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Viruses of the Lyssavirus genus are classified into several genotypes (GT1 to GT7), of which only GT1 (classic rabies virus-RABV) has a cosmopolitan distribution and circulates in Brazil. GT1 is subdivided into several antigenic variants (AgV) maintained in independent cycles with a narrow host range and distinct geographic distributions, namely, AgV1 and AgV2 found in dogs, AgV3 in the vampire bats Desmodus rotundus, and AgV4 and AgV6 in bats non-hematophagous Tadarida brasiliensis and Lasiurus cinereus, a common variant of marmoset (Callithrix jacchus), and crab-eating fox (Cerdocyon thous). In this study, we performed phylogenetic analysis to identify at the antigenic variant level; six RABV genomes derived from the Rabies Surveillance in the north and northeast regions of Brazil. The analysis resulted in the formation of 11 monophyletic clusters, each corresponding to a particular variant, with high bootstrap support values. The samples were positioned inside the AgV3, AgV6, and Callithrix variant clades. This is the first report of the AgV6 variant found in northern Brazil, which provides valuable information for rabies surveillance in the country. The possibility of viral spillover has been much debated, as it deals with the risk of shifting transmission from a primary to a secondary host. However, more genomic surveillance studies should be performed, with a greater number and diversity of samples to better understand the transmission dynamics of each variant to detect changes in its geographic distribution and spillover events.

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Paracoccidioidomycosis (PCM) is the most prevalent systemic mycosis in Brazil. The disease is caused by dimorphic fungi nested within the Paracoccidioides genus. We described 106 PCM cases (47.1 cases/year) at the Tropical Diseases Public Hospital of Tocantins State. PCM was prevalent in males and rural workers over 50 years; the chronic pulmonary form predominated in 67% of cases. The male-to-female ratio was 2.65:1, with more women affected than other endemic regions of Brazil. Urban or indoor activities were reported in women and are ascribed to disease urbanization. qPCR-based assays confirmed the identification of Paracoccidioides DNA in 37 biological specimens. Paracoccidioides sp. DNA was found in 53% of the environmental samples, suggesting autochthonous infections. Therefore, the Tocantins-Araguaia basin must be considered a novel hyperendemic area of PCM in Brazil, reinforcing the importance of including PCM as a notifiable disease, requiring specific diagnosis and health measures.

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Introdução: A incidência de neoplasias que acometem o Sistema Nervoso Central (SNC) tem aumentado gradativamente no mundo. No Brasil, as neoplasias encefálicas primárias são classificadas como a sétima causa de morte entre as neoplasias malignas. O objetivo do presente estudo foi caracterizar o perfil epidemiológico dos pacientes acometidos por neoplasias do SNC em um estado do Norte do Brasil.Métodos: Estudo retrospectivo, onde 196 prontuários, entre 2012 e 2016, de dois hospitais na região Norte do Brasil foram analisados.Resultados: O glioblastoma multiforme foi predominante (30,6%) entre as neoplasias primárias, seguido pelo astrocitoma (12,2%). As neoplasias secundárias, identificadas como metástases encefálicas, corresponderam a 29,9% da amostra, principalmente derivadas de neoplasias do pulmão e mama. A gravidade histológica das lesões neoplásicas foi mais frequente nos homens (p= 0,01). Foi observado que as neoplasias ocorreram com maior frequência a partir da 4º década de vida, exceto nos casos de astrocitoma e meduloblastoma, que foram detectadas principalmente em crianças e adultos jovens.Conclusão: A caracterização dos casos de neoplasias do SNC é de importante para a compreensão da situação atual deste problema de saúde pública na região norte do Brasil.

