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Photography with cameras
Nikon D3x, Nikon D300, Canon 50D
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Keyword: Larva |
Overview - a b c d e f g h i j k l m n o p q r s t u v w x y z | |
Seite 2 von 3 1 2 3 | | | ... tarsi appear reddish brown to dark brown in colour.
The hind legs have long hairs that aid in swimming. The water scavenger beetle prefers to live in and on smaller bodies of waters with sufficient sunlight. They are often found (as adults or larvae) floating on the surface of salt water or brackish water (mixture of river and sea water). The adults eat rotten plant debris. They surface for air head first and trap air to breath under their wing covers (elytra) and "row" themselve...
... (wet or shiny car roofs, windows, etc.) having confused them with open waters.
After mating, the oviposition of the females happens in cocoons near the surface of water where the eggs are glued to water plants. Approximately 8-10 days later the larvae (with body lengths of 3-4 mm) hatch. They increase rapidly in size . The larvae feed (starting at the lastest three days after hatching) ) on smaller aquatic animals, and are even prone to cannibalism. In water they catch floating prey with their clamp-like mouthparts (mandibles), hold them tight and swim with the living prey...
...backwards with tracking the prey over the shore. They crush them with their mandibles. The exoskeleton of the prey gets covered over and over again with intestinal secretions. The prey is then kneaded into a pulpy mass which can be sucked up by the larvae. This takes 2-3 minutes. Finally the larva leaves the emptied skeleton and creeps forward back into the water. Cannibalism can become so prevalent among the larvae that they prefer to eat each other than to attack other insects. | | |
| | In addition to the wood-eating larvae, there are species that live off roots or feed on stems of thistles, nettles, figworts or grass. The larvae pupate in sealed cells in special passages dug into the wood or beneath the bark. The young longhorn beetles hatch from the pupae through an opening. Overwintering usually occurs as a larva, rarely as a beetle. | | |
| | | The larvae complete the first larval stage inside the egg and hatch after about 3 to 6 days. At this time the eggs are orange in colour. The body of the larva is segmented and reaches a length of around 8 mm. It is either dirty greenish , grey to dark grey or dark brown in colour, and has a dimpled surface. The diet of the larvae is the same as the adults. If the plant they are on is disturbed while they are feeding, the larvae fall to the ground. Often, they are not able to find their way back to the food plants and run the risk of starvation. | | |
| | |  | | Pear Sawfly Larva - Caliroa cerasi - eating from a leave | | >> Picture |
| |  | | Locust - May be Common Field Grasshopper (Chorthippus brunneus) - Larva without wings | | >> Picture |
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| |  | | Larva - Southern green stink bug - Nezara viridula | | >> Picture |
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| Frequent Queries: | | troilus luridus diet (1) | | water scavenger diet (1) | | where do Troilus Luridus live (1) | | Nezara viridula L (1) | | | |
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