroecological practices for the permanence of natural enemies in cultivated areas.

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Amazonian stingless bees: lethal concentration and mortality after exposure to insecticide in Melipona interrupta Latreire, 1811 (Hymenoptera: Apidae) - (2024)

Douglas de Campos, Juciane Conceição da Silva-Lima, Gislene Almeida Carvalho-Zilse

Volume: 17 - Issue: 0

Resumo. Neonicotinoid insecticides can cause a reduction in feeding rate, locomotion, and behavioral changes such as a reduction in flight speed and distance traveled by adult bees. Chronic exposure to sublethal concentrations can result in behavioral disorders and memory loss. This study investigated the effects of insecticides on Amazonian stingless bees, evaluated whether Melipona interrupta Latreire, 1811, is sensitive and does not reject food contaminated with Thiamethoxam, and compared the effects on native stingless bees from the northern region to Apis mellifera. Mortality was evaluated in these bees when exposed to Tiamethoxam (absolute standard AS and Actara 250 WG - commercial product) and Dimethoate AS as a positive control, thus verifying the lethal concentration 50 (LC50) for the species M. interrupta, popularly known as jupará. The mortality of forager workers exposed to active ingredient formulations indicated an LC50 of 24.77 ng/μL for Dimethoate, validating the tests, and 1.28 ng/μL for Tiamethoxam AS and 1.22 ng/μL for Actara 250 WG, values much lower than those found for A. mellifera bees, which were 4.28 ng i.a./µL of Tiamethoxam. Therefore, we concluded that formulations with the active ingredients Dimethoate and Tiamethoxam are highly toxic to Amazonian bees of the species M. interrupta.  

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Antennal ultrastructure of three species of Cyclocephala Dejean, 1821 (Coleoptera: Scarabaeidae) - (2024)

Sérgio Roberto Rodrigues, Andrezza Santos Cocco

Volume: 17 - Issue: 0

Resumo. This study describes the antennal ultrastructure in Cyclocephala forsteri Endrodi, 1963, Cyclocephala melanocephala (Fabricius, 1775) and Cyclocephala tucumana Brethes, 1904 (Coleoptera: Scarabaeidae). Adult of Cyclocephala Dejean, 1821 specimens were collected using a light trap placed near a pasture area, segregated by gender, based on male-specific dilated pre-tarsomeres and preserved in 70% alcohol. Scanning electron microscopy (SEM) images of the antenna lamellae were obtained from ten specimens at Universidade Estadual Paulista (UNESP) in Ilha Solteira, SP, Brazil. We identified trichoid, chaetic, placoid, coeloconic, basiconic sensilla, and pores in antenna of all the species. Placoid sensilla were prevalent in the antennal lamellae. The antennae of C. forsteri females had 5,457 sensilla, of which 5,327 (97.62%) were placoid, 123 (2.25%) coeloconic, and seven (0.13%) basiconic, while the antennae of males showed 5,351 sensilla, with 5,238 (97.89%) being placoid, 100 (1.87%) coeloconic, and 13 (0.24%) basiconic. The antennae of C. melanocephala females presented 6,814 sensilla, with 6,581 (96.58%) being placoid, 231 (3.39%) coeloconic, and two (0.03%) basiconic; while those of males had 6,333 sensilla, with 6,023 (95.11%) being placoid and 310 (4.89%) coeloconic. Finally, the antennae of C. tucumana females had 1,981 sensilla, with 1,845 (93.13%) being placoid, 127 (6.42%) coeloconic, and nine (0.45%) basiconic; while the antennae of males had 3,756 sensilla, with 3,656 (97.34%) being placoid, 99 (2.64%) coeloconic, and one (0.02%) basiconic. Overall, adults of C. melanocephala and C. tucumana presented dimorphism in the antennal sensilla.

