EntomoBrasilis

(834 Artigos indexados)

Exotic fruit as a new resource: first report of social wasps (Vespidae: Polistinae) foraging on noni (Morinda citrifolia L.) in northeast Brazil - (2025)

Marcos Aragão, Emanuelle Luiz da Silva Brito

Volume: 18 - Issue: 0

Resumo. Social wasps (Vespidae: Polistinae) are highly adaptable insects that exploit a wide range of locally and seasonally available resources. This study reports the first observation of social wasps foraging on noni fruit (Morinda citrifolia L.) in Northeast Brazil, specifically in the Caatinga biome. Noni, a pantropical fruit known for its environmental tolerance and nutritional content, including high water and protein levels. Seven species of social wasps were recorded foraging on noni in the rural area of Patos, Paraíba state, Brazil. These species included Polybia ignobilis, Polybia occidentalis, Polybia paulista, Polybia sericea, Brachygastra lechiguana, Protonectarina sylveirae, and Polistes canadensis. Observations revealed that the wasps foraged primarily on the carpel disc of the fruit, engaging in scraping behavior to extract juices and soft tissues. No activity was observed on ripe fruits, likely due to their strong odor. The findings highlight the ecological importance of noni fruits as a resource for social wasps, particularly in arid regions as Caatinga biome where such fruits provide essential nutrients.

Acessar o artigo
First occurrence of Blattodea and their association with ants (Hymenoptera: Formicidae) in abandoned social wasp nests (Hymenoptera: Vespidae: Polistinae) - (2025)

Lucas Camargos da Silva Araújo, Diego Gonçalves dos Santos Renne, Edivar Heeren de Oliveira, Gabriel de Castro Jacques, Marcos Magalhães de Souza

Volume: 18 - Issue: 0

Resumo. Abandoned nests of social wasps are used by various arthropods, however, there are no records of cockroaches. Therefore, the objective of this study is to report the occurrence of cockroaches in abandoned social wasp nests. The first record occurred in a Cerrado area, Brazil, where a nymph (Ectobiidae) of a cockroach (Cahita Hebard, 1922) was found in an abandoned social wasp nest. The second record involved three cockroach nymphs (Blattodea: Ectobiidae), found alongside an ant Camponotus sp. (Hymenoptera: Formicidae) in an abandoned nest located in a transition area between the Atlantic Forest and Cerrado biomes. Although the exact reason for their presence cannot be defined, it is possible that the cockroaches were foraging for food or shelter from the rain. This is the first record of cockroaches occupying abandoned social wasp nests and the first record of another insect species occupying an abandoned social wasp nest alongside ants. Given the presence of Blattaria in more than one nest and in different locations and biomes, it can be suggested that this occupation is not merely incidental. However, further studies are necessary to determine the frequency of cockroach use of abandoned nests and to better understand the importance of these nests as microhabitats for these insects.

Acessar o artigo
First record of Cephalotes pusillus Latreille, 1802 (Hymenoptera: Formicidae) nesting in a Sceliphron sp. (Hymenoptera: Sphecidae) nest - (2025)

Rogério Henrique Custódio, Maria Julia Ricci da Costa Alvarenga, Andressa Inacio Bernal, Gabriel de Castro Jacques, Marcos Magalhães de Souza

Volume: 18 - Issue: 0

Resumo. Solitary wasp nests (Sphecidae) are often occupied by other arthropods when abandoned. However, occupation by ants such as Cephalotes Latreille, 1802 is still uncertain. Species of Cephalotes are arboreal and occupy pre-existing cavities, commonly tree hollows. In this respect, the objective of this study is to report the first record of the ant Cephalotes pusillus (Klug, 1824) (Hymenoptera: Formicidae) nesting in a Sphecidae nest in areas cultivated with coffee, Coffea arabica L. The nest was collected on july 5, 2024, in a coffee plantation area in the municipality of Inconfidentes, Minas Gerais, Brazil. This area is associated with a fragment of Atlantic Forest. In the nest of Sceliphron sp. (Hymenoptera: Sphecidae), 64 pupae, 94 adults and four queens of the ant were counted. The successful occupation by the ant may have occurred due to different factors, such as the size and resistance of the nest, the size of the entrance and the multiple cells that are formed inside the nest, which allowed the use of this nest as an incubation site for the ant's larvae. This is the first record of C. pusillus nesting in a Sphecidae nest, but this species is a generalist in terms of the cavities it uses, requiring further observations to confirm the frequency of this behavior.