Introduction: The incidence of central nervous system (CNS) cancer has gradually increased worldwide. In Brazil, primary brain tumors are the seventh leading cause of death among malignant tumors. The objective of the present study was to characterize the epidemiological profile of patients with CNS cancer from a state in northern Brazil.Methods: This retrospective study analyzed 196 medical records between 2012 and 2016 from two hospitals in northern Brazil.Results: Glioblastoma multiforme was predominant (30.6%) among primary tumors, followed by astrocytoma (12.2%). Secondary cancer, defined as brain metastases, accounted for 29.9% of the sample and was mostly associated with lung and breast cancer. The histological severity of neoplastic lesions was more frequent in men (p = 0.01). Cancer occurred more frequently after the fourth decade of life, except in cases of astrocytoma and medulloblastoma, which mostly affected children and young adults.Conclusion: The characterization of CNS tumors is important for understanding the current situation of this public health problem in northern Brazil.

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The reef system off the Amazon River mouth extends from Amapá state to Maranhão state along the Brazilian Equatorial Margin, encompassing more than 10,000 km2 of rhodolith beds and high-relief hard structures on the outer shelf and upper slope. This unique hard bottom mosaic is remarkable for being influenced by the turbid and hyposaline plume from the world's largest river, and also for representing a connectivity corridor between the Caribbean and Brazil. Bryozoans were recently recognized as major reef builders in the Southwestern Atlantic, but their diversity off the Amazon River mouth remained unknown. Here, we report on recent collections obtained from 23 to 120 m depth in Northern Brazil. Sixty-five bryozoan taxa were characterized using scanning electron microscopy, including 57, five and three taxa of Cheilostomatida, Cyclostomatida and Ctenostomatida, respectively. Cribrilaria smitti and three genera (Cranosina, Glabrilaria and Thornelya) are new records for Brazil, and 13 new species are herein described: Antropora cruzeiro n. sp., Cranosina gilbertoi n. sp., Cribrilaria lateralis n. sp., Crisia brasiliensis n. sp., Glabrilaria antoniettae n. sp., Micropora amapaensis n. sp., Parasmittina amazonensis n. sp., Plesiocleidochasma arcuatum n. sp., Poricella bifurcata n. sp., Pourtalesella duoavicularia n. sp., Stephanollona domuspusilla n. sp., Therenia dianae n. sp., and Thornelya atlanticoensis n. sp. Our results highlight the biodiversity significance of the Amazon reefs and the need for more comprehensive sampling to clarify the role of bryozoans in modern turbid-zone reefs and rhodolith beds.

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The clinical and pathological findings of a case of fatal disseminated toxoplasmosis in a captive brown-throated sloth (Bradypus variegatus) from the northern region of Brazil are reported. Clinical signs were nonspecific and included apathy, prostration, dyspnoea, and loss of appetite. Treatment with penicillin was attempted, but the animal died within five days of the onset of clinical signs. Microscopically, there was acute inflammation in the liver, spleen, and lungs associated with necrosis and a few cysts and extracytoplasmic tachyzoites, with a morphology compatible with Toxoplasma gondii. Tissue sections were submitted for immunohistochemistry that confirmed T. gondii as the aetiological agent. To the authors' knowledge, this is the first report of toxoplasmosis in B. variegatus.

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Abstract The study of ca. 280 specimens of Cercyon Leach, 1817 (Hydrophilidae: Sphaeridiinae: Megasternini) deposited in the Coleção Entomológica Pe. J.S. Moure, Universidade Federal do Paraná, Brazil, revealed a new species from Atlantic Rain Forest biome in Paraná State (Southern Brazil) and new records. Cercyon (Cercyon) curi sp. nov. is herein described and illustrated, belonging to the Neotropical C. variegatus species group. Cercyon (Cercyon) nigriceps (Marsham, 1802) is recorded for the first time in Paraná State, and Cercyon (Cercyon) inquinatus Wollaston, 1854 from Amazonas State (Northern Region); these records extend the distributional range of both species in Brazil. Cercyon (Cercyon) praetextatus (Say, 1825) is recorded for the first time from Brazil based on specimens collected in Paraná. Those three species were previously recorded as introduced in South America.