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Biological Control of Tribolium castaneum (Herbst, 1797) (Coleoptera: Tenebrionidae) with fungi from Brazilian Amazon - (2024)

Nárcya Trindade de Souza, Bruno Leite Beltrão Frederico, Gleison Rafael Queiroz Mendonça, Atilon Vasconcelos de Araujo, Adalberto Hipólito Sousa, Clarice Maia Carvalho

Volume: 17 - Issue: 0

Resumo. Stored grains are attacked by insect pests, causing various types of damage and potentially generating economic losses for producers. Tribolium castaneum (Herbst, 1797) (Coleoptera: Tenebrionidae), popularly known as the red flour beetle, is one of these secondary pests. Thus, the objective of this study was to evaluate the potential of entomopathogenic fungi from the Brazilian Amazon for the control of T. castaneum. To evaluate the control of T. castaneum, different conidial suspensions (105, 106, 107 and 108 conidia/mL) of Beauveria sp. (4.438) and Paecilomyces sp. (4.658) were used, placing 1 mL of each concentration in the center of Petri dish and keeping the insects for 10 min. After that, they were transferred to another Petri dish, incubated for 7 days at room temperature, and Tween 0.01% and NaCl 0.9% solutions were used as negative controls. T. castaneum mortality was obtained only at the highest dilution, 108 conidia/mL, being 22% for the fungus Beauveria sp. (4.438) and 5% for Paecilomyces sp. (4.658). Susceptibility to exposure to abiotic factors was measured with suspensions of Beauveria sp. (4.438) conidia at a concentration of 106 conidia/mL exposed to ultraviolet light for 0, 30, 60 and 120 seconds, and at temperatures of 20, 26 and 32 ºC for 30, 60 and 90 min. The highest germination rate was at 20 °C for 90 minutes, with 92%. The entomopathogenic fungi from the Amazon showed low potential for controlling T. castaneum, however, they may present a higher mortality rate for other insect pests.

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Butterflies (Lepidoptera: Papilionoidea) deposited in the Gregório Bondar Entomological Collection of the Cocoa Research Center, Ilhéus, Bahia, Brazil - (2024)

Gabriel Vila-Verde, Clemensou Reis, Márlon Paluch, Jacques Hubert Charles Delabie

Volume: 17 - Issue: 0

Resumo. The Gregório Bondar Entomological Collection (CEGB) of the Cocoa Research Center (CEPEC) has its origins in the 1930s with Dr. Gregório Bondar's insect collection that he constituted in the state of Bahia, Brazil. Bondar, a Russian-Brazilian entomologist, significantly contributed to Brazilian entomology and agriculture, and his extensive collection was in great part donated to the American Museum of Natural History. A smaller portion remained in Brazil and was eventually transferred to CEPEC in the 1960s. The collection, originally known as "Entomoteca Gregório Bondar", has grown to over 30,000 specimens by the 1980s. It holds valuable historical data that supports biodiversity monitoring and ecological research. The CEGB's Lepidoptera section features specimens collected from 1936 to 2024, mostly from the Atlantic Forest biome. This article aims to contribute to the knowledge of the distribution of butterflies in the Atlantic Forest, primarily from southern Bahia, by providing data on the specimens deposited in the CEGB at CEPEC in Ilhéus, Bahia, Brazil. A total of 531 specimens in 249 species of butterflies distributed within six families were recorded: 282 Nymphalidae (109 spp.), 107 Hesperiidae (63 spp.), 60 Riodinidae (31 spp.), 46 Lycaenidae (30 spp.), 33 Pieridae (14 spp.), and three Papilionidae (2 spp.). Specimens were collected from 11 localities in the Atlantic Forest biome. The CEGB provides data on butterfly distribution, including new records for the state of Bahia and the Atlantic Forest, highlighting its significance for research and conservation efforts.

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Butterflies of two atlantic forest conservation units from Paraíba state, northeast of Brazil - (2024)

Emanoel Pereira Gualberto, Adalberto Dantas de Medeiros, Solange Maria Kerpel

Volume: 17 - Issue: 0

Resumo. Conservation Units are areas legally established by the government with the goal of conserving territory and its natural resources. Given the limited knowledge about the invertebrate biodiversity in the Northern Atlantic Forest, including its legally protected areas, the present study aimed to inventory butterfly species in two Conservation Units of the Northern Atlantic Forest in Paraíba, Brazil: Engenho Gargaú Private Natural Heritage Reserve (RPPN Gargaú) and Mata do Xém-xém State Park (PE Xém-xém), both located in the metropolitan region of João Pessoa. We conducted the collections every two months, over three consecutive days, in six expeditions from February 2013 to April 2014 in RPPN Gargaú and in four expeditions from August 2014 to April 2015 in PE Xém-xem. Additionally, a two-day collecting expedition was carried out in August 2021 in RPPN Gargaú. We employed two sampling methods: Van Someren-Rydon traps and entomological nets. A total of 212 species (2,841 specimens) were recorded, 158 (1,867 specimens) in RPPN Gargaú and 129 (974 specimens) in PE Xém-xém. Overall, Hesperiidae was the richest family (81 spp.), followed by Nymphalidae (70), Riodinidae (22), Lycaenidae (22), Pieridae (12), and Papilionidae (4). Out of the total species, 48 are new records for Paraíba, and seven for northeast Brazil. Notably, the record of Morpho menelaus eberti Weber, 1963 in RPPN Gargaú, a subspecies classified as Critically Endangered (CR), stands out. The results emphasize the need to protect the forest remnants in the region, as well as to develop management and monitoring actions for butterflies and other invertebrates.