Acessar o artigo
First report of Neosilba glaberrima (Wiedemann, 1830) (Diptera: Lonchaeidae) infesting corn (Zea mays L.) ears in organic farming system in the Neotropical Region - (2025)

João Batista Coelho, Liz Maria Matilde Duarte, Luciana Barboza Silva

Volume: 18 - Issue: 0

Resumo. Neosilba glaberrima (Wiedemann, 1830) (Diptera: Lonchaeidae) is a species of fruit fly belonging to the Lonchaeidae family, widely distributed in neotropical region. Given the wide distribution and potential ecological and agricultural importance of species within this family, investigating their presence in different cropping systems becomes relevant for understanding their dynamics and possible interactions with cultivated plants. In this context, the objective of this study was to evaluate the occurrence of dipterans from the family Lonchaeidae in organically grown maize in the south-central region of the state of Piauí, Brazil. Sampling was carried out in the municipality of Alvorada do Gurguéia, in an area managed by smallholder farmers organically. Maize ears were collected between November 2019 and May 2020 and transported to the Plant Science Laboratory of the Federal University of Piauí (UFPI), Professora Cinobelina Elvas Campus (CPCE), in Bom Jesus, Piauí. In the laboratory, ears were weighed (total biomass of 12.13 kg) and placed in plastic containers filled with oven-sterilized sand to allow adult emergence. A total of 62 adult flies (33 females and 29 males) belonging to N. glaberrima emerged from 55 maize ears. This study, therefore, constitutes the first record of N. glaberrima (Diptera: Lonchaeidae) associated with maize (Zea mays L.) in Neotropical Region. Understanding the infestation dynamics and impacts of N. glaberrima on Z. mays is essential for developing integrated pest management strategies, and for the adoption of sustainable management and biodiversity conservation strategies in organic systems.

Acessar o artigo
Functional diversity of the cotton crops arthrofauna - (2025)

Gabrielle Brandão Barbosa Iacovino, Janaina Beatriz Aparecida Borges, Patricia Paulichi Camargo, Isabelly Vitórya de Freitas Fernandes, Rúben Eduardo Pedroso Prado, Cristina Schetino Bastos, Dalton de Oliveira Ferreira, Tamíris Alves de Araújo

Volume: 18 - Issue: 0

Resumo. Brazil stands out as the fourth-largest global producer of cotton, benefiting from favorable climatic conditions for crop development. However, these same conditions promote diverse arthropod fauna, encompassing pests and beneficial organisms that contribute ecological services to agroecosystems. This study investigated the functional diversity of arthropods in cotton cultivation under alternative management practices. For two growing seasons, arthropods were sampled and classified into functional groups: pollinators, predators, parasitoids, and detritivores. In addition, parasitized insects were recorded separately. The first season revealed low functional group richness, with only pollinators and predators observed. Diversity indices, such as Shannon and Simpson, were low across all phenological stages, with greater richness during reproductive phases. In contrast, the second season demonstrated increased richness and balance, with all five functional groups represented and higher diversity during reproductive stages. Indices reflected improved functional group distribution, indicating reduced dominance of specific groups and stabilization of the agroecosystem. The findings emphasize the significant influence of phenological stages on arthropod diversity, with reproductive phases offering critical resources for functional groups. Sustainable practices facilitated recovery and stabilization of the agroecosystem, improving richness and abundance of beneficial arthropods. These results highlight the potential of integrated, sustainable management practices in promoting ecosystem in cotton fields.

Acessar o artigo
New record of the Arabian Endemic Tarantula Satyrex ferox Zamani & von Wirth, 2025 (Araneae: Theraphosidae: Eumenophorinae) from southern Oman, with notes on its predator - (2025)

Ali Abduallah Al-Jahdhami, Sulaiman Ali Al-Hashmi, Ahmed Hamood Albusaidi, Adil Salam Ward Al-Riamy, Hilal Saud Al-Naabi, Mohammed Ahmed Al-Hadhrami

Volume: 18 - Issue: 0

Resumo. The present communication deals with the recording of Satyrex ferox Zamani & von Wirth, 2025 (Araneae: Theraphosidae) from the Afrotropical part of Oman (Dhofar region). This species is recorded from Southern Oman for the second time. A brief description of the morphology of S. ferox is provided, along with notes on its predator, the tarantula hawk Hemipepsis heros (Guérin-Méneville, 1849) (Hymenoptera: Pompilidae).

Acessar o artigo
New records of damselflies (Odonata-Coenagrionidae) for Amapá, Brazil - (2025)

Manoel Daltro Nunes Garcia Junior, Monique Telcia dos Santos Damasceno

Volume: 18 - Issue: 0

Resumo. The order Odonata has approximately 7,000 species worldwide, of which just over 900 are registered in Brazil. Even with this high diversity, many regions of the country have little data on the order, such as the state of Amapá. Thus, the objective of this work is to present the first records for the state of the species Epipleoneura albuquerquei Machado, 1964 and Neoneura confundens Wasscher & Van'T Bosch, 2013. The species were collected between February and March 2025 in the area known as the Amcel waterfall, in the municipality of Tartarugalzinho. The number of studies on Odonata in Amapá is still low: only 121 species were previously recorded in the state, a number that rises to 123 with the new occurrences. However, new studies should increase knowledge about the odonatofauna of Amapá.

Acessar o artigo
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.

Acessar o artigo
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.

Acessar o artigo
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.

