Malaria vector mosquitoes belong to the genus Anopheles Meigen. The Amazon has been changing due to economic activities such as mining, logging, agriculture, and urbanization, leading to changes in malaria transmission patterns in this region. Therefore, this study aimed to survey Anopheles species in a peri-urban area of Macapá, state of Amapá, Eastern Amazon, Brazil. Human landing catches (HLC) and Shannon light traps were used to collect Anopheles adults at three points. We screened breeding sites in all accessible water reservoirs within a 2 km radius of each collection point to collect immatures and found two species: Anopheles (Nyssorhynchus) albitarsis s.l. Lynch-Arribalzága (35.7%) and Anopheles (Nyssorhynchus) braziliensis (Chagas) (64.3%). A total of 267 winged specimens of Anopheles were collected: A. (N.) braziliensis (62.9%), Anopheles (Anopheles) mattogrossensis Lutz & Neiva (11.6%), Anopheles (Nyssorhynchus) triannulatus s.l. (Neiva & Pinto) (11.6%), A. (N.) albitarsis s.l. Lynch-Arribálzaga (6.7%), Anopheles (Nyssorhynchus) darlingi Root (5.2%), Anopheles (Anopheles) peryassui Dyar & Knab (1.5%), and Anopheles (Nyssorhynchus) nuneztovari Galbadón (0.4%). Considering that Macapá has autochthonous malaria cases, our findings can contribute to developing public health measures in this municipality, therefore helping to protect its habitants.

The objectives of this work were to document two new occurrences of Oligonychus (Trombidiformes: Tetranychidae) in coffee plant, present the damage and climatic conditions that may have favored the high population at the time of records, and report the occurrence of natural enemies. The records were done in three production areas in Itacoatiara, Silves, and Urucará, state of Amazonas. We verified the occurrence of Oligonychus mangiferus (Rahman and Sapra) and Oligonychus peronis Pritchard and Baker. In two crops, O. mangiferus was observed causing severe damage, probably due to favorable climatic conditions which coincided with the peak of the dry season in the region. For both species, we observed the occurrence of natural enemies such as predatory insects and mites, and acaropathogenic fungus. Based on the results, the occurrence of O. mangiferus and O. peronis in coffee farming is now known. These pests, especially O. mangiferus, can damage crops during the dry season.

Ruptitermes arboreus (Emerson) is a litter-feeder soldierless termite that builds arboreal cartonated nests. In this paper, we describe and illustrate arboreal nests of R. arboreus, while also describing a fully clayish nest built upon the trunk of a fallen tree. Additionally, we provided physical and populational parameters for two nests. We also illustrate all castes except alates and record two termitophilous species occurring inside the nests.

The aim of this study was to describe Scaptotrigona nigrohirta sp. nov. and Scaptotrigona hylaeana sp. nov., in order to make their names valid, since at least one of these species has already been widely studied and cited, however, never been formally validated. Also, we have added some comparative notes among some species.

Ethylene is a volatile phytohormone that plays an important role in the physiological processes of coffee plants. However, the role of this compound as a semiochemical in the tritrophic interaction involving Hypothenemus hampei, Coffea canephora, and hymenopteran insects remains unknown. Ethylene-baited traps were used in a coffee plantation in the experimental field of Embrapa Rondônia in the municipality of Porto Velho, Rondônia state, Brazil. The experiment was conducted during the fruit maturation period (March and April). Ethylene did not attract H. hampei compared to control traps (distilled water) but was significantly attractive to hymenopterans suggesting that it acts as a synomone.

Cassava crops hold high agricultural importance in Paraná State, Brazil. However, cassava root production is adversely impacted by pests. Aleyrodids, in particular, cause great damage to cassava fields, necessitating better knowledge of predators found in these agroecosystems and novel biological control strategies for integrated pest management. This study reports the first occurrence of the predatory lady beetle Delphastus argentinicus Nunenmacher, preying on all life stages of whiteflies in cassava fields. Given the economic and social importance of cassava crops in Brazil and the deleterious potential of aleyrodid species, it is recommended to conduct behavioral and bioecological studies assessing the application of D. argentinicus as a biocontrol agent in integrated pest management programs.

Odonata sampling effort in the state of Minas Gerais has intensified throughout the 21st century. However, research on these insects in some regions and ecosystems such as the Deciduous Forest are incipient, and the effect of prolonged dry periods over these insects is still unknown. This study thus aimed to assess changes in adult Odonata species composition over one year in a Brazilian Deciduous Forest and the Odonata species richness in the Mata Seca State Park in the Manga and Itacarambi municipalities in the Northern region of the state of Minas Gerais State, Brazil. Twenty-four days of sampling were distributed in February, May, July and November, adopting an active search through entomological nets close to lentic environments (Lagoa Angical, Lagoa Comprida, Lagoa Encantada, Lagoa da Prata and two wetlands of Lajedo da Lua); lotic environments (São Francisco river) and in associated terrestrial ecosystems. In total, 55 species were collected. Rainy and dry periods altered Odonata communities’ composition but did not affect species richness and abundance due to the presence of permanent lagoons associated with the São Francisco river. This study shows the importance of the Mata Seca State Park for preserving Odonatofauna in the state of Minas Gerais and for protecting those permanent lagoons.

Recently, Martins-Silva (2022) published the article entitled “Checklist of Aquatic Heteroptera genera (Insecta: Hemiptera) from Brazilian Savanna (Cerrado Biome), with family and genera identification key”. The paper provides information on which genera of aquatic Heteroptera would occur in the Cerrado biome and an identification key to families and genera, based on specimens deposited in the Aquatic Invertebrates Collection of the University of Brasília, Brazil. However, it presents many problems, including misidentifications, lack of care with references, scientific names and taxonomic authorities, and poor grammar, syntax and spelling. Here, we express our concern about this paper and provide identification corrections for specimens figured in it whenever possible.

The present communication deals with a faunistic study on two species of Latrodectus Walckenaer with medically important issues from Oman. Several specimens of Latrodectus have been collected at various localities in Sultanate of Oman. This study records two species of Latrodectus from Oman, of which Latrodectus cinctus Blackwall only from northern Oman and Latrodectus geometricus C.L. Koch from both northern and southern Oman.

Neoempheria Osten Sacken is a genus of Mycetophilidae that has a life cycle associated with fungi. The genus is diverse in the Neotropical region, with 41 species known from Brazil that are predominantly known in southern and southeastern areas. This study reports on the first record of this genus for Pará state and redescribes Neoempheria bilobata Edwards, which was previously decribed from a male holotype from southern Brazil. We furnished high-resolution images and illustrations, as well as a detailed redescription of this species, based on male and female specimens.