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Introduction: Brazil has more than 8 000 km of coastline but its marine invertebrates are still poorly known. The cirratulid polychaetes have been an especially neglected group because of its challenging taxonomy. Objective: To describe a new species of Protocirrineris. Methods: In a recent survey in two of the largest Brazilian bays, Todos os Santos Bay and Camamu Bay, 84 specimens of four morphotypes of the multitentaculate genus Protocirrineris were collected. Because of the lack of modified chaetae, the taxonomy of Protocirrineris is challenging and only two of these morphotypes are herein described as new species. Results: These two new species are characterized by having tentacular filaments in two groups over chaetigers 3-4 and first branchiae present from chaetiger 1. They differ from each other in relation to the nature of the achaetigerous region, posterior region, ultrastructure of capillary chaetae and methyl green staining pattern. Two incomplete specimens are also considered as Protocirrineris, and brief descriptions are given. Conclusions: The genus Protocirrineris is cited for the first time in Brazil. Four new morphotypes were found in two large estuaries of Brazil, and two new species are formally described.

Introducción: Brasil tiene más de 8000 km de costa, pero sus invertebrados marinos aún son poco conocidos. Los poliquetos cirratulidos han sido un grupo especialmente descuidado debido a su desafiante taxonomía. Objetivos: Identificar morfotipos de Cirratulidae multitentaculados y encontrar nuevos caracteres diagnósticos. Métodos: En muestreo reciente en dos de las bahías más grandes de Brasil, Bahía de Todos los Santos y Bahía de Camamu, se colectaron cuatro morfotipos del género multitentaculado Protocirrineris. Resultados: Debido a la falta de quetas modificada, la taxonomía de Protocirrineris es un desafío y solo dos de estos morfotipos se describen aquí como nuevas especies. Estas dos nuevas especies se caracterizan por tener filamentos tentaculares en dos grupos sobre los quetígeros 3-4 y las primeras branquias presentes de quetígero 1. Se diferencian entre sí en relación con la naturaleza de la región sin quetas, región posterior, ultraestructura de las quetas capilares y el patrón de tinción con verde de metilo. Dos especímenes incompletos también se consideran Protocirrineris, y se dan breves descripciones. Conclusiones: Se cita por primera vez la presencia del género Protocirrineris en Brasil. Cuatro morfotipos del género han sido encontrados en dos grandes estuarios de Brasil. Dos especies nuevas para la ciencia son descriptas.

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Abstract Amblyomma scalpturatum is a tick species that is unique to South America. It is commonly associated with the Amazon biome and has been reported in some Brazilian states. This tick species exhibits host specificity: it parasitizes tapirs and suidae. Its role in transmitting pathogens to humans is still unknown. Amblyomma scalpturatum is known to be a human-biting tick; however, there is only one report showing that humans make suitable hosts for this species. The knowledge of tick fauna is lacking in the Acre State. This study collected free-living ticks with the aim of finding new records in Acre State. Collections were carried out in Amazon forest fragments in Rio Branco municipality. An A. scalpturatum specimen was identified and submitted sequencing of the ITS-2 gene. This study presents the first molecular confirmation of A. scalpturatum collected in situ in Acre State, North Region, Brazil. This study also presents the first record of a successfully completed feeding by an A. scalpturatum nymph on a human host in the North region of Brazil. Further investigation is needed to ascertain the complete life cycle of this tick species, its seasonality in the environment, and its relationship to pathogens and competence to transmit them.