Acessar o artigo
Optimizing Entomofauna Sampling: A Multi-Stimulus Trap for Sustainable Pest Management in Agroforestry - (2025)

Adriano Tomaz, Matheus Rodrigues do Nascimento, Francisco Sérgio Neres da Silva, Katiuchia Pereira Takeuchi, Gerson Adriano Silva

Volume: 18 - Issue: 0

Resumo. Monitoring insect diversity is crucial for understanding ecosystem dynamics and supporting sustainable agricultural practices. Efficient trapping methods are essential tools for assessing entomofauna in complex agroforestry systems. This study aimed to develop and optimize a trap to assess entomofauna diversity in agroforestry systems. The research was conducted in two agroforestry systems (AFS) located in a transition zone between the Pantanal and Cerrado biomes. Initially, a "Mixed trap", developed by combining light, food, and color attractants, was compared with traps using each attraction principle individually. Subsequently, the influence of trap size and light source was evaluated. Specimen collections were carried out independently for each experiment, and data were analyzed using rarefaction and extrapolation curves, as well as species abundance, richness, and diversity through Hill numbers and the Shannon and Simpson indexes. The Mixed trap showed the highest species richness and diversity. Although it also yielded high values in the Hill diversity indexes, the Light trap proved less efficient, capturing fewer species and lower overall diversity. Insects from the orders Diptera, Thysanoptera, Coleoptera, and Hymenoptera were eudominant in the Mixed trap—an important finding, as these groups include key pest species. Regarding design variables, traps made from 5 L PET bottles equipped with LED lights demonstrated superior performance in capturing a broader range of insect groups. In conclusion, the Mixed trap is more efficient for sampling diverse insect groups. The integration of multiple attractant stimuli in a single trap strengthens entomofauna monitoring in agroforestry systems and supports more sustainable pest management strategies.

Acessar o artigo
Recording and survey of Triatomine fauna (Hemiptera: Reduviidae: Triatominae) distributed in different biomes of the state of Mato Grosso, central region of Brazil - (2025)

Jaqueline Aparecida Menegatti, Cladson Oliveira de Souza, Veruska Nogueira de Brito, Shirley Rodrigues Ramos, Klaucia Rodrigues Vasconcelos, Elaine Cristina de Oliveira, Diniz Pereira Leite-Jr

Volume: 18 - Issue: 0

Resumo. The Triatominae subfamily includes 158 currently existing species, three of which are fossils. Several species of them can transmit the parasitic protozoan Trypanosoma cruzi (Chagas, 1909), the causative agent of Chagas disease (CD), significantly impacting public health in Latin American countries. In this way, the species presente in the central region of Brazil were characterized with a focus on the state of Mato Grosso (MT) and its respective municipalities. Clarification of these factors can hel in the design of vector control strategies. From 2001 to 2024, collections were carried out in 94 municipalities of the state of MT, with active capture of triatomine specimens. A total of 1,720 specimens of triatomines belonging to five genera were collected: Triatoma Laporte, 1832 (1,357; 78.9%), Panstrongylus Berg, 1859 (224; 13%), Rhodnius Stål, 1859 (130; 7.6%), Eratyrus Stål, 1859 (8; 0.5%) and Psammolestes Bergroth, 1911 (1; 0.1%). In the faunistic analysis of the captured species. Triatoma sordida (Stål, 1859) (1,394, 81%) was characterized as the most abundant, being very frequent, constant and dominant species in the Central-West region of Brazil. The present study aims to contribute to health surveillance by identifying the species existing in the state and presenting the potential vector risk of these species for CD.

Acessar o artigo
The buzz about rot: direct evidence of Parachartergus pseudapicalis Willink, 1959 (Vespidae: Polistinae: Epiponini) foraging on carrion, revealed through Citizen science - (2025)

Marcos Aragão, Alexandre Somavilla, Rodolpho Santos Telles Menezes, Marcio Luiz Oliveira

Volume: 18 - Issue: 0

Resumo. Social wasps are known for their opportunistic foraging behaviors, foraging on various resources such as live insects, plant fibers, and even carrion. While necrophagy is documented for some genera, it has not been previously confirmed for the genus Parachartergus. This study provides the first direct evidence of Parachartergus pseudapicalis exhibiting necrophagy, captured through Citizen science in Piedade, São Paulo, Brazil. A wasp was observed collecting tissue from a decomposing caterpillar, demonstrating opportunistic feeding behavior. The mandible structures of Parachartergus suggest adaptations for scavenging, aligning with those of other necrophagous genera. This record enhances our understanding of the genus's dietary flexibility, highlighting the role of Citizen science in contributing valuable data to future studies.

Acessar o artigo
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.  

Acessar o artigo
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.

Acessar o artigo
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.

Acessar o artigo
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.

Acessar o artigo
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.

Acessar o artigo
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.

Acessar o artigo
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.

Acessar o artigo
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.

Acessar o artigo
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.

Acessar o artigo
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.

Acessar o artigo
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.

Acessar o artigo
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.

Acessar o artigo