File:Mosca de las flores 01 - Eristalodes taeniops - Hover fly (269257356).jpg
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DescriptionMosca de las flores 01 - Eristalodes taeniops - Hover fly (269257356).jpg |
Los sírfidos (latín Syrphidae) son una importante familia de dípteros que liban el néctar de las flores adoptando el aspecto de himenópteros como las abejas y las avispas, con las que son fácilmente confundidos. El tamaño es muy variado, con especies que miden pocos milímetros y algunas muy grandes. Predominan colores pardos, anaranjados o amarillos, casi siempre con bandas bien marcadas sobre el abdomen. Han sido descritos unos 200 géneros y alrededor de 5400 especies. Son muy frecuentes sobre las flores, de las que se alimentan como adultos, consumiendo principalmente néctar pero también polen, con lo que son importantes agentes de polinización zoófila. El aspecto de los adultos es mimético del de ciertas abejas y avispas que frecuentan los mismos ambientes, con las que deben ser confundidas por los depredadores en un ejemplo notable de mimetismo batesiano. Los sírfidos comparten el rasgo anterior con los bombílidos, otra familia de moscas. Sin llegar a superar a éstos últimos, demuestran una extraordinaria capacidad para el control del vuelo, siendo capaces no sólo de suspenderse inmóviles en el aire, sino de avanzar en cualquier dirección sin girar el cuerpo. Su nombre en inglés se traduce como «moscas cernidoras» o «moscas cernícalo» (hover flies), aludiendo a esa habilidad. En la divulgación en castellano se llaman más a menudo «moscas de las flores». es.wikipedia.org |
Date | |
Source | mosca de las flores 01 - Eristalodes taeniops - Hover fly |
Author | Ferran Pestaña from Barcelona, España |
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This image was originally posted to Flickr by ferran pestaña at https://flickr.com/photos/57956171@N00/269257356 (archive). It was reviewed on 25 November 2017 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
25 November 2017
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Camera manufacturer | KONICA MINOLTA |
Camera model | DYNAX 5D |
Exposure time | 1/125 sec (0.008) |
F-number | f/10 |
ISO speed rating | 125 |
Date and time of data generation | 12:02, 14 October 2006 |
Lens focal length | 70 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop 7.0 |
File change date and time | 16:21, 14 October 2006 |
Y and C positioning | Centered |
Exposure Program | Shutter priority |
Exif version | 2.21 |
Date and time of digitizing | 12:02, 14 October 2006 |
Meaning of each component |
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APEX brightness | 8.37 |
APEX exposure bias | 0 |
Maximum land aperture | 4.97 APEX (f/5.6) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, compulsory flash firing |
Supported Flashpix version | 1 |
Color space | sRGB |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Manual white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 105 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Soft |
Saturation | High saturation |
Sharpness | Normal |
IIM version | 2 |