Resumo Amblyomma scalpturatum é uma espécie de carrapato que ocorre apenas na América do Sul. Está comumente associada ao bioma da Amazônia e tem sido relatada em alguns estados brasileiros. Esta espécie de carrapato apresenta especificidade a hospedeiros: parasita antas e suídeos. Sua competência em transmitir agentes patogênicos a seres humanos é ainda desconhecida. Amblyomma scalpturatum é também conhecido por picar seres humanos; entretanto, há apenas um relato que evidencie que seres humanos sejam capazes de serem hospedeiros adequados. Ainda existem lacunas no conhecimento sobre a ixodofauna no estado do Acre. Neste estudo foram coletados carrapatos de vida livre com o objetivo de encontrar novos registros para o estado do Acre. Coletas de carrapatos foram realizadas em fragmentos de floresta Amazônica no município de Rio Branco. Um exemplar de A. scalpturatum foi identificado e submetido a sequenciamento do gene ITS-2. Este estudo apresenta a primeira confirmação molecular de A. scalpturatum coletado in situ no estado do Acre, região Norte, Brasil. Este estudo também apresenta o primeiro relato de parasitismo completo de uma ninfa de A. scalpturatum em um hospedeiro humano na região Norte do Brasil. Mais investigações são necessárias para elucidar o ciclo de vida completo dessa espécie de carrapato, a sazonalidade de seus estádios no meio ambiente, sua relação a agentes patogênicos e competência em transmiti-los.

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Background: Quilombos are Brazilian communities developed by survivor groups following fight against slavery. They are found in the whole of the Brazilian territory, far from urban centers, living in vulnerable and poor socioeconomic situations and continuously suffering from influence of occidentalization. Based on the hypothesis that the way Quilombolas live may be associated with metabolic syndrome (MS), the objective of this study was to estimate the prevalence of MS and to analyze the associated factors in adult residents of Quilombola communities in the northern region of Brazil. Methods: A cross-sectional study was conducted according to the guidelines of the STROBE Statement in five communities of Tocantins. Results: The study investigated 193 individuals who lived for at least 1 year in the communities. The prevalence of MS in this population was 32.12%. There was a higher prevalence of MS or metabolic disorders in women, as well as metabolic profiles related to low high-density lipoprotein and obesity among participants with MS. Conclusion: The prevalence of MS is higher compared with other Quilombola and African communities, indicating an opportunity to improve or develop new programs to reduce MS and metabolic disorders, by making changes in some habits, such as physical activities, because there were differences in metabolic disorders related to the presence of MS.

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Three new species of Acanthocinini (Coleoptera, Cerambycidae) from Rondônia State, Brazil, are described and illustrated: Leptostylus obrienorum, Nyssodrysina maculosa and Urgleptes curvatum. We also present a brief generic discussion about these genera.

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INTRODUCTION: The human T-cell lymphotropic virus type 1 (HTLV-1) is aetiologically linked to myelopathy/tropical spastic paraparesis (HAM/TSP) and adult T cell leukaemia (ATL) besides other less incident pathologies, while the type 2 has not been definitively linked to any diseases. OBJECTIVES: To determine the HTLV-1/2 seroprevalence in two Brazilian communities in northern Brazil. METHODS: In 2010 and 2015, HTLV-1/2 serological surveys were carried out in the Oiapoque county at the Brazilian border with French Guiana and in Santa Cruz do Arari, Marajó Island. Serum and breast-milk samples from 317 women (pregnant, lactating and non-pregnant non-lactating) resident in the Oiapoque county, together with serum samples from 217 females and 70 males living in Santa Cruz do Arari county, were twice screened by two distinct commercial immunoassay methods for antibodies to HTLV-1/2. Seroreactivity was confirmed by a commercial Western blot technique. Participants were interviewed for data concerning their health, socioeconomic and educational status. RESULTS: None of the Oiapoque women, mostly young and descendants of migrants, had antibodies to HTLV-1/2, despite the high HTLV-1 prevalence in neighbouring French Guiana and Caribbean Islands, while five females and three males living in Santa Cruz do Arari county were HTLV-1 infected as confirmed by Western blot testing. In contrast, the Santa Cruz do Arari community lives in relative isolation and is descended mostly from black African people with high consanguinity. CONCLUSION: Despite the proximity between Oiapoque and Santa Cruz do Arari counties, ethnic, age differences, community isolation and consanguinity may explain the distinct HTLV-1/2 epidemiology in these areas of northern Brazil.

