ABSTRACT
Monthly collections were made using two traps 5 m apart exposed for 48h, containing sardines and installed at points: A at the edge (500 m from the entrance of the Reserve); B 1200 m from the entrance and 1000 m inside the forest; and C 1700 m from the entrance and 500 m inside the forest. The purpose was to evaluate the abundance and richness of calliphorid species as a function of the environmental conditions using Pearson's correlation, compare the richness of the areas using ANOVA and Tukey's test, compare the abundances of the areas by the Kruskal-Wallis test, and also assess the possible influence of the anthropic presence. Rare, intermediary and common species were identified. The collection totalized 8515 Calliphoridae belonging to 26 species, with a predominance of females. None of the 13 species considered common presented a correlation between abundance and temperature: only Cochliomyia hominivorax (Coquerel) and Chrysomya megacephala (Fabricius) were correlated with humidity and only Mesembrinella semihyalina Mello with precipitation. This parameter was the only climatic variable correlated with richness. The greatest abundance and richness of calliphorids occurred in September 2006. From the 13 common species, seven were considered synanthropic, indicating the effect of anthropic action in this site.
Subject(s)
Animals , Diptera , Brazil , Climate , Population Dynamics , TreesABSTRACT
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.
Subject(s)
Humans , Female , Aged , Insecta , Myiasis , ParasitesABSTRACT
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.
Subject(s)
Humans , Male , Adult , Diptera , Ectoparasitic Infestations/diagnosis , Screw Worm Infection/diagnosis , Myiasis/diagnosisABSTRACT
Avaliaram-se três metodologias para analisar a atratividade de Chrysomya megacephala (Fabricius) a cores (vermelho, verde, preto, branco, azul e verde) utilizando aparatos em forma de arena, leque e retângulo. Realizaram-se 7 a 15 repetições/10 insetos, exceto no 1º experimento da arena (1 inseto/repetição). No 1º experimento-arena, adultos diferiram significativamente no 2º pouso (verde>vermelha) e 3º (vermelho>verde e preto). Nos machos diferiram significativamente preto>vermelho. No 2º experimento-arena diferença apenas para machos. No leque, amarelo e azul para machos e vermelho para fêmeas. No retangular, não houve diferença significativa. Ocorreram atratividades variadas devido influências externas e comportamentais dos dípteros.
Three methodologies evaluated the attractiveness of Chrysomya megacephala (Fabricius) to colors (red, green, black, white, blue and green) using arena, fan and rectangle-shaped devices. Seven to 15 repetitions/10 insects were carried out, except for the arena trial (1 insect/repetition). In the first arena trial, adults showed significant differences in the second (green>red) and third landings (red>green and black). In males black>red were significantly different. In the second arena trial, only males did. In the fan trial, yellow and blue were significantly different for males, and red for females. In the rectangular trial, no significant difference was observed. Varied attractiveness occurred due to external and behavioral influences in dipterans.