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Case report of a preserved male corpse: estimation of post-mortem interval based on four Dipteran species of four different families - (2024)

Victor Wilson Botteon, Anderson Gaedke, Victor Michelon Alves

Volume: 17 - Issue: 0

Resumo. Case reports are extremely valuable in forensic entomology and very rare in Brazil. In this report we describe a case of multiple colonization of a preserved male cadaver found indoors in Santa Catarina State, southern Brazil, by four dipterans species of four different families: Fannia canicularis (Linnaeus, 1761) (Diptera: Fanniidae), Microcerella halli (Engel, 1931) (Diptera: Sarcophagidae), Muscina stabulans (Fallén, 1817) (Diptera: Muscidae) and Sarconesia chlorogaster (Wiedemann, 1830) (Diptera: Calliphoridae). The development time data of the species were used to estimate the minimum postmortem interval (PMI). Considering the methodology applied in this study and the values calculated for the species development, it was possible to estimate a minimum PMI of 24 days. Besides the diversity of dipteran species colonizing a single human body in an indoor environment, this case report reinforces the importance of these species as forensically indicator to estimate the time of death.

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Diversity of Calliphoridae and Sarcophagidae (Diptera: Oestroidea) in a forested area in the municipality of Macaé, RJ, Brazil - (2024)

Anna Beatriz Costa dos Santos, Márcia Souto Couri, Cátia Antunes Mello-Patiu

Volume: 17 - Issue: 0

Resumo. Sarcophagidae and Calliphoridae are families of Diptera that cover, respectively, about 3,100 and 1,000 species described worldwide. The species of these families have medical and veterinary importance, due to their role as vectors of pathogenic agents. The Diptera fauna is little known in many Brazilian ecosystems, including some phytophysiognomies of the Atlantic Forest. In the present study, two expeditions were carried out, one in the rainy season and the other in the dry season, using four traps baited with fish and exposed for 48 hours in the field in the Parque Natural Municipal Atalaia in the municipality of Macaé. The collected material was sorted and assembled at Instituto de Biodiversidade e Sustentabilidade - NUPEM/UFRJ and transported to Laboratório de Biodiversidade e Sistemática de Diptera - Museu Nacional, UFRJ (MNRJ), for later identification. A total number of 712 specimens of Calliphoridae and 27 of Sarcophagidae were collected. The sampling effort for Sarcophagidae collection was average, since the species accumulation curve continues to rise, unlike the Calliphoridae curve, which remains stable. The study included species considered asynanthropic, as Hemilucilia semidiaphana (Rondani, 1850) (Calliphoridae), but also invasive species, like those of the genus Chrysomya Robineau-Desvoidy, 1830 (Calliphoridae). Therefore, the present study contributed to expand knowledge about both families in the Atlantic Forest, in Rio de Janeiro, and emphasized the importance of continuing studies in the region, as many species are asynanthropic, while others are invasive, which can result in the inhibition of the native ones.

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Effects of Beauveria bassiana (Bals.-Criv.) Vuill. on the growth of Vigna unguiculata (Linnaeus) Walpers under laboratory and field conditions, and the resistance of the plant to insect attack - (2024)