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Resumo O artigo propõe realizar um levantamento das "soluções científicas" aventadas para enfrentar as secas no semiárido brasileiro, relacionando-as ao contexto histórico marcado pelo cientificismo que norteava o pensamento intelectual brasileiro e ocidental e, assim, investigar como os "homens da ciência" elaboraram teorias e práticas a respeito da natureza da região e da sociedade sertaneja que a habitava. Nessa perspectiva, são considerados o processo de ocupação do sertão semiárido; as secas desde o período colonial; o impacto social, político e econômico da grande seca de 1877-1879; os debates e os projetos a respeito do flagelo da seca; a construção do discurso da seca como problema regional e nacional.

Abstract The article surveys the "scientific solutions" proposed to address droughts in Brazil's semi-arid sertão and frames them within a historical context characterized by scientificism, which then governed Brazilian and Western intellectual thought. It investigates how "men of science" devised theories and practices regarding the region's nature and sertão society. From this perspective, the article examines the process by which the semi-arid sertão was settled; droughts since the colonial period; the social, political, and economic impact of the great drought of 1877-1879; debates and projects related to the scourge of drought; and the construction of the discourse of drought as a regional and national problem.

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Two new species of Atrichopogon, A. nukini and A. shawadaua, are described and illustrated based on male and female specimens from northern Brazil. The new species are compared to other ten species of Neotropical Atrichopogon which have distinctive pigmented wings, and a key to males of these species is provided.

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This study aimed to identify and characterize genetically species of the genus Hepatozoon detected in Hydrochoerus hydrochaeris (capybaras) and Pecari tajacu (collared peccaries) from two localities from the Eastern Amazon. Blood samples from 196 free-living H. hydrochaeris from Marajó Island and 109 P. tajacu kept in captivity in Belém, Pará, were collected and analyzed for the presence of Hepatozoon spp. Partial sequences of the 18S rRNA gene were obtained and analyzed in comparison to others available in the NCBI database. Our results demonstrated a high prevalence of Hepatozoon canis in both mammals and the existence of four haplotypes of Hepatozoon spp., three of Hepatozoon canis and one of Hepatozoon cuestensis, found only in H. hydrochaeris. In addition, these data increase the genetic diversity of H. canis from the Eastern Amazon, as well as reporting, for the first time, the infection of mammals by H. cuestensis and P. tajacu by H. canis.

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Abstract In November 2014 and May 2015, a total of 44 specimens of the South American silver croaker Plagioscion squamosissimus were collected: 30 in Marajó Bay and 14 in the Tapajós River, state of Pará, Brazil. The aim was to investigate the presence of anisakid nematodes and determine their parasitism indices and sites of infection, because of their importance regarding health inspection. Sixty-nine Anisakis sp. larvae were found; among them, 16 larvae in seven fish collected in Marajó Bay and 53 larvae in four fish in the Tapajós River. The parasitism indices of the nematodes collected from the fish in Marajó Bay comprised prevalence (P) of 23%, mean infection intensity (MI) of 2.28, mean abundance (MA) of 0.53, range of infection (RI) of 1-4, and infection site (IS) in the mesentery. The fish from the Tapajós River showed P = 28%, MI = 13.2, MA = 3.8, RI = 1-22, and IS = mesentery and intestine. To assist in taxonomic identification, images of the specimens obtained through optical microscopy with Nomarski's interferential contrast system and scanning electron microscopy were used. This is the first record of Anisakis sp. parasitizing P. squamosissimus.

