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Photography with cameras
Nikon D3x, Nikon D300, Canon 50D
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Keyword: Eyes | | Seite 1 von 11 1 2 3 4 5 6 7 8 9 10 11 | | | |
| ...hat of flies. Their bodies are black with a very hairy surface.
The long and steady antennae, whose three outer segments are fused together and can therefore be poorly differentiated from each other, appear to consist of 5 segments. The compound eyes of the males are very large and hairy and are positioned very closely together on the top of the head. . The upper part of their facets eyes consists of large facets since the lower part consists of small individual eyes (Ocelli). The female Bibio clavipes have much smaller eyes than the males. Their eyes are pure compound eyes and are hairless.
The front wings are colourless but have dark markings on their edges. The females have a spike on the tibiae of their front legs which is used for digging. | | |
| | ... species of velvet ants are striking because of their unusual shape and colour which can be a form of mimicry, a warning or a kind of camouflage. The antennae of the males have 13 segments, the females 12. The males have normally developed compound eyes and simple eyes, while females have less developed compound eyes and no simple eyes. | | |
| | | ...art of the body (cephalothorax) is pale yellowish brown to reddish brown in colour and without markings. The weak dark side edges are often difficult to recognize. On the surface of the back are dark-brown stripes which widen in the direction of the eyes without touching them. The front eyes and rear side eyes are close together. Sometimes they even touch. The deep black fangs (chelicera) are compared with the enlarged eyes. Their poison claws are long and thin. | | |
| | Bibio marci have relatively short antennae (9 sections ). Females and males can be easily differentiated by their eyes. . The males have hemispherical shaped eyes, while the female's eyes are small and on the side of the head. The females are smaller than the males. The males typically let their legs hang down in flight and are rough and hairy. The females are predominantly smooth. The wings of the females appear black, the wings of... | | |
| | Sheep bot fly | ... throughout the world.
The sheep bot fly reaches body lengths of 10-12 mm. The thorax is covered with thick golden fur. The abdomen is whitish-grey with black markings. The sheep bot fly has a broad head with large, reddish to brown compound eyes. The mouth tools are degenerate and allow only a small quantity of food to be ingested. The large, strong wings are brownish in colour. The legs are dark, hairy, and strong. The sheep bot fly is active in summer.
The females lay their eggs ...
...e degenerate and allow only a small quantity of food to be ingested. The large, strong wings are brownish in colour. The legs are dark, hairy, and strong. The sheep bot fly is active in summer.
The females lay their eggs in the nostrils or eyes of sheep. The larvae hatch from their eggs inside the females and are shot into the host animals in drops of liquid. The host animals resist this. The laying of the maggots must be done quickly, otherwise the mother will be attacked by her o...
...vae are up to 30 mm in length. After the last larval stage, the larvae are sneezed or coughed out by the host animals and fall down to the soil in which they pupate. The sheep bot fly occasionally lays its larvae in humans, especially in the eyes.
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| | Adults reach body lengths of up to 4 mm. Their bodies are slimly built and usually orange or black. The head of this fly is relatively broad and they have bright red compound eyes. The 3rd antennal segment is short and ovoid. The antennae are inclined downwards from the 2nd segment on. A small triangle of ocelli (simple eyes) can be seen on the upper half of the forehead. Orbital bristles reach from the front edge of the eyes to the edge of the forehead. The upper surface of the chest (thorax) is brownish-black in colour and also has bristles. The scutellum is rusty brown. The wings are transparent with a reddish-yellow sheen and have 2 diagonal veins which have several ... | | |
| | Pollen | | ...d nourishes the pollen grains. Pollen is spread by wind, water or living organisms. This also leads to pollination.
For many people, wind-transported pollen is problematic because it can cause allergic reactions. Symptoms include: redness of the eyes and watery eyes, sneezing and a runny nose (allergic rhinitis or hay fever). In the countryside, pollen concentration is at its highest in the morning, in the city, in the evening. Consequently rural inhabitants are advised to air between seven pm and midnight and ... | | |
| | Muscidae | | ...be found in Europe. Some examples are: stable fly, housefly and Graphomya maculata. The body length of Muscidae is between 2 and 18 mm. The flies can be gray, steel blue, green, yellow or red in colour. They have short antennae. They have 2 compound eyes and 3 simple eyes. They can bite or lick with their mouth parts. | | |
| | Spiders (Araneae) | | ...ders“ or simply as “spiders”. There are approximately 40,000 species globally, in 3,700 genuses (people will know more easily what you mean) and 108 families. Araneae have 8 legs in contrast to insects which have 6. Furthermore instead of compound eyes they have 8 simple eyes. | | |
| | The fly can reach a body length of 14 to 18 mm. It has a dark brown abdomen, the second segment of which has yellow, reddish-yellow or ochre wedge-shaped spots. The drone fly has black compound eyes, which are connected by hairy bends above and below. The females’ eyes are clearly separated, while the males’ meet. | | |
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