ABSTRACT
ABSTRACT: This note is the first report of Syntomopus parisii De Santis 1976 and Leptomeraporus sp. (Hymenoptera, Pteromalidae) simultaneously parasitizing Melanagromyza sojae Zehntner, 1900 (Diptera, Agromyzidae) in Brazil. The Pteromalidae parasitoids are natural enemies of stem miner flies, opening perspectives for biological control of soybean stem miner fly.
RESUMO: Esta nota é o primeiro registro de Syntomopus parisii De Santis 1976 e Leptomeraporus sp. (Hymenoptera, Pteromalidae) parasitando simultaneamente Melanagromyza sojae Zehntner, 1900 (Diptera, Agromyzidae) no Brasil. Os parasitoides Pteromalidae são inimigos naturais de moscas minadoras do caule, abrindo perspectivas para o controle biológico da mosca minadora do caule da soja.
ABSTRACT
Nosocomial oral myiasis, though a rare entity, do occur under certain circumstances. Early diagnosis and treatment of such conditions prevent further damage/complication, especially in patients who are in intensive care. Dentists, in co-ordination with other medical faculty, play an important role in managing such infections. Further, a greater emphasis should be paid for maintaining better hygiene in public places and in the vicinity of the hospital. This paper is an attempt to illustrate the rare occurrence of oral myiasis that was hospital acquired. Only one case has been reported till now following a search through pubmed.
ABSTRACT
The entomophatogenic bacterium Bacillus thuringiensis produces crystal proteins, named Cry proteins which are encoded by the cry genes. This bacterium is used on biological control of important economical pests, as well as in the control of disease´s vectors, such as Aedes aegypti, a mosquito that transmits the dengue viruses. Isolates of this bacterium can be characterized by the content of cry genes and this prediction helps target different insect orders. In this research, we isolated 76 colonies of B. thuringiensis from 30 soil samples that were taken from Ilha Bela (SP, Brazil), a place where simulids are already biologically controlled by B. thuringiensis, to find bacterial isolates that were capable of controlling A. aegypti. The 16S ribosomal subunit genes of the selected isolates were sequenced, and the isolates were molecularly characterized based on their Dipteran-specific cry gene contents. Eight of the 76 isolates (10.52%) contained the cry4Aa, cry4Ba or cry10Aa genes, these isolates were carried out against A. aegypti larvae on bioassay. The presence or absence of specific cry genes was associated with the observed average larval mortalities. From the 76 isolates, seven (9.2%) were potentially able to control A. aegypti larvae. Therefore these are promising isolates for the biological control of A. aegypti larvae.
Bacillus thuringiensis é entomopatogênica, por produzir proteínas cristais, denominadas proteínas Cry, as quais são codificadas pelos genes cry. Essa bactéria atua no controle biológico de insetos-praga de culturas economicamente importantes, bem como no controle de insetos vetores causadores de doenças, como o Aedes aegypti, mosquito transmissor do vírus da dengue. Os isolados dessa bactéria podem ser caracterizados pelo conteúdo de genes cry que possuem e, assim, predizer o alvo de controle dos mesmos às diferentes ordens de insetos. Com o objetivo de encontrar isolados eficientes no controle do vetor A. aegypti, o presente trabalho isolou 76 colônias de B. thuringiensis a partir de 30 amostras de solo oriundas de Ilhabela-SP, município que se caracteriza por realizar controle biológico de simulídeos com essa bactéria. Os 76 isolados foram sequenciados na região da subunidade ribossomal 16S e caracterizados molecularmente quanto ao conteúdo de genes cry díptero-específicos. No total, oito isolados (10,52% do total) apresentaram bandas para os genes cry4Aa, cry4Ba e cry10Aa, sendo os mesmos testados contra larvas de A. aegypti por meio de bioensaios. A presença e/ou ausência dos genes cry foi associada à mortalidade média de larvas. Dentre os isolados estudados, sete (9,2% do total) apresentaram elevado potencial de controle às larvas de A. aegypti, sendo assim considerados como promissores para o manejo do controle biológico de larvas de A. aegypti com a bactéria B. thuringiensis.