Resumo Em novembro de 2014 e maio de 2015, foi coletado um total de 44 espécimes de pescada branca, Plagioscion squamosissimus, sendo 30 na Baía de Marajó e 14 no Rio Tapajós, Estado do Pará, Brasil, com o objetivo de pesquisar a presença de nematoides anisaquideos e fornecer os índices parasitários, assim como os sítios de infecção, devido a sua importância na inspeção sanitária. Encontrou-se um total de 69 larvas de Anisakis sp., sendo 16 em 7 peixes coletados da Baía de Marajó e 53 larvas em 4 peixes do Rio Tapajós. Os índices parasitários desses nematoides coletados dos peixes da Baía de Marajó apresentaram prevalência (P) de 23%, intensidade média (IM) de 2,28, abundância média (AM) de 0,53, amplitude de variação da intensidade de infecção (AI) de 1-4 e sítio de infecção (SI) o mesentério; e os do Rio Tapajós P = 28%, IM = 13,2, AM = 3,8, AI = 1-22 e SI = mesentério e intestino. Para auxiliar na identificação taxonômica foram utilizadas imagens obtidas dos espécimes por microscopia ótica com sistema de contraste interferencial de Nomarski e microscopia eletrônica de varredura. Esse é o primeiro registro de Anisakis sp. parasitando P. squamosissimus.

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The aim of this study of tidepool fishes was analyse variation in their use of intertidal habitats (rocky shore, mangrove and salt marsh). Specimens were collected during wet and dry periods from 18 tidepools in the three habitats. A total of 7690 specimens, belonging to 19 families and 30 species, was captured. The fish assemblage in rocky shore pools was clearly distinct from that of vegetated habitats (mangrove and salt marshes). The rocky shore fauna was dominated by permanent resident species, whereas pools in mangrove and salt marsh habitats were inhabited primarily by opportunistic and transient species. Habitat segregation by ontogenetic stage (e.g. smaller individuals in mangroves, intermediate size classes in salt marsh and sub-adults/adults on rocky shores) indicates age-related migration in response to the physical structure of these habitats and to the natural history of each fish species. These findings are important for the development of effective conservation and management plans for intertidal fishes.

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Noroviruses are the major cause of non-bacterial acute gastroenteritis outbreaks in humans, with few reports about the occurrence of the norovirus GIV strain. We investigated the presence of norovirus GIV in surface water (river, bay, and stream) and untreated sewage, and we determined a positivity rate of 9.4% (9/96). The strains genotyped were GIV.1. To our knowledge, this is the first report of GIV in Brazil.

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Introduction: Sickle cell anemia (SCA) is the most severe form of sickle cell disease; it presents variants that are called haplotypes βS. There are five major haplotypes βS gene: Arab-Indian/Saudi, Senegal, Benin, Bantu, and Camaroon. Objective: Characterize the presence of haplotypes in patients with SCA in Amapá. Methods: 46 sample were studied, all samples were amplified and analyzed by polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP). Results: Bantu (61.2%), followed by Benin (26.5%) and Senegal (12.2%). Conclusion: We identified three haplotypes characteristic of African ethnicity, with the presence of Senegal. In our study we found the presence of atypical haplotype, suggesting concentration and semi-isolation of the founding groups with little mixing. .

Introdução: A anemia falciforme (AF) é a forma mais grave da doença falciforme; apresenta formas variantes que são chamadas de haplótipos βS. Existem cinco principais haplótipos desse gene: árabe-indiano/saudi, Senegal, Benin, Bantu e Camarões. Objetivos: Caracterizar a presença dos haplótipos em pacientes com AF no Amapá. Métodos: Foram estudadas 46 amostras, todas amplificadas e analisadas pela técnica de reação em cadeia da polimerase-polimorfismo de tamanho de fragmentos de restrição (PCR-RFLP). Resultados: Bantu (61,2%) seguido de Benin (26,5%) e Senegal (12,2%). Conclusão: Foram identificados três haplótipos característicos da etnia africana, com a presença do Senegal. Em nosso estudo não encontramos a presença de haplótipos atípicos, sugerindo a concentração e semi-isolamento de grupos fundadores com pouca miscigenação. .