Julner Pachoute, Danival José de Souza

Volume: 17 - Issue: 0

Resumo. Beauveria bassiana (Bals.-Criv.) Vuill. is an established biocontrol agent in laboratory, but studies have shown negative effects of temperature and Ultraviolet radiation on its potential in vitro. Nevertheless, there is a lack of studies about its endophytic colonization in vivo, especially in field conditions in cowpea [Vigna unguiculata (L.) Walp.]. In this sense, this study aimed to evaluate the effects of B. bassiana applied to cowpea seed on the growth of the plants under laboratory and field conditions, and on their resistance to insect attack. Cowpea seeds were treated with suspension of 5 x 108 conidia/mL of B. bassiana. The plants were cultivated in two independent conditions (laboratory and field). The resistance to attack of the pest in field conditions was assessed by monitoring weekly the plants three times a week during 12 weeks, from the initial vegetative to the reproductive stage. According to the results, in laboratory conditions, there were significant differences among the inoculated and control plants for the variables of height of the plants (31.17 cm for treatment and 23.00 cm for control plants) and dry mass of the root (2.38 g for treatment and 0.97 g for control plants). In field conditions, the observed pest insects were miner fly [Liriomyza sp.] (Diptera: Agromyzidae), Cerotoma arcuata Olivier, 1791 (Coleoptera: Chrysomelidae), aphid (Aphis craccivora Koch, 1854) (Hemiptera: Aphididae) and the polyphagous hemipteran [Crinocerus sanctus (Fabricius, 1775)] (Hemiptera: Coreidae). The treated plants were less affected than control plants by these pests, especially at the beginning of the vegetative phase.

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Evaluation of two methods for monitoring the blackmargined pecan aphid and its predators - (2024)

Jardel Boscardin, Ervandil Corrêa Costa

Volume: 17 - Issue: 0

Resumo. The present study aimed to evaluate, qualitatively and quantitatively, yellow sticky traps and entomological net in the monitoring of Monellia caryella (Fitch, 1855) (Hemiptera: Aphididae) and its predators in a pecan plantation in Santa Maria, Rio Grande do Sul, Brazil. This plantation was implemented on 1.2 ha in February 2012 with the Barton and Shawnee varieties at a spacing of 7 m x 7 m. Twenty pecan plants were randomly selected to sample the blackmargined pecan aphid and its predators. From November 2014 to May 2015, 13 collections were carried out with yellow sticky traps and an entomological net. A total of 898 arthropod specimens were collected, 50.9% of which were from yellow sticky traps and 49.1% from the entomological net trap. Regarding the yellow sticky traps, only M. caryella was identified at the species level, with the predators identified at the taxonomic levels of order (Araneae) and family (Coccinellidae; Coleoptera). In terms of the entomological net, all the insects of interest at the species level were identified. There was a significant difference only between the averages in the number of Araneae specimens, with the highest density found in the yellow sticky traps. Both methods provided the correct identification of M. caryella and efficiently recorded its population peak. It is concluded that yellow sticky traps are effective for monitoring M. caryella, while the entomological net is suitable for monitoring and correctly identifying species of natural enemies of the insect pest in pecan plantations.

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First record of the nymph of Caenis cuniana Froehlich, 1969 (Caenidae: Ephemeroptera) and new distributional records of Caenidae from Colombia - (2024)

Luis Gonzalo Salinas-Jiménez, Lucas Ramos Costa Lima, Jose Ismael Rojas-Peña, Clara Ines Caro-Caro

Volume: 17 - Issue: 0

Resumo. In Colombia have been recorded eight species of the family Caenidae distributed in three states, at the moment do not exist species reported in the Meta state. In this paper, Caenis cuniana Froehlich, 1969 (Caenidae: Ephemeroptera) is registered for the first time from Colombia, in the same way, Brasilocaenis irmleri Puthz, 1975 and Caenis chamie Alba-Tercedor & Mosquera, 1999 expanded your geographical distribution in the Colombian Orinoquia region.

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Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae) as a predator of the leaf-galling form of the grape phylloxera Daktulosphaira vitifoliae (Fitch, 1856) (Hemiptera: Phylloxeridae) in Brazil - (2024)

Daiana da Costa Oliveira, Simone Andzeiewski, Régis Josué Bohn, Luciano de Azevedo Moura, Daniel Bernardi, Marcos Botton

Volume: 17 - Issue: 0

Resumo. Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae) is an Asian species intentionally introduced in many countries as a biological control agent for insect pests. In Brazil, it was introduced accidentally and recorded for the first time in Curitiba, Paraná State, in 2002. An inventory of natural enemies of the leaf-galling form of the grape phylloxera Daktulosphaira vitifoliae (Fitch, 1856) (Hemiptera: Phylloxeridae) carried out in Bento Gonçalves, Rio Grande do Sul, the occurrence of predation of all stages of development of D. vitifoliae by larvae and adults of H. axyridis. The presence of H. axyridis preying on D. vitifoliae in vineyards is important because it identifies an exotic species acting as a predator of grape phylloxera populations in Brazil.

