RESUMO
Calliphoridae and Mesembrinellidae are relevant to environmental conservation, public health, and forensic entomology. Researches regarding the flight behavior and the influence of abiotic factors on these insects may assist the application of entomology sciences. This study aimed to analyze the population fluctuation of Calliphoridae and Mesembrinellidae, verifying the influence of environmental factors, trap height, and the anthropic effect in the Itaipu-Piratininga lagoon complex, Niterói (RJ). The collections were carried out monthly from September 2015 to August 2016, with fish bait (sardines) exposed for 48 h, totaling six traps, installed in three physiognomies (mangrove, ombrophilous forest, and restinga) at 1.5 and 2.5 m from the ground. Nine thousand seven hundred seventy-three individuals were captured, comprising two families, five genera and 11 species. Chrysomya megacephala (Fabricius, 1794) (Diptera: Calliphoridae) was the predominant species and Mesembrinella bellardiana (Aldrich, 1922) (Diptera: Mesembrinellidae) the least representative, indicating the low preservation level of this ecosystem. There was a weak, positive correlation between abundance of Chloroprocta idioidea (Robineau Desvoidy, 1830) (Diptera: Calliphoridae), Ch. megacephala, Chrysomya putoria (Wiedemann, 1818) (Diptera: Calliphoridae), and Lucilia cuprina (Wiedemann, 1830) (Diptera: Calliphoridae) with the temperature, as well as between the abundance of C. idioidea and Chrysomya albiceps (Wiedemann, 1819) (Diptera: Calliphoridae) with precipitation; however, there was no correlation between abundance and relative humidity. No significant influence of the trap height was observed. We stated a high influence of anthropic effects on the restinga and mangrove physiognomies, while the forest physiognomy still retains its preserved characteristics, with the dominance of forestall species.
Assuntos
Biota , Dípteros/fisiologia , Florestas , Áreas Alagadas , Animais , Brasil , Calliphoridae , Entomologia Forense , Dinâmica Populacional , Estações do AnoRESUMO
Flies of the family Calliphoridae play a variety of ecological roles. They carry various pathogens and cause myiasis in humans and livestock, but they are useful to forensic entomology and in larval therapy. Mesembrinellidae flies, formerly classified in the family Calliphoridae, are good bioindicators of human interference in natural environments. In this study, we carried out an inventory of the Calliphoridae and Mesembrinellidae at four collecting sites within the Jardim Botânico do Rio de Janeiro. Eight traps were set, four in the arboretum (sites A and B), where the public is allowed to visit, and four at an Atlantic Forest fragment (sites C and D), open only to researchers. From July 2014 to June 2015, a total of 35,890 calliphorid flies were captured in 10 species and 145 Mesembrinellidea in 3. The greatest number of flies was found at site A and diversity was higher at site C. Chrysomya megacephala (Wiedemann) (Diptera: Calliphoridae) was the most prevalent species, being present at all sites. Mesembrinella bellardiana (Aldrich) (Diptera: Mesembrinellidae), Laneella nigripes (Guimarães) (Diptera: Mesembrinellidae), and Huascaromusca purpurata (Aldrich) (Diptera: Mesembrinellidae) were present at sites C and D, which indicates a preservation of the area because they are asynanthropic species. There were significant differences between sites A and D and sites B and D.
Assuntos
Biodiversidade , Dípteros , Animais , BrasilRESUMO
Forensic entomology is a complementary tool for penal procedures, mainly on estimating postmortem interval. Study of cadaveric fauna in various environments is primary as source of information to support this science. This study collected information about the fauna of Calliphoridae associated to carcasses of Rattus rattus in the Tijuca National Park, RJ. Four collections were conducted, one for each season of 2015, exposing six carcasses at georeferenced points in each collection. The carcasses were placed 550 m from the boarder and equidistant by 100 m. Five decomposition stages were identified, and 10,559 individuals of Calliphoridae belonging to 10 species were collected. The most abundant species were Hemilucilia semidiaphana (Rondani) (Diptera: Calliphoridae) and Lucilia eximia (Wiedemann) (Diptera: Calliphoridae). L. eximia was the most abundant species during the Swelling and Black Putrefaction stages, succeeded in the next stages by two species of the genera Hemilucilia. H. semidiaphana was the dominant species in the last two stages, followed by Hemilucilia segmentaria (Fabricius) (Diptera: Calliphoridae). The genus Mesembrinella (Diptera: Calliphoridae) occurred mainly during the Black putrefaction stage. Mesembrinella bellardiana (Aldrich) was more abundant, with higher occurrence during the Black putrefaction and Dry decay stages. Mesembrinella peregrina (Aldrich) occurred in the two last stages with low abundance. Huascaromusca aeneiventris (Wiedemann) (Diptera: Calliphoridae) occurred during all the observed stages, mainly during the Butyric fermentation stage. Huascaromusca purpurata (Aldrich) (Diptera: Calliphoridae) occurred only during the Dry decay stage and in low abundance. A succession pattern in the carcasses colonization was observed, providing relevant information for the resolution of criminal investigations in this environment.
Assuntos
Cadáver , Dípteros/crescimento & desenvolvimento , Ciências Forenses , Ratos/parasitologia , Animais , Brasil , Entomologia , Larva/crescimento & desenvolvimento , Parques Recreativos , Estações do AnoRESUMO
Paciente do sexo feminino de 63 anos, melanoderma, ingressou em hospital público se queixando de prurido e secreção nos glúteos por aproximadamente um mês, após visita em área rural. A mesma relatou que fazia uso de antibiótico pomada recomendado para tratamento de furúnculo. Ao exame clínico observou-se duas lesões hiperêmicas e com exsudato purulento, diagnosticadas como miíase furunculóide. Foi removida uma larva viva de Dermatobia hominis de cada lesão, com auxílio de curativo oclusivo com vaselina e pinça. Três doenças devem ser diferenciadas: furúnculo, miíase furunculóide, (causada por D. hominis) e miíase tecidual (causada por Cochliomyia hominivorax), devido à extensa destruição tecidual causada por esta última.
A 63 year old black female was admitted in a public hospital complaining of itching and secretion in the gluteus for approximately one month after a trip to a rural area. The patient reported using antibiotic ointment for furuncle treatment. At the clinical examination, two hyperemic lesions showing purulent exudate were observed, and were diagnosed as furunculoid myiasis. One Dermatobia hominis larva was removed from each lesion, by means of occlusion using petroleum jelly and tweezers. Three diseases should be differentiated when dealing with this kind of occurrence: furuncles, furunculoid myiasis(caused by D. hominis) and tissue myiasis (caused by Cochliomyia hominivorax), due to the extensive tissue destruction caused by the latter.
Assuntos
Humanos , Feminino , Idoso , Insetos , Miíase , ParasitosRESUMO
Miíase é uma doença causada por larvas de dípteros que se alimentam de tecidos vivo ou necrosado de hospedeiros. Paciente ingresso em hospital público, em péssimo estado clínico geral, exibia três lesões na cabeça com miíases, das quais foram retiradas 518 larvas de C. hominivorax e duas de D. hominis. Após aretirada de larvas, o paciente foi submetido a enxerto de pele.
Myiasis is a disease caused by an infection due to invasion of tissues or cavities of the body by larvae of dipterans insects that feed on live or necrotic tissue of the hosts. A patient was admitted to a public hospital, with a very bad general clinic state, presenting three lesions in the head, from which 518 larvae of C. hominivorax and two larvae of D. hominis were removed. After the removal of the larvae, the patient was submitted to a skin graft.