Eristalis


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Related to Eristalis: Eristalis tenax

Eristalis

 

a genus of flies of the family Syrphidae. The ordinary drone fly (E. tenax) is approximately 1.5 cm long; in coloring it resembles the domestic bee. Members of Eristalis are widely distributed and are found on flowers all summer long. The larvae of Eristalis, the rat-tailed maggots, have a cylindrical body; the body ends with a respiratory tube consisting of elbows that move apart (they can elongate up to 15 cm). The rat-tailed larvae inhabit drainage ditches, shallow bodies of water with putrefying slime, and similar places. They use the respiratory tube to breath atmospheric air, which enables them to inhabit oxygen-poor water. The presence of rat-tailed larvae is an index of water pollution. The larva pupates on shore.

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Con respecto a las miasis accidentales por dipteros de la familia Syrphidae, se reporto por primera vez el caso clinico de una paciente chilena de 27 anos de edad, la cual en un periodo menstrual presento sensacion de cuerpo extrano movil en la region vaginal y luego expulso larvas que fueron identificadas como larvas de tercer estado de Eristalis tenax (Diptera: Syrphidae) (10).
First Report of Human Nasal Myiasis Caused by Eristalis tenax in Iran (Diptera: Syrphidae).
In our country, three different cases caused by three different species including scrotal myiasis due to Dermatobia hominis in a 21-year old patient (12), urogenital myiasis due to Eristalis tenax in a 58-year old woman (13) and urogenital myiasis due to Lucilia sericata in another patient (8) were reported.
Human urogenital myiasis due to Eristalis larva: An unusual cause of ureteric obstruction.
mexicana (Macquart) y los generos Copestylum, Volucella Geoffroy y Eristalis fueron reportados en un trabajo sobre las diferentes categorias taxonomicas (R.
Territoriality in the drone fly, Eristalis tenax (Diptera: Syrphidae).
Las miasis intestinales debidas a las larvas de la "mosca zangano o abejon" Eristalis tenax, son reportadas esporadicamente en varios paises y son brevemente mencionadas en los grandes libros de Medicina Tropical y Parasitologia.
A number of flying insects such as the hover fly Eristalis tanax, the Golden caddis fly Stenophylax permistus, the herald moth Scoliopteryx libatrix, and mosquitoes of the genus Culex commonly use underground chambers as over-wintering sites (Chapman 1993).
Por la epoca en que Francesco Redi (1626-98) experimentaba para demostrar que la generacion de los insectos no podia ocurrir como decia la formula de las Georgicas, un holandes, Jan Jacobz Swammerdam (1637-69), senalaba que la leyenda se debia a una confusion y que lo que se veia surgir de la carrona de los bueyes eran moscas y no abejas; empero, pasarian todavia dos siglos antes de que el Baron Osten-Sacken mostrara que, en efecto, el diptero hoy conocido como Eristalis tenax era el responsable del engano.
Plants are pollinated almost exclusively by the syrphid fly Eristalis hirtus and the andrenid bee Andrena astragali (Tepedino 1981; Emms 1993b).
The mimetic hoverflies, Sphecomyia vittata (Wiedemann), Ceriana signifera (Loew), Tenthredomyia abbreviate (Loew) and Spilomyia hamifera Loew hold their antennae in positions which suggest the geniculate antennae of wasps (Waldbauer, 1970) and the dronefly Eristalis tenax (Linnaeus) (Diptera: Syrphidae) was able to mimic the flight behaviour of honeybees (Golding et al.