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Harvestmen (Arachnida: Opiliones) from the Atlantic Forest-Cerrado transition zone of Luminárias, southern Minas Gerais state, Brazil - (2024)

Maria Luiza Simões Silva, Maria Julia da Costa Alvarenga, Luis Gustavo Talarico Rubim, Thiago Henrique dos Reis Pádua, Igor Rodrigues de Castro, Diogo Silva Vilela, Gabriel de Castro Jacques, Marcos Magalhães de Souza

Volume: 17 - Issue: 0

Resumo. The Cerrado and Atlantic Forest biomes are global biodiversity hotspots. However, these environments still face large knowledge gaps concerning fauna inventory studies, such as those on harvestmen. Our study aimed to sample harvestmen species in a transition area between the Atlantic Forest and Cerrado, contributing to future biodiversity assessments and conservation efforts in Brazil. The surveys were conducted in the municipality of Luminárias, southern Minas Gerais state, between May 2023 and March 2024. We collected 185 individuals from six species and three morphospecies with a wide geographical distribution, but whose conservation status has not been assessed, which may affect their protection. Additionally, loss of native vegetation may lead to reductions in their populations. Our study supports current literature, which suggests the need for more inventories and the creation of a Conservation Unit in the Luminárias region.

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Idiopidae Simon, 1889 in the Brazilian Amazon: two new species and a new geographic record - (2024)

João Pedro Costa Gomes, Naila Amanda Sousa dos Santos, Marlus Queiroz Almeida, Nikolas Gioia Cipola, José Wellington de Morais

Volume: 17 - Issue: 0

Resumo. Idiopidae Simon, 1889 is mostly composed of spiders known as trapdoor spiders, which create structures for shelter, hunting and protection against possible predators (Mason et al., 2013). It is divided into three subfamilies: Arbanitinae Simon, 1903, with spiders restricted to Oceania, Genysinae Simon, 1903, occurring in India, Sri Lanka, Madagascar and South America, and Idiopinae Simon, 1889, from South America, Africa, East Middle and South to Southeast Asia (Raven 1985; World Spider Catalog 2023). Idiopidae is widely distributed throughout the world, however, only two genera are present in Brazil: Idiops Perty, 1833 and Neocteniza Pocock, 1895. In this work, we describe a new species for both genera present in Brazil and a new record of Idiops.

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Lepidoptera larvae (Insecta) responsible for herbivory on Vanilla spp. (Orchidaceae) in the Federal District, Brazil - (2024)

Alexandre Specht, Ranyse Barbosa Querino, Willian Rogers Ferreira de Camargo, Amabílio José Aires de Camargo, Wanderlei Antonio Alves de Lima, Zenilton de Jesus Gayoso Miranda Brasil

Volume: 17 - Issue: 0

Resumo. Given its culinary importance and high market value, the cultivation of Vanilla (Orchidaceae) has been expanding annually in Brazil. As observed in many crops, the increase in cultivated areas leads to a greater incidence of insects associated with species of this genus. This study reports the herbivory of larvae from Cremna thasus (Stoll, 1780) (Papilionoidea: Riodinidae: Riodininae), Hypercompe cunigunda (Stoll, 1781) (Noctuoidea: Erebidae: Arctiinae), and Spodoptera cosmioides Walker, 1858 (Noctuoidea: Noctuidae: Noctuinae) on Vanilla bahiana Hoehne and V. planifolia Andrews in the Federal District, Brazil. A list of 19 Lepidoptera species from six families associated with Vanilla spp. worldwide is provided based on a literature review. Most (n=15) of them exhibit polyphagous larvae. Given reports of exotic larvae spreading with orchids worldwide and the discussed larval polyphagy, we address precautions that producers of Vanilla and other orchids should take to reduce the incidence of insect pests in crops, especially in areas with intensive cropping systems involving annual commodities such as maize and soybean.