Subject(s)
Animals , Aedes/drug effects , Bacillus thuringiensis/chemistry , Bacterial Proteins/pharmacology , Endotoxins/pharmacology , Hemolysin Proteins/pharmacology , Soil Microbiology , Biological Assay , Bacillus thuringiensis/isolation & purification , Bacterial Proteins/genetics , Bacterial Proteins/isolation & purification , Endotoxins/genetics , Endotoxins/isolation & purification , Hemolysin Proteins/genetics , Hemolysin Proteins/isolation & purification , Larva/drug effects , Pest Control, Biological/methodsABSTRACT
In April 2009, a wild maned wolf, Chrysocyon brachyurus, was captured in an area of cerrado in Brasília, DF, Brazil, with screw worm maggots in external wounds. Fifty larvae were bred in the laboratory and eight adults of Cochliomyia hominivorax (Coquerel) emerged 10 days after pupation. This is the first report of a myiasis by C. hominivorax in a free-living maned wolf in Brazil.
Subject(s)
Animals , Screw Worm Infection/veterinary , Wolves/parasitology , BrazilABSTRACT
Two new species of Sycorax Curtis from the Atlantic Rain Forest of Espírito Santo, S. cariacicaensis Santos & Bravo sp. nov. and S. espiritosantensis Santos & Bravo sp. nov., are described and illustrated.
Duas espécies novas de Sycorax Curtis da Floresta Atlântica do Espírito Santo, S. cariacicaensis Santos & Bravo sp. nov. e S. espiritosantensis Santos & Bravo sp. nov., são descritas e desenhadas.
Subject(s)
Anatomy , Data Collection/classification , Diptera , Ecosystem , Fauna/analysis , Fauna/classification , PsychodidaeABSTRACT
Relata-se a primeira ocorrência do parasitóide Spalangia nigroaenea Curtis, 1839 (Hymenoptera: Pteromalidae) em pupas de Fannia pusio (Wiedemann, 1830) (Diptera: Fanniidae), no Brasil. Pupas de F. pusio foram coletadas em armadilhas utilizando-se fezes humanas como atrativo para os adultos. Obtiveram-se 10 pupas, das quais duas estavam parasitadas por S. nigroaenea, verificando-se uma porcentagem de parasitismo de 20,0 por cento.
The first occurrence in Brazil of the parasitoid Spalangia nigroaenea Curtis, 1839 (Hymenoptera: Pteromalidae) in pupae of Fannia pusio (Wiedemann, 1830) (Diptera: Fanniidae) is reported. Pupae of F. pusio were collected in traps using human feces to attract the adults. Ten pupae were obtained, of which two were parasitized by S. nigroaenea, thus demonstrating a parasitism rate of 20.0 percent.
ABSTRACT
Sycorax longispinosa sp. nov. is described from Serra do Cachorro, Pará State, Brazil. This new species is the first record of the genus from the Brazilian Amazon. An identification key for males of species of Sycorax from the neotropical region is presented.
Sycorax longispinosa sp. nov. é descrita da Serra do Cachorro, estado do Pará. Essa espécie nova constitui o primeiro registro do gênero na Amazônia brasileira. É apresentada uma chave de identificação para machos das espécies neotropicais de Sycorax.
Subject(s)
Diptera/anatomy & histology , Diptera/classification , Diptera/geneticsABSTRACT
Ten new species of Alepia Enderlein from Brazil are described: A. biapicalis, A. clara, A. fumea, A. maculipennis, A. pinna, A. recurva and A. truncata from Bahia, A. lobata and A. obscura fromSão Paulo, and A. distincta from Paraná.
São descritas dez espécies novas de Alepia Enderlein do Brasil: A. biapicalis, A. clara, A. fumea, A. maculipennis, A. pinna, A. recurva e A. truncata da Bahia, A. lobata e A. obscura de São Paulo, e A. distincta do Paraná.
ABSTRACT
Three new species of Tonnoira Enderlein from Bahia, Northeastern Brazil are described: T. bifida sp. n., T. longipennis sp. n. and T. magna sp. n.
São descritas três espécies novas de Tonnoira Enderlein da Bahia: T. bifida sp. n., T. longipennis sp. n. e T. magna sp. n.
ABSTRACT
São descritas cinco espécies novas de Caenobrunettia Wagner do Brasil, Caenobrunettia baiana sp. nov., Caenobrunettia serrajiboiensis sp. nov., Caenobrunettia serrulata sp. nov. e Caenobrunettia variata sp. nov. da Bahia, e Caenobrunettia carioca sp. nov. do Rio de Janeiro. Apresenta-se uma chave de identificação para machos das espécies de Caenobrunettia.
Five new species of Caenobrunettia Wagner from Brazil are described, Caenobrunettia baiana sp. nov., Caenobrunettia serrajiboiensis sp. nov., Caenobrunettia serrulata sp. nov. and Caenobrunettia variata sp. nov. from Bahia state, and Caenobrunettia carioca sp. nov. from Rio de Janeiro state. An identification key for males of species of Caenobrunettia is presented.