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The environment quality of an industrial district on the river Pará, Amazon estuary, Brazil, based on the assessment of histological alterations and on the determination of catalase activity of the hepatic tissue of two fish species, Plagioscion squamossissimus and Lithodoras dorsalis, is provided. Histopathological changes were evaluated semi-quantitatively and qualitatively. Mean Assessment Values (MAV) and Histological Alteration Index (HAI) of organ lesions were calculated for each zone under analysis, with different impact levels: Zone 1 (industrial district, with high contamination risk); Zone 2 (medium risk) and Zone 3 (minimum risk). Strong positive catalase activity and histopathological changes were reported in Zone 1. None of the specimens of either species captured in Zones 1 and 2 was healthy, whereas more than 60% of the specimens from Zone 3 presented healthy hepatic tissue. The principal alterations observed in the tissue of the two species included an increase in the number of Melanomacrophagous centers, fatty degeneration, inflammation, congestion, hepatitis and focal necrosis. The carnivorous P. squamosissimus presented higher levels of alteration than the herbivorous L. dorsalis. Results showed that local anthropogenic impacts were affecting the health of the two fish species under analysis.

Com o presente estudo foi avaliada a qualidade ambiental em um distrito industrial no rio Pará, estuário Amazônico, Brasil, baseado nas alterações histológicas e na determinação da atividade da catalase no fígado para duas espécies de peixes: Plagioscion squamossissimus e Lithodoras dorsalis. As mudanças histopatológicas foram avaliadas semiquantitativamente e qualitativamente. Os Valores Médios de Avaliação (MAV) e o índice de alteração histológica (IAH) das lesões nos órgãos foram calculados para cada zona com diferentes níveis de impacto: Zona 1 (distrito industrial, com risco alto de contaminação); Zona 2 (risco médio) e Zona 3 (risco mínimo). Na Zona 1 foi observada, para as duas espécies, forte atividade catalase positiva e algum tipo de alteração histopatológica. Não foram observados indivíduos saudáveis nas Zonas 1 e 2. Na zona 3, mais de 60% dos espécimes estudados apresentaram tecido hepático saudável. As principais alterações observadas no tecido hepático para as duas espécies foram: aumento dos centros melanocacrófagos, degeneração gordurosa, inflamação, congestão, hepatite e necrose focal. A espécie carnívora P. squamosissimus apresentou níveis mais elevados de alteração que o herbívoro L. dorsalis. Estes resultados mostram que as alterações da qualidade ambiental no entorno do distrito industrial está afetando a saúde destas espécies de peixes.

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First record of Chrysomya rufifacies (Macquart) (Diptera, Calliphoridae) from Brazil. In addition to its native fauna, the Neotropical region is known to be inhabited by four introduced species of blow flies of the genus Chrysomya. Up until now, only three of these species have been recorded in Brazil - Chrysomya albiceps (Wiedemann), Chrysomya megacephala (Fabricius), and Chrysomya putoria (Wiedemann). In South America, C. rufifacies (Macquart) has only been reported from Argentina and Colombia. This study records C. rufifacies from Brazil for the first time. The specimens were collected in an area of cerrado (savanna-like vegetation) in the municipality of Caxias in state of Maranhão, and were attracted by pig carcasses.

Primeiro registro de Chrysomya rufifacies (Macquart) (Diptera, Calliphoridae) para o Brasil. A região Neotropical compreende além da fauna nativa, quatro espécies de moscas varejeiras exóticas do gênero Chrysomya. No Brasil, até o momento, foram registradas três espécies desse gênero: Chrysomya albiceps (Wiedemann), Chrysomya megacephala (Fabricius), e Chrysomya putoria (Wiedemann). C. rufifacies (Macquart), na América do Sul, foi registrada somente para a Argentina e Colômbia. Neste estudo, C. rufifacies é registrada pela primeira vez para o Brasil. Os espécimes foram coletados em uma região de cerrado, no município de Caxias, estado do Maranhão, atraídos por carcaças de porcos.