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Lestrimelitta chacoana Roig-Alsina, 2010 (Meliponini, Apidae) in a Semideciduous Atlantic Forest, Southern Brazil - (2024)

Julia Agostini Colombelli, Yoan Delky Ibañez Ojeda, Guilherme Schnell e Schühli, Fernando Cesar Vieira Zanella

Volume: 17 - Issue: 0

Resumo. The species of the cleptobiotic bee genus Lestrimelitta Friese, 1903 (Hymenoptera: Apidae) are generally known as a menace to Meliponiculture and Apiculture, that is why it is common to observe recommendations to beekeepers to avoid the proximity of their meliponaries with any Lestrimelitta hives. So, besides other anthropic pressures, the growth of beekeeping may represent a particular threat to its species. In this note we address the distribution of three species recorded in the triple border region of Argentina, Paraguay, and Brazil. One of these species, Lestrimelitta chacoana Roig-Alsina, 2010 (Hymenoptera: Apidae), previously described from the Argentinian Dry Chaco, is recorded for the Semideciduous Atlantic Forest in Southern Brazil where it was already expected to be found due to its previous record in a contiguous forest type in Northeastern Argentina. A discussion about the characters to differentiate it from two other species is made.

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Mosquitex, a new tool for capturing Aedes (Stegomyia) aegypti (Linnaeus, 1762) (Diptera: Culicidae) - (2024)

Cyro Guimarães, Thiago Dutra Dias, Simone Pereira Alves, Igor Luiz Souza da Cruz, Marise Maleck

Volume: 17 - Issue: 0

Resumo. The species Aedes (Stegomyia) aegypti (Linnaeus, 1762) (Diptera: Culicidae) is of great importance for human health, as it is responsible for the transmission of viruses that can cause dengue, chikungunya, zika and urban yellow fever. The proposal of this study is to test the efficiency of a new trap model in capturing and trapping Ae. aegypti based on favoring the insect's ecology. This trap model was analyzed regarding the attractiveness for egg-laying, and the trapping of larvae and consequently the adults. The tests were carried out using white traps (original version) and black traps (adapted from the original), both in field and laboratory conditions. In the field, the black traps showed 100% effectiveness compared to white traps, showing more positive results for the attractiveness of Ae. aegypti mosquito and adult imprisonment. According to the results for this trap model, from both test in the field and in the laboratory, it was concluded that this new product is effective in capturing Ae. aegypti and it guarantees mosquito trapping safety, also low-cost production, practicality, logistics and possibility of its use by the local population. After the validation and effectiveness of the trap “drinking-fountain like”, the definitive trap called Mosquitex was developed, which is brand new for this mosquito, with patent registration INPI - BR2020190112226 - 2019, and with the possibility of assisting in the control and monitoring of Ae. aegypti in urban areas.

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Moths (Lepidoptera: Heterocera) collected with light attractant in Serra de Itabaiana National Park, Sergipe, Brazil - (2024)

José Oliveira Dantas, Arivania Santos Pereira, Leandro Sousa Souto, Ana Paula Coelho Marques

Volume: 17 - Issue: 0

Resumo. Lepidoptera includes the butterflies and moths, being considered the second largest order of Insecta, with about 16% of all of the known species in this class. Few lists of Lepidoptera exist for the Northeast of Brazil, a poorly inventoried geographical area. This work had as main objective to accomplish a preliminary study of the moths collected with attractive light at the Parque Nacional Serra de Itabaina, Sergipe, Brazil, verifying the taxonomic diversity and abundance in the study area and analyzing some ecological aspects of the group. A total of 1,450 samples was collected, of which 447 were identified in 19 families. The remaining of the material consisted of 794 microlepidopterous and another 209 not identified specimens. The richness and abundance of lepidopterous did not vary significantly among the dry and rainy seasons (p> 0.05). However, the composition analysis (NMDS) separated the species in two distinct assemblages, but the similarity analysis indicated that this arrangement does not differ significantly (ANOSIM; p = 0.09; R = 0.22), indicating that the nocturnal lepidopterofauna of Serra de Itabaiana stays constant along the year. The time which has a larger number of collected lepidopterous, was from 18:00 to 21:00h. This is a preliminary study, but that serves as reference for other studies with Lepidoptera in Sergipe.

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New records of host plants of Bactrocera carambolae Drew & Hancock, 1994 (Diptera: Tephritidae) in Cooperative Republic of Guyana - (2024)

José Victor Torres Alves Costa, Jefferson Luiz de Aguiar Paes, Luiz Augusto Copati Souza, Patricia Peters, Paul Michael McWatt, Alies van Sauers-Muller, Maria do Socorro Miranda de Sousa, Ricardo Adaime

Volume: 17 - Issue: 0

Resumo. Specimens of Bactrocera carambolae Drew & Hancock, 1994 (Diptera: Tephritidae) were obtained from fruits of Averrhoa bilimbi L., Averrhoa carambola L. (Oxalidaceae), Malpighia emarginata DC. (Malpighiaceae), and Psidium guajava L. (Myrtaceae), from a survey carried out in Lethem, Republic of Guyana. This is the first record of B. carambolae in A. bilimbi, M. emarginata and P. guajava in the country.

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New Records of Loxosceles amazonica Gertsch, 1967 (Arachnida: Araneae: Sicariidae) from Tocantins, Brazil with Description of Female Genitalia Variation - (2024)

Kassia Madaleno, Lidianne Salvatierra

Volume: 17 - Issue: 0

Resumo. The knowledge of arachnofauna from Tocantins, Brazil, is still incipient. The present communication expands the known geographical distribution of Loxosceles amazonica Gertsch, 1967 (Arachnida: Araneae: Sicariidae) in Brazilian Cerrado. The brown spider specimens were sampled in Dianópolis municipality and Cristalândia municipality both in Tocantins State, Brazil, between 2022 and 2024. Also, we describe a new variation of the epigynum of L. amazonica. Mapping the distribution of Loxosceles Heineken & Lowe, 1832 species in Brazil is crucial for public health, aiding in prevention and timely treatment of loxoscelism caused by brown spider bites.

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New species of Bolbapium Boucomont, 1910 (Coleoptera: Geotrupidae) from Brazil - (2024)

Caique Dantas, André da Silva Ferreira, Freddy Bravo

Volume: 17 - Issue: 0

Resumo. Bolbapium Boucomont, 1910 is a Neotropical genus of Geotrupidae with 22 known species. In this paper, we describe Bolbapium vazdemelloi sp. nov. in Southwestern Bahia, Brazil. This new species is distinguished from congeneric species by its unique combination of morphological characters: cephalic tubercle adjacent to each eye; pronotum with little expanded bidentate tubercle; parameres symmetric, with acute and divergent apex. The new species was incorporated into a previously published identification key for Bolbapium.

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Odonata Community in a transition area between Atlantic Forest and Cerrado, Southern Minas Gerais, Brazil - (2024)

Lara Guerra Rebello Amaral, Eike Daniel Fôlha Ferreira, Tomás Matheus Dias de Oliveira, Diogo Silva Vilela, Gabriel de Castro Jacques, Marcos Magalhães de Souza

Volume: 17 - Issue: 0

Resumo. The Atlantic Forest and Cerrado biomes are global biodiversity hotspots. Despite this, they are constantly losing their natural habitats, making it urgent to conduct fauna inventories for the conservation of taxa such as dragonflies (Odonata). These insects provide fundamental environmental services to both aquatic and terrestrial ecosystems and are poorly sampled in some regions of Minas Gerais state. In this regard, the present study aimed to inventory the Odonata community in the surroundings of Luminárias, a municipality located in southern Minas Gerais state, Brazil. This area consists of a transition between Cerrado and Atlantic Forest, with biotic and abiotic attributes suggesting the creation of a Conservation Unit (CU) to provide data on the distribution of this taxon for future conservation actions. The study was conducted between 2023 and 2024, in 10 locations, totaling 690 hours of sampling effort. Fifty-seven species were recorded, distributed among seven families, with four species at some risk of extinction or with insufficient data, according to the IUCN or ICMBio. Considering the significant richness of Odonata fauna obtained in this study, which includes threatened species, it is urgent to establish management actions for the protection of these populations, including the creation of a CU.

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Recent observations on the distribution of the endangered butterfly Eresia erysice erysice (Geyer, 1832) (Lepidoptera: Nymphalidae) - (2024)

Gabriel Vila-Verde, Jacques Hubert Charles Delabie

Volume: 17 - Issue: 0

Resumo. The Brazilian endemic butterfly Eresia erysice erysice (Geyer, 1832) (Lepidoptera: Nymphalidae) has been included in the Official List of Brazilian Endangered Fauna as critically endangered (CR). Until now, this rare butterfly has only been known to inhabit Atlantic Forest fragments in the “Hileia Baiana”. This paper presents updated information on occurrences of E. e. erysice. A male and a female specimens were collected in a disturbed forest fragment near the experimental fields of the Centro de Pesquisas do Cacau (CEPEC), Ilhéus, Bahia. These new findings indicate that the distribution boundary of this subspecies extends about 80 km more to the north and suggest that it is not as exclusive to forest habitats as previously thought.

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